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1440 Commits

Author SHA1 Message Date
Marshall Clow 6efb2bf585 escape some template specs 
llvm-svn: 188276
 2013-08-13 15:07:02 +00:00
Marshall Clow 873e890f44 Fix case mismatch 
llvm-svn: 188275
 2013-08-13 14:59:44 +00:00
Marshall Clow f77718ad1d Create a C++14 status page 
llvm-svn: 188273
 2013-08-13 14:58:39 +00:00
Marshall Clow 75f9aa9993 More support for N3657; tests for is_transparent 
llvm-svn: 188242
 2013-08-13 01:12:41 +00:00
Marshall Clow 25d3402c6a First half of support for N3657; heterogenous lookups for set/multiset 
llvm-svn: 188241
 2013-08-13 01:11:06 +00:00
Howard Hinnant f0544c2086 Nico Rieck: this patch series fixes visibility issues on Windows as explained in <http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-August/031214.html>. 
llvm-svn: 188192
 2013-08-12 18:38:34 +00:00
Howard Hinnant 6afbc442d6 Add a check for arrays of unknown bounds to is_destructible. This fixes http://llvm.org/bugs/show_bug.cgi?id=16839 
llvm-svn: 188080
 2013-08-09 16:53:45 +00:00
Howard Hinnant d7cda0680a Partial implementation of N3665. This paper was not voted into the C++1y draft. However I was looking at it and with some experimentation realized that I could partially implement it, and at the same time offer a performance optimization to cout. I simply added an xsputn override to the cout filebuf. The override does nothing special at all if there is a non-trivial codecvt installed. However if the codecvt returns true for always_noconv(), then this function can dump an entire string to fwrite, instead of doing it a character at a time under overflow(). This just makes sense. I stopped short of a full implementation of N3665 because in order to do so, xsputn would have to allocate a buffer when always_noconv() returned false, and I don't want to go to that expense. 
llvm-svn: 188077
 2013-08-09 16:25:43 +00:00
Daniel Dunbar 4a38129468 [tests] Update to use lit_config and lit package, as appropriate. 
llvm-svn: 188073
 2013-08-09 14:44:11 +00:00
Marshall Clow 2472b928d2 N3644 tests for map/multimap/set/multiset. Drive-by NOEXCEPT for __tree_const_iterator constructor. Fix comment typos in other tests 
llvm-svn: 188019
 2013-08-08 21:52:50 +00:00
Howard Hinnant 8c9742051d My previous reorganization of addressof broke -std=c++03. Thanks much to Arnold Schwaighofer for catching this. This patch also catches a few more missing addressof in <future>, thanks go to Zhihao Yuan for catching these. 
llvm-svn: 187997
 2013-08-08 18:38:55 +00:00
Arnold Schwaighofer 5331e3a481 Revert r187927. 
Zhihao Yuan: Replace operator& with addressof in reference_wrapper constructor.

It breaks a clang bootstrap.

llvm-svn: 187959
 2013-08-08 03:06:24 +00:00
Howard Hinnant 57f783da4e Update CREDITS.TXT 
llvm-svn: 187936
 2013-08-07 23:29:10 +00:00
Howard Hinnant 9027f5e3de Zhihao Yuan: Replace operator& with addressof in reference_wrapper constructor. 
llvm-svn: 187927
 2013-08-07 23:02:42 +00:00
Marshall Clow 2c1a894061 N3644 support for <unordered_set> and <unordered_map> 
llvm-svn: 187915
 2013-08-07 21:30:44 +00:00
Marshall Clow 36b2a3b0e5 N3644 support for vector<bool> 
llvm-svn: 187911
 2013-08-07 20:53:44 +00:00
Marshall Clow 798061ded6 N3644 support for vector<bool> 
llvm-svn: 187910
 2013-08-07 20:53:38 +00:00
Marshall Clow 07186a7d2d N3644 support for <string> and <vector> 
llvm-svn: 187909
 2013-08-07 20:48:48 +00:00
Howard Hinnant 303e27d8ce Correct logic bug in find optimization for vector<bool>. This fixes http://llvm.org/bugs/show_bug.cgi?id=16816 
llvm-svn: 187908
 2013-08-07 20:42:16 +00:00
Howard Hinnant d098713aaf War on tabs 
llvm-svn: 187906
 2013-08-07 19:39:48 +00:00
Howard Hinnant c5582b57c6 Rename time.duration.literals step 3 
llvm-svn: 187905
 2013-08-07 19:39:11 +00:00
Howard Hinnant 35e09c7ad7 Rename time.duration.literals step 2 
llvm-svn: 187904
 2013-08-07 19:36:50 +00:00
Howard Hinnant 453ca75d24 Rename time.duration.literals step 1 
llvm-svn: 187903
 2013-08-07 19:35:46 +00:00
Marshall Clow e141dc0490 Implement tests for NULL iterators for <array> re: N3644 
llvm-svn: 187809
 2013-08-06 17:17:13 +00:00
Marshall Clow 8fe0a3722c Implement NULL iterators for <forward_list> and <deque> re: N3644 
llvm-svn: 187805
 2013-08-06 16:14:36 +00:00
Marshall Clow 0c37cfd8b8 Implement NULL iterators for <list> re: N3644 
llvm-svn: 187740
 2013-08-05 21:23:28 +00:00
Howard Hinnant 2f51de568f debug mode for unordered_map. Also picked up a missing check and test in unordered_multimap. This wraps up debug mode for the unordered containers. 
llvm-svn: 187659
 2013-08-02 17:50:49 +00:00
Howard Hinnant 42a3046eef Ok, 3 major changes for debug mode in one commit: 
1.  I had been detecting and trapping iterator == and \!= among iterators
    in different containers as an error.  But the trapping itself is actually
    an error.
    
    Consider:
    
    #include <iostream>
    #include <vector>
    #include <algorithm>

    template <class C>
    void
    display(const C& c)
    {
        std::cout << "{";
        bool first = true;
        for (const auto& x : c)
        {
            if (\!first)
                std::cout << ", ";
            first = false;
            std::cout << x;
        }
        std::cout << "}\n";
    }

    int
    main()
    {
        typedef std::vector<int> V;
        V v1 = {1, 3, 5};
        V v2 = {2, 4, 6};
        display(v1);
        display(v2);
        V::iterator i = std::find(v1.begin(), v1.end(), 1);
        V::iterator j = std::find(v2.begin(), v2.end(), 2);
        if (*i == *j)
            i = j;    // perfectly legal
        // ...
        if (i \!= j)   // the only way to check
            v2.push_back(*i);
        display(v1);
        display(v2);
    }

    It is legal to assign an iterator from one container to another of the
    same type.  This is required to work.  One might want to test whether or
    not such an assignment had been made.  The way one performs such a check
    is using the iterator's ==, \!= operator.  This is a logical and necessary
    function and does not constitute an error.

2.  I had a header circular dependence bug when _LIBCPP_DEBUG2 is defined.
    This caused a problem in several of the libc++ tests.
    Fixed.

3.  There is a serious problem when _LIBCPP_DEBUG2=1 at the moment in that
    std::basic_string is inoperable.  std::basic_string uses __wrap_iterator
    to implement its iterators.  __wrap_iterator has been rigged up in debug
    mode to support vector.  But string hasn't been rigged up yet.  This means
    that one gets false positives when using std::string in debug mode.  I've
    upped std::string's priority in www/debug_mode.html.

llvm-svn: 187636
 2013-08-02 00:26:35 +00:00
Howard Hinnant 0be8f64c44 Nico Rieck: Currently _MSC_VER and _WIN32 are used to guard code which is 
MSVC-specific, MSVCRT-specific, or Windows-specific. Because Clang can
also define _MSC_VER, and MSVCRT is not necessarily the only C runtime,
these macros should not be used interchangeably.

This patch divides all Windows-related bits into the aforementioned
categories. Two new macros are introduced:

- _LIBCPP_MSVC: Defined when compiling with MSVC. Detected using
  _MSC_VER, excluding Clang.
- _LIBCPP_MSVCRT: Defined when using the Microsoft CRT. This is the default
   when _WIN32 is defined.

This leaves _WIN32 for code using the Windows API.

This also corrects the spelling of _LIBCP_HAS_IS_BASE_OF to _LIBCPP_HAS_IS_BASE_OF.

Nico, please prepare a patch for CREDITS.TXT, thanks.

llvm-svn: 187593
 2013-08-01 18:17:34 +00:00
Howard Hinnant 0f242bea10 Taking another swing at correctly optimizing fill_n. 
llvm-svn: 187587
 2013-08-01 17:29:28 +00:00
Howard Hinnant ce075cf1aa Constrain fill_n -> memset operations to include implicit convertibility to unsigned char. This fixes http://llvm.org/bugs/show_bug.cgi?id=16764. Also a drive-by fix on a chrono test suite bug. 
llvm-svn: 187552
 2013-08-01 00:41:55 +00:00
Marshall Clow a1cd191624 Implement constexpr (n3302) and fix operator *= and /= 
llvm-svn: 187529
 2013-07-31 21:02:34 +00:00
Marshall Clow df67172d59 Backwards! 
llvm-svn: 187518
 2013-07-31 19:39:37 +00:00
Marshall Clow a1d0d376c8 Implement n3469 - constexpr for chrono 
llvm-svn: 187517
 2013-07-31 19:32:19 +00:00
Howard Hinnant 4c80bfbd53 Debug mode for unordered_multimap. Some mods were done for unordered_map as well to keep all the tests passing. However unordered_map is at the very least still missing tests, if not functionality (if it isn't tested, it probably isn't working). 
llvm-svn: 187446
 2013-07-30 21:04:42 +00:00
Howard Hinnant e5c13decbe Debug mode for unordered_multiset. The exercise spotted a few places I had missed on unordered_set, so I picked those up as well. 
There are actually two debug modes:

   1.  -D_LIBCPP_DEBUG2 or -D_LIBCPP_DEBUG2=1
       This is a relatively expensive debug mode, but very thorough.  This is normally what you want to debug with, but may turn O(1) operations into O(N) operations.

   2.  -D_LIBCPP_DEBUG2=0
       This is "debug lite."  Only preconditions that can be checked with O(1) expense are checked.  For example range checking on an indexing operation.  But not iterator validity.

llvm-svn: 187369
 2013-07-29 19:05:47 +00:00
Howard Hinnant aa5aa98eab Add operator new[] to test. Partial fix for valgrind warning in http://llvm.org/bugs/show_bug.cgi?id=16703. 
llvm-svn: 187358
 2013-07-29 14:43:42 +00:00
Marshall Clow 83c08b4497 Implement N3421; comparison predicates<void> 
llvm-svn: 187357
 2013-07-29 14:21:53 +00:00
Howard Hinnant 55d5e76fdb Glen: Minor tweaks to locale.cpp to help it compile with exceptions turned off. 
llvm-svn: 187332
 2013-07-28 18:20:00 +00:00
Marshall Clow 7aa54577d1 literal suffixes for std::chrono 
llvm-svn: 187078
 2013-07-24 21:18:14 +00:00
Howard Hinnant b24c802489 Debug mode for unordered_set. I believe this to be fairly complete for 
unordered_set, however it is not complete yet for unordered_multiset,
unordered_map or unordered_multimap.  There has been a lot of work done
for these other three containers, however that work was done just to
keep all of the tests passing.

You can try this out with -D_LIBCPP_DEBUG2.  You will have to link to a
libc++.dylib that has been compiled with src/debug.cpp.  So far, vector
(but not vector<bool>), list, and unordered_set are treated.  I hope to
get the other three unordered containers up fairly quickly now that
unordered_set is done.

The flag _LIBCPP_DEBUG2 will eventually be changed to _LIBCPP_DEBUG, but
not today.  This is my second effort at getting debug mode going for
libc++, and I'm not quite yet ready to throw all of the work under the
first attempt away.

The basic design is that all of the debug information is kept in a
central database, instead of in the containers.  This has been done as
an attempt to have debug mode and non-debug mode be ABI compatible with
each other.  There are some circumstances where if you construct a
container in an environment without debug mode and pass it into debug
mode, the checking will get confused and let you know with a readable
error message.  Passing containers the other way: from debug mode out to
a non-debugging mode container should be 100% safe (at least that is the
goal).

llvm-svn: 186991
 2013-07-23 22:01:58 +00:00
Marshall Clow ca0be23b39 Implement string suffixes from N3642 
llvm-svn: 186956
 2013-07-23 17:05:24 +00:00
Howard Hinnant 7491a16031 Bill Fisher: This patch fixes a bug where std::regex in ECMAScript mode was ignoring capture groups inside lookahead assertions. 
For example, matching /(?=(a))(a)/ to "a" should yield two captures: \1 = "a", \2 = "a"

llvm-svn: 186954
 2013-07-23 16:18:04 +00:00
Howard Hinnant 1468d0cec7 Add some friendly messages to libcxx calls to abort(). 
llvm-svn: 186951
 2013-07-23 16:05:56 +00:00
Richard Smith 79c06417d1 Add some missing cv-qualifiers. 
llvm-svn: 186909
 2013-07-23 01:24:30 +00:00
Anders Carlsson 8bb1dbbf75 Fix a bug in std::fill_n where memset would end up being called in cases when it shouldn’t. 
Reviewed by Howard.

llvm-svn: 186875
 2013-07-22 21:08:00 +00:00
Marshall Clow 75eff74803 Make tuple's constructor and std::get<>(tuple) constexpr. Final stage of fixing bug #16599. Thanks to Howard for the review and updates. 
llvm-svn: 186834
 2013-07-22 16:02:19 +00:00
Marshall Clow 8bf1f08a2c Make std::get constexpr 
llvm-svn: 186525
 2013-07-17 18:25:36 +00:00
Howard Hinnant fee09c68a0 Add pointer format test for Windows. 
llvm-svn: 186472
 2013-07-16 23:50:06 +00:00
Marshall Clow 18191ceb54 Bug 16599 part 2: Make std::pair's constructors and comparison operators (and make_pair) constexpr. 
llvm-svn: 186430
 2013-07-16 17:45:44 +00:00
Marshall Clow 1c682f0f0c Make std::forward and std::move (and std::move_if_noexcept) constexpr in C++14 
llvm-svn: 186344
 2013-07-15 20:46:11 +00:00
Howard Hinnant 22161401df Bill Fisher: This patch fixes an ill-formed comparison when parsing control escapes, e.g. "\cA\ca". The code will now throw an error_escape exception for invalid control sequences like "\c:" or "\c". 
I've added the test cases to bad_escape.pass.cpp.

llvm-svn: 186335
 2013-07-15 18:21:11 +00:00
Howard Hinnant 10f8387b94 A few fixes to tests for Windows port. 
llvm-svn: 186334
 2013-07-15 18:09:11 +00:00
Marshall Clow f20d2672e2 Add macro _LIBCPP_CONSTEXPR_AFTER_CXX11 for functions that have been marked constexpr post C++11 
llvm-svn: 186323
 2013-07-15 14:57:19 +00:00
Marshall Clow e99520c72e Implement n3584 - Addressing Tuples by Type 
llvm-svn: 186237
 2013-07-13 02:54:05 +00:00
Howard Hinnant 6d8a38c537 Port make_[un]signed tests to platforms where sizeof(wchar_t) == 2. 
llvm-svn: 186136
 2013-07-11 23:51:05 +00:00
Howard Hinnant c815a4e297 Bill Fisher: This patch fixes a less likely case where '\b' can back up into invalid memory, when driven by a regex_iterator (for case 1, see r185273 or http://llvm.org/bugs/show_bug.cgi?id=16240) 
The attached test program also supplies a test for the case 1 fix in r185273.

llvm-svn: 186089
 2013-07-11 15:32:55 +00:00
Marshall Clow 48c9fe29b2 Improved tests (and fixed a bug in the tests); thanks to Richard Smith for the suggestion 
llvm-svn: 186022
 2013-07-10 18:01:34 +00:00
Marshall Clow 8e1cb5adb3 move __save_flags from <random> to <ios> in preparation for reuse; no functionality change 
llvm-svn: 185968
 2013-07-09 20:34:14 +00:00
Howard Hinnant dbdeb153d8 Bill Fisher: This patch fixes a bug where regex_iterator doesn't indicate when it's restarting in the middle of a string. This bug causes /^a/ to match in the middle of the string "aaaaaaa", during iteration. 
My patch uses  to communicate when  is false.

llvm-svn: 185950
 2013-07-09 17:29:09 +00:00
Howard Hinnant e0fe3d2e96 War on tabs. 
llvm-svn: 185865
 2013-07-08 21:06:38 +00:00
Marshall Clow a7b0e5ddf8 Implement n3668 - std::exchange 
llvm-svn: 185863
 2013-07-08 20:54:40 +00:00
Marshall Clow f331327c6a Implement n3545 for c++14 
llvm-svn: 185856
 2013-07-08 20:05:31 +00:00
Howard Hinnant 271426e6ab Windows port for __codecvt_utf8<wchar_t>. 
llvm-svn: 185849
 2013-07-08 19:03:07 +00:00
Howard Hinnant 5e00063b86 Silence -Wint-to-void-pointer-cast warning in test. 
llvm-svn: 185756
 2013-07-06 14:41:36 +00:00
Howard Hinnant abb160e689 Remove implicit conversion from __value_type to value_type in [unordered_][multi]map. This fixes http://llvm.org/bugs/show_bug.cgi?id=16549 
llvm-svn: 185711
 2013-07-05 18:06:00 +00:00
Howard Hinnant 4a95f9eb7e Removed extension in [unordered_][multi]map which allowed one to emplace using just an argument for the key, as opposed to using piecewise_construct. However a bug report exposed that this created an unfortunate ambiguity. People who are currently using the extension will be notified the next time they compile, and will have to change to using piecewise_construct. There are no ABI issues with the removal of this extension. This fixes http://llvm.org/bugs/show_bug.cgi?id=16542 
llvm-svn: 185666
 2013-07-04 20:59:16 +00:00
Howard Hinnant bbdf669bde Simplify comparators of [unordered_][multi]map. This fixes http://llvm.org/bugs/show_bug.cgi?id=16538 
llvm-svn: 185665
 2013-07-04 19:46:35 +00:00
Joerg Sonnenberger 0644627bef Fix bashism. 
llvm-svn: 185646
 2013-07-04 15:11:10 +00:00
Marshall Clow 5b2ef2b1a6 Patch for N3655 (Transformation type traits) with Howard's additions 
llvm-svn: 185597
 2013-07-04 00:10:01 +00:00
Marshall Clow 60df5996a4 Commit patch for integer sequences. Suggested by Richard, reworked by Howard, and annotated by me 
llvm-svn: 185569
 2013-07-03 19:20:30 +00:00
Howard Hinnant 84b569d5cf Matthew Dempsky: Attached patch replaces the type punning with memcpy(), which on 
x86/x86-64 clang optimizes to direct word accesses anyway.  This fixes an unaligned word access in murmurhash/cityhash.

llvm-svn: 185558
 2013-07-03 17:39:28 +00:00
Marshall Clow 95ddb53049 Adorn make_unique with visibility and inline attributes 
llvm-svn: 185468
 2013-07-02 20:06:09 +00:00
Joerg Sonnenberger 392a178c33 Don't free the C locale on NetBSD. 
llvm-svn: 185467
 2013-07-02 19:46:18 +00:00
Howard Hinnant 904e587fa9 Updated CREDITS.TXT 
llvm-svn: 185462
 2013-07-02 19:00:29 +00:00
Howard Hinnant 9cfcdcb9e2 Matthew Dempsky: In libc++'s <locale>, there's already dependence on an snprintf_l 
implementation and all of the char buffers readily have their
allocated size available, so we can easily use snprintf_l instead of
sprintf_l.

This avoids OpenBSD's linker warnings against using sprintf and
vsprintf.
Howard:  Please consider a patch for CREDITS.TXT

llvm-svn: 185457
 2013-07-02 18:42:28 +00:00
Howard Hinnant 3fc9ef22b3 Constrain launch ~ operator to defined bits. 
llvm-svn: 185452
 2013-07-02 18:01:41 +00:00
Howard Hinnant ca69356d52 Windows support in thread::hardware_concurrency. 
llvm-svn: 185451
 2013-07-02 17:53:48 +00:00
Howard Hinnant 43bbdd29de Bill Fisher: This patch fixes a bug where the regex parser doesn't advance the pointer after reading the third character of an octal escape (in awk mode). 
That is, regex{"\141", awk} results in the regular expression /a1/ instead of just /a/.

llvm-svn: 185449
 2013-07-02 17:43:31 +00:00
Howard Hinnant 4a142ec6b0 XFAIL this test on 10.7 and 10.8 
llvm-svn: 185391
 2013-07-01 22:59:14 +00:00
Marshall Clow 28d8ba5f79 Implement n3656 - make_unique. Thanks to Howard for the review and suggestions. 
llvm-svn: 185352
 2013-07-01 18:16:03 +00:00
Marshall Clow d51891063f Implement n3658 - Compile-time integer sequences 
llvm-svn: 185343
 2013-07-01 16:26:55 +00:00
Howard Hinnant eecacc0fad In istream::ignore, check the delimeter as an int_type, not as a char_type, so as to correctly handle EOF. This fixes http://llvm.org/bugs/show_bug.cgi?id=16427 
llvm-svn: 185298
 2013-07-01 00:37:50 +00:00
Howard Hinnant 9dbbf8dece The bind and function functor constructors and assignment operators were overly general and getting confused with the copy constructor and copy assignment operators. Constrained them. This fixes http://llvm.org/bugs/show_bug.cgi?id=16385 
llvm-svn: 185297
 2013-07-01 00:01:51 +00:00
Howard Hinnant 9bf42533b7 Fix bind by making _is_valid_bind_return more robust. It should return false instead of give a compile time error, always. The problem was down in ____mu_return, the version that handles nested bind objects. This fixes http://llvm.org/bugs/show_bug.cgi?id=16343 
llvm-svn: 185289
 2013-06-30 19:48:15 +00:00
Howard Hinnant 8bd1771abe Matthew Dempsky: POSIX defines that the _POSIX_C_SOURCE macros are to be set by user 
code to specify what version of POSIX the system should provide.  If
you want to check what version of POSIX is actually available, you're
supposed to test _POSIX_VERSION.

However, since sysconf() has been in POSIX since 1995, it's probably
safe to assume it's available on any system with a C++11 compiler,
especially if _SC_NPROCESSORS_ONLN is defined too.  So no point in a
complicated preprocessor rule if just we unconditionally include
<unistd.h> (on non-Windows systems).

Also, I've added a #warning for to help porters detect when a suitable
implementation isn't detected at compile-time.

Howard:  Matthew, can you patch CREDITS.TXT?  Thanks.
llvm-svn: 185275
 2013-06-30 00:14:43 +00:00
Howard Hinnant 27841fd803 Matthew Dempsky: Same as stdexcept.cpp in libc++abi: we've already computed 'len strlen(msg)', so we can use memcpy() instead of strcpy(). 
llvm-svn: 185274
 2013-06-29 23:53:20 +00:00
Howard Hinnant 660f2ae422 Prevent '\b' from backing up into invalid memory. Fixes http://llvm.org/bugs/show_bug.cgi?id=16240. Sorry, I can not think of a good test case for this one, except by running valgrind as reported in the bug. 
llvm-svn: 185273
 2013-06-29 23:45:43 +00:00
Howard Hinnant 1836462545 Add operators to make launch a bitmask type. Searched all of the standard, and libc++ to see if this error occurred elsewhere and didn't see any other place. This fixes http://llvm.org/bugs/show_bug.cgi?id=16207 
llvm-svn: 185265
 2013-06-29 18:38:17 +00:00
Howard Hinnant e9672d0448 Make cout a little more thread-safe. This fixes http://llvm.org/bugs/show_bug.cgi?id=12158 
llvm-svn: 185222
 2013-06-28 21:40:28 +00:00
Howard Hinnant 3f75953d82 Provide missing '{' in parsing extended quoted characters. This fixes http://llvm.org/bugs/show_bug.cgi?id=16135 
llvm-svn: 185211
 2013-06-28 20:31:05 +00:00
Howard Hinnant 8d1e822432 William Fisher: A bug in __lookahead::exec causes /(?=^)b/ to match ab. When makes a recursive call to , it passes true for the value of . This causes a beginning-of-line anchor (^) inside a lookahead assertion to match anywhere in the text. This fixes http://llvm.org/bugs/show_bug.cgi?id=11118 
llvm-svn: 185196
 2013-06-28 19:11:23 +00:00
Howard Hinnant 21246e3314 Bill Fisher: Fix for failing to throw an exception in regex when parsing an invalid escape sequence. This fixes http://llvm.org/bugs/show_bug.cgi?id=16023 
llvm-svn: 185192
 2013-06-28 18:57:30 +00:00
Howard Hinnant afe8b967cc Dimitry Andric: Add const to constexpr member functions in order to cope with new C++1y language rules. This silences -Wconstexpr-not-const warnings. 
llvm-svn: 185181
 2013-06-28 18:09:35 +00:00
Howard Hinnant eec721826c Implement full support for non-pointer pointers in custom allocators for string. This completes the custom pointer support for the entire library. 
llvm-svn: 185167
 2013-06-28 16:59:19 +00:00
Howard Hinnant 3ec1f00b73 Implement full support for non-pointer pointers in custom allocators for vector. 
llvm-svn: 185093
 2013-06-27 19:35:32 +00:00
Howard Hinnant 866d4efa7f Implement full support for non-pointer pointers in custom allocators for list. 
llvm-svn: 184859
 2013-06-25 16:08:47 +00:00
Howard Hinnant 8a27ba8051 Implement full support for non-pointer pointers in custom allocators for forward_list. 
llvm-svn: 184759
 2013-06-24 17:17:28 +00:00
Dmitri Gribenko c3f9c80894 Fix typo in assertion message. Reported by Shriramana Sharma. 
llvm-svn: 184691
 2013-06-24 06:15:57 +00:00
Howard Hinnant 14e200d14d Implement full support for non-pointer pointers in custom allocators for deque. 
llvm-svn: 184673
 2013-06-23 21:17:24 +00:00
Howard Hinnant 307f814372 Implement full support for non-pointer types in custom allocators. This is for the unordered containers only. This work still needs to be done on the sequence containers. 
llvm-svn: 184635
 2013-06-22 15:21:29 +00:00
Howard Hinnant 07d3eccd26 Implement full support for non-pointer types in custom allocators. This is for the associative containers only. This work still needs to be done on the unordered and sequence containers. Fixes http://llvm.org/bugs/show_bug.cgi?id=15978 
llvm-svn: 184358
 2013-06-19 21:29:40 +00:00
Howard Hinnant e7b6d544f0 Test case for r183481. 
llvm-svn: 183522
 2013-06-07 14:24:18 +00:00
Howard Hinnant 30444adc70 Minor bug fix for allowing an extension of const-qualified types in containers. 
llvm-svn: 183481
 2013-06-07 01:56:37 +00:00
Howard Hinnant 9d3ccc700f Neglected to remove a debugging comment from last commit. 
llvm-svn: 182422
 2013-05-21 21:19:35 +00:00
Howard Hinnant 849821cffb Fix a couple of bugs in linear_congruential_engine::seed. Regression test added. 
llvm-svn: 182421
 2013-05-21 21:05:12 +00:00
Joerg Sonnenberger 50544e7e65 Add NetBSD support. 
llvm-svn: 182162
 2013-05-17 21:17:34 +00:00
Joerg Sonnenberger df6bbaa528 Create a weak pthread_create reference on NetBSD to not force a 
dependency on libpthread for code that doesn't use threads itself.

llvm-svn: 182161
 2013-05-17 21:16:18 +00:00
Howard Hinnant 9daaf5775c Glen: This patch gets the string conversion functions working on Windows. It also refactors repetitive code in string.cpp do greatly reduce the repetitiveness, increasing maintainability. 
llvm-svn: 182026
 2013-05-16 17:13:40 +00:00
Howard Hinnant 0125ab809f Remove cv qualifiers from member pointers in the __member_pointer_traits test. This was causing a const-qualified bind result to malfunction. This was a recent regression due to the new use of __member_pointer_traits in restricting the __invokable and __invoke_of tests. 
llvm-svn: 181935
 2013-05-15 21:49:27 +00:00
David Blaikie f13dbe4799 Fixing the MSan/compiler-rt build 
Patch by Evgieniy Stepanov, review by İsmail Dönmez.

llvm-svn: 181740
 2013-05-13 21:53:44 +00:00
Howard Hinnant 9449989601 İsmail Dönmez: Enable quick_exit on linux. 
llvm-svn: 181612
 2013-05-10 17:36:59 +00:00
David Dean a9ac518364 XFAIL this test when using the darwin12 system library. Reviewed by Howard 
llvm-svn: 181610
 2013-05-10 17:25:57 +00:00
Marshall Clow fce85ba455 Fix incorrect type usage; nice catch by Sebastian 
llvm-svn: 181569
 2013-05-10 00:16:10 +00:00
Joerg Sonnenberger dd6a025986 Don't try to free the C locale. 
llvm-svn: 181559
 2013-05-09 23:06:35 +00:00
Marshall Clow 0b0bbd2f22 Implement n3607: 'equal', 'mismatch', and 'is_permutation' 
llvm-svn: 181548
 2013-05-09 21:14:23 +00:00
Joerg Sonnenberger 8a5a9dfb5d Initialize codecvt explicitly with the C locale, which might not be 0. 
llvm-svn: 181534
 2013-05-09 19:00:18 +00:00
Howard Hinnant 266abefed0 Put a 1-character unget buffer into cin. This fixes http://llvm.org/bugs/show_bug.cgi?id=15867 
llvm-svn: 181470
 2013-05-08 21:18:42 +00:00
Howard Hinnant 866ed94db1 Constrain __invoke functions more accurately. This fixes http://llvm.org/bugs/show_bug.cgi?id=15861 . 
llvm-svn: 181377
 2013-05-07 23:40:12 +00:00
Howard Hinnant 81aa5cb804 Introduce _LIBCPP_STD_VER. This can be set by the client (or the clang driver). Or it will be defaulted. The default is 11 if -std= c++11 or eariler, else it will default to the current year modulo the century. We anticipate it defaulting to 14 for C++14 when the time comes. For now, post-C++11 libcxx implementations should protect themselves with #if _LIBCPP_STD_VER > 11. 
llvm-svn: 181347
 2013-05-07 20:16:13 +00:00
Howard Hinnant 6b1455f6f1 Mark some tests with XFAIL for Lion and Mountain Lion. 
llvm-svn: 181336
 2013-05-07 17:37:19 +00:00
Howard Hinnant eedfabd96e Expose accidentally removed __compressed_pair constructor taking piecewise_construct_t. This fixes http://llvm.org/bugs/show_bug.cgi?id=15918 . 
llvm-svn: 181217
 2013-05-06 16:58:36 +00:00
Howard Hinnant da9ca0b405 Stephan Tolksdorf: fixes the issue in the <atomic> header and adds corresponding tests. I've used macros to fall back to a user-provided default constructor if _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS (though I suspect that there won't be many users defining that macro). 
The tests use placement new to check that atomic values get properly zero-initialized. I had to modify the atomic_is_lock_free test, because default initialization of an object of const type 'const A' (aka 'const atomic<int>') requires a user-provided default constructor.

llvm-svn: 180945
 2013-05-02 20:18:43 +00:00
Joerg Sonnenberger f380515753 The push/pop variant of pragma GCC diagnostic is only supported by Clang 
and GCC 4.6 and newer, so protect accordingly.

llvm-svn: 180943
 2013-05-02 19:34:26 +00:00
Joerg Sonnenberger 087e35ec03 Make it possible to provide special (linker) flags for the thread tests. 
Use it to build & link against libpthread on NetBSD for tests iff they
are testing the thread interface.

llvm-svn: 180942
 2013-05-02 19:21:36 +00:00
Joerg Sonnenberger aa05f9eaf3 Add explicit casts to unsigned char before calling ctype functions. 
Fixes the value range on platforms with signed char.

llvm-svn: 180940
 2013-05-02 19:17:48 +00:00
Howard Hinnant 35abaab7d3 This patch introduces an alternative layout for basic_string which when the string is short, the data pointer will be word-aligned. It can be activated with -D_LIBCPP_ALTERNATE_STRING_LAYOUT. These two different layouts (the default and _LIBCPP_ALTERNATE_STRING_LAYOUT) are not ABI compatible with each other. Once one is chosen for a given platform, it is disruptive to change it. 
llvm-svn: 180811
 2013-04-30 21:44:48 +00:00
Joerg Sonnenberger 3f9d685941 Add entry for myself. 
llvm-svn: 180728
 2013-04-29 19:55:32 +00:00
Joerg Sonnenberger 21883e9478 Use protected version of the malloc attribute in case source wants to 
define malloc as macro.

llvm-svn: 180727
 2013-04-29 19:52:08 +00:00
Joerg Sonnenberger a39fe8c59e GCC doesn't support __has_attribute. 
llvm-svn: 180683
 2013-04-27 20:51:42 +00:00
Joerg Sonnenberger 85ad6c99c7 Use static_cast. 
llvm-svn: 180680
 2013-04-27 19:13:31 +00:00
Joerg Sonnenberger 2ed7030c1a Use reinterpret_casts directly in place of C-style casts. 
llvm-svn: 180679
 2013-04-27 19:12:36 +00:00
Joerg Sonnenberger ff3ce2bdc0 Only use Clang pragma when compiling with clang. 
llvm-svn: 180678
 2013-04-27 19:10:15 +00:00
Joerg Sonnenberger f53c3ca9eb Fix typos. 
llvm-svn: 180598
 2013-04-26 09:40:18 +00:00
Howard Hinnant a2ee3a6e2e İsmail Dönmez: Change to mktemp template to make it compatible with Linux. 
llvm-svn: 180267
 2013-04-25 16:08:55 +00:00
Howard Hinnant 03ec04f9b5 default_delete needs a static_assert against void types. I had previously thought that sizeof(void) would take care of this. I was wrong. 
llvm-svn: 180213
 2013-04-24 19:44:26 +00:00
Joerg Sonnenberger 4341ad3500 Avoid bash specific functionality to work with any POSIX shell 
implementing $(( )).

llvm-svn: 180139
 2013-04-23 19:53:24 +00:00
Bob Wilson 5a348a12bd Change makefile comment to refer to libc++ instead of libcpp. 
llvm-svn: 180135
 2013-04-23 19:26:55 +00:00
Bob Wilson 03fa38aa5b PR15820: Use tar instead of rsync to install the headers. 
llvm-svn: 180132
 2013-04-23 18:51:51 +00:00
Bob Wilson 01fee349d9 PR12597: Remove "chown -R root:wheel" from the makefile. 
llvm-svn: 180122
 2013-04-23 17:30:35 +00:00
Howard Hinnant f8bb3e522d Zero-initialize all mbstate_t in the codecvt tests. 
llvm-svn: 180108
 2013-04-23 14:09:35 +00:00
Howard Hinnant 210051548e Modest performance improvement for std::string's operator==. 
llvm-svn: 180072
 2013-04-22 23:55:13 +00:00
Howard Hinnant 20428e94e0 Somehow aligned_union got dropped through the cracks. This adds it. Did a drive-by fix of alignment_of while I was in the neighborhood. 
llvm-svn: 180036
 2013-04-22 19:37:49 +00:00
Howard Hinnant ab65a6f560 After years of telling people: 'If you ever find any of my code that self-move-assigns, send me a bug report.' Somebody finally took me up on it. vector::erase(begin(), begin()) does a self-move-assign of every element in the vector, leaving all of those elements in an unspecified state. I checked the other containers for this same bug and did not find it. Added test case. 
llvm-svn: 179760
 2013-04-18 15:02:57 +00:00
Howard Hinnant 9a20da75ef I believe this finishes up debug mode for list. The testing is a little weak, but I believe all of the functionality is there. Certainly enough for people to checkout and start beating up on. 
llvm-svn: 179632
 2013-04-16 21:42:36 +00:00
Howard Hinnant c5894133bc Added extra space to end of EXTRA_FLAGS in buildit. This fixes http://llvm.org/bugs/show_bug.cgi?id=15761 
llvm-svn: 179609
 2013-04-16 17:34:20 +00:00
Howard Hinnant c76d2bda6f addressof misbehaving for type with an implicit conversion operator to char&. This fixes http://llvm.org/bugs/show_bug.cgi?id=15754 
llvm-svn: 179608
 2013-04-16 17:27:56 +00:00
Howard Hinnant e7389a6915 Numeric parsing was getting the wrong answer when faced with very long inputs. This fixes both http://llvm.org/bugs/show_bug.cgi?id=15751 and http://llvm.org/bugs/show_bug.cgi?id=15740 
llvm-svn: 179556
 2013-04-15 20:40:06 +00:00
Howard Hinnant f3b02b17af Accidentally disallowed explicit tuple conversions when all elements of the tuple can be explicitly converted. 
llvm-svn: 179467
 2013-04-14 00:01:13 +00:00
Howard Hinnant 40487ca25e Set failbit when strtold sets errno to ERANGE when parsing floating point values. 
llvm-svn: 179461
 2013-04-13 18:19:25 +00:00
Howard Hinnant 24afdf71c1 Ruben Van Boxem: Turn islower_l and isupper_l into functions (instead of macros) on Windows only to quell a warning during libc++ building. 
llvm-svn: 179408
 2013-04-12 20:22:57 +00:00
Howard Hinnant 98381453c0 Change <cwchar> and <cstring> to look out for flags which may or may not be set by the C headers <wchar.h> and <string.h> indicating C support for the C++-altered wcschr, wcspbrk, wcsrchr, wcsstr, wmemchr, strchr, strpbrk, strrchr, memchr, and strstr. This was already done in <cstring> for other platforms using other flags, so just had to add one more flag to the list there. 
llvm-svn: 179041
 2013-04-08 18:59:28 +00:00
Howard Hinnant f750923161 Fix bug in __libcpp_db::__iterator_copy. Add debug test for swaping lists. 
llvm-svn: 178892
 2013-04-05 17:58:52 +00:00
Howard Hinnant 1b81829979 More list debug mode tests. 
llvm-svn: 178873
 2013-04-05 15:04:10 +00:00
Howard Hinnant b0e4c9d01b More work on debug mode for list. 
llvm-svn: 178819
 2013-04-05 00:18:49 +00:00
Howard Hinnant b13fcad677 Somehow search_n never got tested, so of course it had a bug in it. This fixes http://llvm.org/bugs/show_bug.cgi?id=15667. 
llvm-svn: 178764
 2013-04-04 15:40:48 +00:00
Howard Hinnant ea48b6dcd0 Fix stupid but harmless type-o. Fixes http://llvm.org/bugs/show_bug.cgi?id=15657. 
llvm-svn: 178691
 2013-04-03 20:29:45 +00:00
Howard Hinnant 1347d33451 The move / swap members were not correctly taking all of the possible states of the basic_stringbuf into account. Just rewrote these members. Test included. This fixes http://llvm.org/bugs/show_bug.cgi?id=15659. 
llvm-svn: 178690
 2013-04-03 20:21:29 +00:00
Howard Hinnant 459448241a Reference: http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20130325/077133.html 
llvm-svn: 178581
 2013-04-02 22:14:51 +00:00
Howard Hinnant 516487765a The cmake script is failing to copy cxxabi.h to the right place because it was generating to destination path like so /include// and dstdir can legally be blank from my interpretation of the script, and this would then generate a path like libcxx/include// which is illegal. 
llvm-svn: 178579
 2013-04-02 21:33:01 +00:00
Howard Hinnant 575e4e3650 Richard Smith: It was pointed out to me off-list that libc++'s non-compiler-builtin 
implementation of std::is_polymorphic does this:

template <class _Tp> struct __is_polymorphic1 : public _Tp {};

... and that g++ rejects this if _Tp has an inaccessible virtual destructor
(because __is_polymorphic1<_Tp> would have a deleted virtual destructor
overriding _Tp's non-deleted destructor). Clang was failing to reject this;
I've fixed that in r178563, but that causes libc++'s corresponding test
case to fail with both clang and gcc when using the fallback
implementation. The fallback code also incorrectly rejects final types.

The attached patch fixes the fallback implementation of is_polymorphic; we
now use dynamic_cast's detection of polymorphic class types rather than
trying to determine if adding a virtual function makes the type larger:

  enable_if<sizeof((_Tp*)dynamic_cast<const volatile
void*>(declval<_Tp*>())) != 0, ...>

Two things of note here:
* the (_Tp*) cast is necessary to work around bugs in Clang and g++ where
we otherwise don't instantiate the dynamic_cast (filed as PR15656)
* the 'const volatile' is here to treat is_polymorphic<cv T> as true for a
polymorphic class type T -- my reading of the standard suggests this is
incorrect, but it matches our builtin __is_polymorphic and gcc

llvm-svn: 178576
 2013-04-02 21:25:06 +00:00
Howard Hinnant 70e19bd31e Some debug test cases for list. 
llvm-svn: 178565
 2013-04-02 19:53:32 +00:00
Howard Hinnant ad36fe5c19 Reference: http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20130325/077132.html 
llvm-svn: 178545
 2013-04-02 15:48:56 +00:00
Howard Hinnant 39e9506a1e Reference: http://lists.cs.uiuc.edu/pipermail/cfe-commits/Week-of-Mon-20130325/077131.html 
llvm-svn: 178544
 2013-04-02 15:46:31 +00:00
Howard Hinnant cf1dc8d39e Test case was forming the wrong limits when size_t != unsigned long. 
llvm-svn: 178370
 2013-03-29 21:22:22 +00:00
Howard Hinnant 9cb970074f Bruce Mitchener, Jr.: Port to emscripten. Fixes http://llvm.org/bugs/show_bug.cgi?id=15624. 
llvm-svn: 178354
 2013-03-29 18:27:28 +00:00
Howard Hinnant 84718fde7a The 3rd test in shrink_to_fit.pass.cpp can't possibly pass if exceptions are disabled, so #ifdef'ing out the test. 
llvm-svn: 178350
 2013-03-29 17:20:04 +00:00
Howard Hinnant 97b8ebe600 I believe debug mode for vector<T> (T != bool) is complete. If anyone sees anything more they would like to see on it, please let me know. Debug mode is activated by compiling with -D_LIBCPP_DEBUG2=1. Eventually _LIBCPP_DEBUG2 will be renamed to just _LIBCPP_DEBUG. 
llvm-svn: 178288
 2013-03-28 20:35:29 +00:00
Howard Hinnant e00e6f23d3 Fix a few warnings/errors for compiling with -fno-exceptions. 
llvm-svn: 178267
 2013-03-28 18:56:26 +00:00
Howard Hinnant b3adefc34c Second try at r178075. The llvm breakage has been fixed by r178240. 
llvm-svn: 178253
 2013-03-28 17:44:32 +00:00
Howard Hinnant a4d35ce2bf Add missing #ifndef _LIBCPP_NO_EXCEPTIONS around throw in include/thread. 
llvm-svn: 178237
 2013-03-28 15:00:04 +00:00
Daniel Dunbar 15eaebea15 Revert r178075, "Tighten up the iterator requirements ...", it breaks LLVM 
bootstrap with libc++.

llvm-svn: 178116
 2013-03-27 04:10:25 +00:00
Howard Hinnant 5a13d8dcea Tighten up the iterator requirements for the vector member templates. This is especially important for the constructors so that is_constructible<vector<T>, I, I> gives the right answer when T can not be constructed from *I. Test case included for this latter point. 
llvm-svn: 178075
 2013-03-26 21:40:54 +00:00
Howard Hinnant cd4a9fd301 Another vector debug mode test, and a static test on Allocator::value_type. This partially addresses http://llvm.org/bugs/show_bug.cgi?id=15576. 
llvm-svn: 178064
 2013-03-26 19:04:56 +00:00
Howard Hinnant 1d8a5164b4 More vector debug tests. 
llvm-svn: 178033
 2013-03-26 15:45:56 +00:00
Marshall Clow a6d24cc19d Fixed race conditions in thread tests; exposed by UBSan 
llvm-svn: 178029
 2013-03-26 15:28:33 +00:00
Howard Hinnant ea95898f29 Simply debug mode tests per Dmitri Gribenko's suggestion. 
llvm-svn: 178026
 2013-03-26 14:28:25 +00:00
Howard Hinnant d9db9f90fb Need one more swap overload for swapping two lvalue vector<bool>::reference's. 
llvm-svn: 178016
 2013-03-26 13:48:57 +00:00
Howard Hinnant ea1bbbd135 Added debug tests for indexing, pop_back and both forms of erase. Added an improved error message for erasing a single element with end(). 
llvm-svn: 177929
 2013-03-25 22:12:26 +00:00
Howard Hinnant b14037be89 Remove some erroneous code I was using to debug debug mode. 
llvm-svn: 177908
 2013-03-25 20:46:07 +00:00
Howard Hinnant 2d752fc2f9 Debug mode tests for vector::front and back. 
llvm-svn: 177904
 2013-03-25 20:31:25 +00:00
Howard Hinnant 35b3b54548 More vector::iterator debug mode tests. Run by adding to OPTIONS -D_LIBCPP_DEBUG2=1. 
llvm-svn: 177897
 2013-03-25 20:03:19 +00:00
Howard Hinnant 92bd7c0337 Debug mode: learning to crawl. I need to set up some tests that actually test that the debug mode is working, but that won't cause problems when debug mode isn't on. This is my first prototype of such a test. It should call std::terminate() because it's comparing iterators from different containers. And std::terminate() is rigged up to exit normally. If debug mode fails, and doesn't call terminate, then the program asserts. The test is a no-op if _LIBCPP_DEBUG2 is not defined or is defined to be 0. 
llvm-svn: 177892
 2013-03-25 19:29:35 +00:00
Howard Hinnant a60ae88db2 Marshall Clow found some divide-by-zero warnings with UBSan in rand's binomial_distribution test. This eliminates the divide-by-zeros and describes in comments the numerical difficulties the test is having. Each of the problematic tests are exploring edge cases of the distribution. 
llvm-svn: 177826
 2013-03-23 19:29:45 +00:00
Howard Hinnant 65a87ccdbf This is a start at making the libc++ test suite friendlier to the -fnoexceptions flag. Although this is not a complete solution, it does reduce the number of test failures on OS X from 467 to 128 on OS X when -fno-exceptions is enabled, and does not impact the number of failures at all when -fno-exceptions is not enabled. The bulk of this code was donated anonymously. 
llvm-svn: 177824
 2013-03-23 17:27:16 +00:00
Howard Hinnant 7c5b88b134 Test cleanup with respect to use of deprecated tmpnam function. Also Windows port for these tests to use _tempnam. The bulk of this patch was donated anonymously. I've tested it on OS X and accept responsibility for it. If I've broken anyone's platform by switching from tmpnam to mktemp for the generation of temporary file names, just let me know. Should be easy to fix in test/support/platform_support.h 
llvm-svn: 177755
 2013-03-22 20:05:40 +00:00
Marshall Clow c962cdf8a5 Fix buffer read overflow in money_get::do_get(). Found by UBSan 
llvm-svn: 177694
 2013-03-22 02:14:40 +00:00
Marshall Clow 1c2c986796 Fix undefined behavior in syntax_option_type::operator~ and match_flag_type::operator./a.out Found by UBSan 
llvm-svn: 177693
 2013-03-22 02:13:55 +00:00
Marshall Clow 761b5cf087 Fix bug in test; found by AddressSanitizer 
llvm-svn: 177464
 2013-03-20 00:01:48 +00:00
Howard Hinnant 4bb98d0917 Marshall Clow found this memory problem in strstream using -fsanitize=address on the test suite. 
llvm-svn: 177452
 2013-03-19 22:16:57 +00:00
Howard Hinnant 591ebe3cbb This is an optimization which produces improved launching time. There should be no functionality change. Clients should see no ABI differences. 
llvm-svn: 177443
 2013-03-19 21:34:48 +00:00
Marshall Clow 1c00ce5070 Fix bug in test; found by AddressSanitizer 
llvm-svn: 177355
 2013-03-18 23:39:36 +00:00
Marshall Clow 69e76f80e2 Removed raw references to __sun__, __FreeBSD__, __GLIBC__ and __linux__; now just check to see if they are defined. 
llvm-svn: 177310
 2013-03-18 19:34:07 +00:00
Marshall Clow 7415c8b171 Removed raw references to _MSC_VER; now just check to see if it is defined. 
llvm-svn: 177304
 2013-03-18 18:20:48 +00:00
Marshall Clow b56e8587af Removed raw references to __APPLE__; now just check to see if it is defined. 
llvm-svn: 177297
 2013-03-18 17:45:34 +00:00
Marshall Clow 91907cbe82 Removed raw references to _WIN32; now just check to see if it is defined. 
llvm-svn: 177291
 2013-03-18 17:04:29 +00:00
Howard Hinnant 5efca64dd9 This should be nothing but a load-time optimization. I'm trying to reduce load time initializers and this is a big one. No visible functionality change intended. 
llvm-svn: 177212
 2013-03-16 00:17:53 +00:00
Marshall Clow 928f65a8aa Updated link to Marshall's instructions 
llvm-svn: 177099
 2013-03-14 19:00:34 +00:00
Howard Hinnant d70e6570fd Some forward-looking and optimistic documentation. 
llvm-svn: 177093
 2013-03-14 18:37:48 +00:00
Howard Hinnant 41801f14ed This SO question: http://stackoverflow.com/questions/15344402/how-can-i-read-a-0xff-in-a-file-with-libc-istream-iterator/15347225#15347225 highlighted the lack of a cast in the implementation of std::cin. Added. I unfortunately don't have a test case to add to the suite since this bug only shows itself when using std::cin. The current testsuite setup does not have a way a good way to test std::cin. 
llvm-svn: 176822
 2013-03-11 19:53:48 +00:00
Howard Hinnant 7e4844b353 Parsing floating point numbers with very long precision was broken, and this patch fixes it. This fixes http://llvm.org/bugs/show_bug.cgi?id=15445. 
llvm-svn: 176711
 2013-03-08 19:06:24 +00:00
Howard Hinnant c60bf548c5 Albert Wong: definition for regex_traits<_CharT>::__regex_word. 
llvm-svn: 176640
 2013-03-07 19:38:08 +00:00
Howard Hinnant ead480d30a Change _LIBCPP_TYPE_VIS to use __type_visibility__(default) instead of __visibility__(default) when available. This change makes just the type_info visible so that types like vectors and strings can be used as exception objects across dylib boundaries even when hidden visibility is specified globally (at the command line), and yet this allows clients to hide the member functions of things like vector and string (with global visibility commands). 
llvm-svn: 176639
 2013-03-07 19:25:03 +00:00
Howard Hinnant 6e41256f68 No functionality change at this time. I've split _LIBCPP_VISIBLE up into two flags: _LIBCPP_TYPE_VIS and _LIBCPP_FUNC_VIS. This is in preparation for taking advantage of clang's new __type_visibility__ attribute. 
llvm-svn: 176593
 2013-03-06 23:30:19 +00:00
Howard Hinnant 65f58f3fe8 Have basic_istream::read call sgetn intead of sbumpc individual characters. This addresses http://llvm.org/bugs/show_bug.cgi?id=15427. 
llvm-svn: 176573
 2013-03-06 19:27:56 +00:00
Howard Hinnant 3fb6c6e50d Correct silly type-o. Thanks Richard. 
llvm-svn: 176568
 2013-03-06 18:16:12 +00:00
Howard Hinnant 53b9ee061f The bitset(unsigned long long) constructor was broken by the constexpr additions only on 32 bit platforms. Fixed. This addresses http://llvm.org/bugs/show_bug.cgi?id=15444. 
llvm-svn: 176559
 2013-03-06 17:30:26 +00:00
Howard Hinnant 5b22e99e77 Michael van der Westhuizen: correction to the libcxx build instructions when built with libcxxrt on Linux. 
llvm-svn: 176093
 2013-02-26 16:27:55 +00:00
Howard Hinnant a9f698009f Alexey Samsonov: #ifdefs out undefined function in static build of libc++ w/o RTTI. 
llvm-svn: 176026
 2013-02-25 15:50:36 +00:00
Howard Hinnant c0c9748c11 Constrain bind operator()() to not exist if the call is not valid. Fixes http://llvm.org/bugs/show_bug.cgi?id=15295. 
llvm-svn: 175774
 2013-02-21 18:16:55 +00:00
David Chisnall 8b6a4de64a Fix a bug in mutex_try_to_lock. This was previously trying to unlock a mutex that it didn't own, causing an assertion failure in mutex.cpp. The issue was that the unique_lock went out of scope, releasing the lock on m, then m.unlock() was called on an already-unlocked mutex. 
This change removes the spurious m.unlock() call.  

If this test was previously passing for anyone with assertions enabled, then they should investigate bugs in their pthread implementation, as pthread_unlock() should not return 0 if the mutex is currently unlocked.

llvm-svn: 175506
 2013-02-19 11:28:45 +00:00
Howard Hinnant 65af0388b9 Bruce Mitchener: Minor typo fixes. 
llvm-svn: 175274
 2013-02-15 15:37:50 +00:00
Daniel Dunbar 62b943935d [tests] Add support for a link_flags lit parameter. 
- This is useful for testing with custom ABI libraries.
 - Patch by Michael van der Westhuizen.

llvm-svn: 174997
 2013-02-12 19:28:51 +00:00
Daniel Dunbar 496f1765a2 [tests] Another batch of timeout increases. 
llvm-svn: 174902
 2013-02-11 21:04:34 +00:00
Howard Hinnant af00dc0420 Michael van der Westhuizen: Update instructions for building on Linux. 
llvm-svn: 174733
 2013-02-08 19:10:36 +00:00
Howard Hinnant 50232e50d8 Add Michael van der Westhuizen to CREDITS.TXT 
llvm-svn: 174732
 2013-02-08 19:08:06 +00:00
Howard Hinnant 0e2f292a30 Michael van der Westhuizen: update to CMake. 
llvm-svn: 174731
 2013-02-08 19:04:53 +00:00
Daniel Dunbar ceb47bb06d [tests] Another batch of timeout increases. 
llvm-svn: 174726
 2013-02-08 18:26:55 +00:00
Daniel Dunbar 76efb57666 [tests] Add back stdc macros I accidentally refactored out. 
- Patch by Michael van der Westhuizen:
--
r174404 accidentally removed stdc format, limit and constant macros from the Linux test runner logic.  This small patch re-adds the macros.

Making this change fixes the following tests on Linux:
 - depr/depr.c.headers/inttypes_h.pass.cpp
 - depr/depr.c.headers/stdint_h.pass.cpp
 - input.output/file.streams/c.files/cinttypes.pass.cpp
 - language.support/cstdint/cstdint.syn/cstdint.pass.cpp
--

llvm-svn: 174722
 2013-02-08 17:41:28 +00:00
Daniel Dunbar 577e696425 [tests] Increase a bunch of wait limits. 
- Basically I just ran the thread tests many many times on a busy machine and
   bumped the timeouts whenever I hit a test failure.

 - This is obviously subpar, but is the best I can do without the tests being
   rewritten to not depend on arbitrary timeouts.

llvm-svn: 174721
 2013-02-08 17:41:19 +00:00
Marshall Clow b6e5f854f5 Change the 'result_type' from unsigned to 'uint_fast32_t'. This eliminates truncation warnings on Linux 
llvm-svn: 174669
 2013-02-07 22:12:02 +00:00
Marshall Clow 0749262a11 Belt and suspenders when calling sysconf 
llvm-svn: 174642
 2013-02-07 18:48:09 +00:00
Marshall Clow 63f700e4d1 Another libc++ warning suppression on Linux; no functionality change 
llvm-svn: 174637
 2013-02-07 17:37:58 +00:00
Marshall Clow d58e0f5505 More libc++ warning suppression on Linux; no functionality change 
llvm-svn: 174636
 2013-02-07 17:20:56 +00:00
Howard Hinnant aba500d633 Revert accidental check-in. These changes are probably good, but premature at this point. 
llvm-svn: 174625
 2013-02-07 15:31:44 +00:00
Howard Hinnant 804f9116e5 Michael van der Westhuizen: The attached patch add support for building against libc++abi and libcxxrt to CMake builds of libc++. 
Usage (with the appropriate CC and CXX environment variables) is:
$ cmake -DLIBCXX_CXX_ABI=libcxxabi '-DLIBCXX_LIBCXXABI_INCLUDE_PATHS=/home/michael/libcxxabi/include' ../libcxx
and:
$ cmake -DLIBCXX_CXX_ABI=libcxxrt '-DLIBCXX_LIBCXXRT_INCLUDE_PATHS=/home/michael/libcxxrt/src' ../libcxx

llvm-svn: 174623
 2013-02-07 15:27:39 +00:00
Marshall Clow eb159ee704 Clean up some warnings for Linux build; No functionality change 
llvm-svn: 174611
 2013-02-07 14:22:51 +00:00
Daniel Dunbar bdd4ec71db [build/Darwin] Use the correct libc++abi reexport list. 
- This updates the build script to match the change originally in r149634, so
   that we re-export symbols from libc++abi appropriately.

llvm-svn: 174563
 2013-02-07 00:24:19 +00:00
Daniel Dunbar 6bd3374de2 [build] Detabify. 
llvm-svn: 174562
 2013-02-07 00:24:17 +00:00
Howard Hinnant d3d4356f6e Marcin Zalewski: Change the name of a template parameter in __copy_backward from _InputIterator to _BidirectionalIterator to better document the intent of the algorithm. 
llvm-svn: 174544
 2013-02-06 21:03:39 +00:00
Howard Hinnant 584a65befd Give a lot more timing latitude to some of the timing tests. Busy buildbots are hitting the timing limits too often. 
llvm-svn: 174539
 2013-02-06 20:25:56 +00:00
Daniel Dunbar 05abe9372b [tests] Infer the cxx_under_test (as clang++). 
- This is a reasonable default, and makes testing just work with no required
   parameters.

 - Add notes on all of the inferred or default values.

llvm-svn: 174538
 2013-02-06 20:24:23 +00:00
Daniel Dunbar 5178942ded [tests] Change test default to run against locally built library. 
llvm-svn: 174528
 2013-02-06 17:47:08 +00:00
Daniel Dunbar d2d614cd84 [tests] Enable use_system_lib support on Linux. 
- Patch by Michael van der Westhuizen.

llvm-svn: 174527
 2013-02-06 17:45:53 +00:00
Daniel Dunbar 434fb1f6d5 [tests] One last batch of XFAILs, for tests using new symbols added to libc++. 
- As of this commit, the test suite should now fully pass on both darwin11 and
   darwin12 when testing against either a locally built libc++ or the system libc++.

llvm-svn: 174478
 2013-02-06 00:59:06 +00:00
Daniel Dunbar 76ff8b54b3 [build] Create the link for the final library install name in the lib dir. 
- Otherwise, we never were actually linking against the right library when
   building the test applications.

llvm-svn: 174470
 2013-02-06 00:04:54 +00:00
Daniel Dunbar ba65d61767 [tests] Accept XFAIL arguments that match any part of a feature. 
llvm-svn: 174469
 2013-02-06 00:04:52 +00:00
Daniel Dunbar 36860df355 [tests] XFAIL some locale tests that don't seem to work on any Darwin. 
llvm-svn: 174459
 2013-02-05 22:51:20 +00:00
Daniel Dunbar b6354a0767 [tests] If no explicit target triple is given, try to infer it. 
llvm-svn: 174454
 2013-02-05 22:28:03 +00:00
Daniel Dunbar a563f32c6a [tests] Mark another stream input expected failure (with system libc++). 
llvm-svn: 174453
 2013-02-05 22:21:52 +00:00
Daniel Dunbar d0f05fb1b7 [tests] Mark another stream input expected failure (with system libc++). 
llvm-svn: 174452
 2013-02-05 22:10:28 +00:00
Daniel Dunbar 5ce9a5358b [tests] Mark some string.conversions expected failures (with system libc++). 
llvm-svn: 174451
 2013-02-05 22:10:27 +00:00
Daniel Dunbar 1a7f7bc6bf [tests] XFAIL a few things that require libc (?) support missing on Darwin. 
llvm-svn: 174450
 2013-02-05 22:10:25 +00:00
Daniel Dunbar d15f013dc2 [tests] Mark some istream.unformatted expected failures (with system libc++). 
llvm-svn: 174444
 2013-02-05 21:43:32 +00:00
Daniel Dunbar 582c97defa [tests] Add an available feature that combines the triple and use_system_lib. 
- This is so that we can easily write XFAIL markers for tests that are known
    to fail with versions of libc++ as were shipped with a particular triple.

llvm-svn: 174443
 2013-02-05 21:43:30 +00:00
Daniel Dunbar f51f0319bb [tests] Add support for REQUIRES and XFAIL lines in libc++ tests. 
- We parse up to the first non-empty non-comment (C++ style) line, otherwise
   the format and semantics match what is used for LLVM/Clang tests.

 - For now, the only interesting thing to test against is a user supplied
   target_triple test parameter.

llvm-svn: 174440
 2013-02-05 21:03:25 +00:00
Daniel Dunbar 8495871807 [tests] Add a 'use_system_lib' parameter. 
- This controls whether to execute against the locally built library or
   not. The default is currently True which maps to what was already being done
   by default.

 - I'd appreciate it if someone can implement the proper handling of this flag
   on linux, I no longer remember the details of its .so handling.

llvm-svn: 174404
 2013-02-05 18:03:49 +00:00
Howard Hinnant 2446649c1e Saleem Abdulrasool: If errno is defined as volatile int, the qualifier differences can cause 
template typename deductions on swap<> (used in string.cpp).  Use
decltype(errno) to replicate the type and qualifier information for holding the
errno value.  Because errno is expected to be assignable, there is no need to
use typename std::remove_const<decltype(errno)>::type to hold the value.

llvm-svn: 173172
 2013-01-22 17:26:08 +00:00
Howard Hinnant f55c0db8b5 Saleem Abdulrasool: __terminate_handler and __unexpected_handler are defined but not used when 
building against libsupc++ as the functions for which they are used are provided
by libsupc++.  Simply preprocess them away when building against libsupc++.

llvm-svn: 173165
 2013-01-22 14:48:10 +00:00
Howard Hinnant 2ac1ae6150 Saleem Abdulrasool: Ensure that __GLIBCXX__ is defined when building with libsupc++. 
llvm-svn: 173164
 2013-01-22 14:44:06 +00:00
Howard Hinnant ead15d1f95 Implement the ATOMIC_*_LOCK_FREE macros. 
llvm-svn: 173084
 2013-01-21 20:39:41 +00:00
Howard Hinnant 8d3e797444 Donated anonymously: This enables GCC 4.8.0 to build libc++. 
llvm-svn: 173060
 2013-01-21 17:26:55 +00:00
Howard Hinnant d27745e4fb Make a few tests optimization-proof. These tests were failing under -O3 because the optimizer was eliminating the call to new. 
llvm-svn: 172631
 2013-01-16 17:56:06 +00:00
Howard Hinnant 3d7eb2f806 Optimize basic_ostream::write by having it call sputn instead of sputc. 
llvm-svn: 172542
 2013-01-15 17:22:03 +00:00
Howard Hinnant 980e7e7402 Make <cmath> classification macros work with integral types. 
llvm-svn: 172461
 2013-01-14 20:56:22 +00:00
Howard Hinnant 2153d69672 Fix a race in the construction of future. This fixes http://llvm.org/bugs/show_bug.cgi?id=14934. 
llvm-svn: 172456
 2013-01-14 20:01:24 +00:00
Howard Hinnant 1afbabab32 Fix string conversions functions to throw out_of_range properly. Fixes http://llvm.org/bugs/show_bug.cgi?id=14919. 
llvm-svn: 172447
 2013-01-14 18:59:43 +00:00
Howard Hinnant 3778f27b23 Michael van der Westhuizen: Improve support for testing on Linux. Fixes http://llvm.org/bugs/show_bug.cgi?id=14892. 
llvm-svn: 172436
 2013-01-14 17:12:54 +00:00
Howard Hinnant f1e633c154 Michael van der Westhuizen: Patches for Linux. Fixes http://llvm.org/bugs/show_bug.cgi?id=14648. 
llvm-svn: 172435
 2013-01-14 17:07:27 +00:00
Howard Hinnant 8d9aec8802 Fix exception safety bug in vector::push_back 
llvm-svn: 172250
 2013-01-11 20:36:59 +00:00
Marshall Clow 4476100a2f Made test output iterators have value_type of 'void'; matches ones in library 
llvm-svn: 171980
 2013-01-09 17:20:02 +00:00
Marshall Clow 322270842c Move common header files into a 'support' directory; make 'testit' include -I to that directory; rename 'iterators.h' to 'iterator_test.h'; remove hard-coded paths to include files from more than 350 source files 
llvm-svn: 171594
 2013-01-05 03:21:01 +00:00
Howard Hinnant 114676622f atomic_bool was missing (just a typedef to atomic<bool>). 
llvm-svn: 171498
 2013-01-04 18:58:50 +00:00
Marshall Clow f8c2b82337 ...and then there was one. Only one copy of 'iterators.h' in the test tree for libc++ 
llvm-svn: 171479
 2013-01-04 18:24:04 +00:00
Marshall Clow f941359201 Removed another copy of 'iterators.h' files in libcxx/test 
llvm-svn: 171456
 2013-01-03 03:57:56 +00:00
Marshall Clow cf1589f749 Removed several more different 'iterators.h' files in libcxx/test 
llvm-svn: 171452
 2013-01-03 02:29:29 +00:00
Marshall Clow 9b726d242f Removed 7 (of 8) different 'iterators.h' files in test/localization 
llvm-svn: 171443
 2013-01-03 01:45:09 +00:00
Howard Hinnant 5b5e5336a4 Updating CREDITS.TXT 
llvm-svn: 171347
 2013-01-01 16:09:11 +00:00
NAKAMURA Takumi 43632a26a5 Update the copyright coredits -- Happy new year 2013! 
llvm-svn: 171342
 2013-01-01 10:00:19 +00:00
Howard Hinnant 861f006d3f Klaas de Vries: Fix bug in libc++'s std::string::find_first_not_of. 
llvm-svn: 171321
 2012-12-31 20:09:48 +00:00
Michael J. Spencer bb8cfd0fec [CMake] Fix c++ abi library configuration on Linux. 
You can now configure from the command line using:
-DLIBCXX_CXX_ABI=libsupc++
-DLIBCXX_LIBSUPCXX_INCLUDE_PATHS="path;path

Also documents how to build on Linux.

llvm-svn: 171316
 2012-12-31 19:34:21 +00:00
Chandler Carruth e70a813b59 Don't mark variadic functions as always inline -- they cannot in fact be 
inlined.

Patch by Saleem Abdulrasool, reviewed by Michael Spencer and Richard Smith.

llvm-svn: 171276
 2012-12-31 06:09:54 +00:00
Chandler Carruth 3036ab26e3 Add a simple .arcconfig to make using the 'arc' commandline tool and the 
phabricator code review site easier with libc++.

llvm-svn: 171275
 2012-12-31 05:59:45 +00:00
Howard Hinnant a96d74585f Remove test for eof from istreambuf_iterator constructors. It is no longer necessary and potentially violates the constructor's noexcept spec. 
llvm-svn: 171232
 2012-12-29 17:45:42 +00:00
Howard Hinnant bd037ab4ba Saleem Abdulrasool: GCC complains about the template functions as potentially not being able to be 
inlined.  These do not need to be always-inlined for ABI stability because they are not exported beyond this source due to the unnamed namespace.
Also simplified use of the Wmissing-field-initializers pragma as was done for clang.

llvm-svn: 171202
 2012-12-28 18:15:01 +00:00
Howard Hinnant 0933f5d358 Saleem Abdulrasool: Add entry to CREDITS.TXT. 
llvm-svn: 171174
 2012-12-27 23:26:52 +00:00
Howard Hinnant 6b0101acae Saleem Abdulrasool: cleanup a few more compile warnings emitted by GCC. 
llvm-svn: 171173
 2012-12-27 23:24:31 +00:00
Howard Hinnant 80a11413bb Saleem Abdulrasool: avoid hardcoding buffer lengths. 
llvm-svn: 171169
 2012-12-27 21:17:53 +00:00
Howard Hinnant 43d978e5c4 Saleem Abdulrasool: Silence warning and reduce unnecessary code in hash.cpp. 
llvm-svn: 171167
 2012-12-27 18:59:05 +00:00
Howard Hinnant 267e3e1eb8 Saleem Abdulrasool: This just rounds up a few compile warnings emitted by GCC (4.7.2). 
llvm-svn: 171165
 2012-12-27 18:46:00 +00:00
Chad Rosier 7f902715e8 Remove redundant inits. Patch by Eitan Adler. 
llvm-svn: 170967
 2012-12-22 00:12:05 +00:00
Howard Hinnant d15de653f0 Test case for http://llvm.org/bugs/show_bug.cgi?id=14670. 
llvm-svn: 170706
 2012-12-20 16:50:07 +00:00
Howard Hinnant 3b42bdd58a Hyeon-Bin Jeong: readsome() need to reset gcount to zero. This fixes http://llvm.org/bugs/show_bug.cgi?id=14670. 
llvm-svn: 170703
 2012-12-20 15:40:28 +00:00
Richard Smith e3fbbccc0f Implement std::is_base_of for the case where we don't have a compiler 
intrinsic. This relies upon the fact that overload resolution does not check
access and ambiguity for a derived-to-base conversion. This passes all
is_base_of tests in the test suite.

llvm-svn: 170662
 2012-12-20 04:20:28 +00:00
Marshall Clow 36a60721ce Added static_assert to std::get<N>(std::array) calls to catch "out of bounds" calls 
llvm-svn: 170435
 2012-12-18 16:46:30 +00:00
Howard Hinnant 3cea78ee68 Updated CREDITS.TXT 
llvm-svn: 170062
 2012-12-13 00:51:59 +00:00
Howard Hinnant 16694b5df5 Zhang Xiongpang: Add definitions for const data members. Fixes http://llvm.org/bugs/show_bug.cgi?id=14585. 
llvm-svn: 170026
 2012-12-12 21:14:28 +00:00
Howard Hinnant 9f4328b173 Modify testit to use the local headers and lib. Thanks go to Jeffrey Yasskin. 
llvm-svn: 169686
 2012-12-09 00:12:14 +00:00
Michael J. Spencer 299fc29a59 [CMake] Add support for selecting which c++ abi library to use. 
llvm-svn: 169036
 2012-11-30 21:02:29 +00:00
Richard Smith e1f363c724 Remove 'noreturn' attribute from friend declaration. This attribute will be 
inherited from the previous out-of-class declaration, and attributes on friend
function declarations are ill-formed in C++11.

llvm-svn: 168853
 2012-11-29 04:30:50 +00:00
Daniel Dunbar 7c4b853e74 tests/lit: Change test default parameters to assume local build. 
- Also, support overriding them with lit parameters.

llvm-svn: 168749
 2012-11-27 23:56:28 +00:00
Howard Hinnant 6852b55314 Fix type-o. 
llvm-svn: 168715
 2012-11-27 18:52:32 +00:00
Howard Hinnant 43a1f7b045 Remove by-chapter breakdown of what is implemented. The chart is now obsolete. 
llvm-svn: 168713
 2012-11-27 18:35:09 +00:00
Howard Hinnant f8b24cf5f7 Dimitry Andric: When using libc++ headers on FreeBSD, in combination with -std=c++98, 
-ansi or -std=c++03, the long long type is not supported.  So in this
case, several functions and types, like lldiv_t, strtoll(), are not
declared.

llvm-svn: 168610
 2012-11-26 21:18:17 +00:00
Howard Hinnant dfdf5085df istreambuf_iterator increment should call sbumpc instead of snextc. Patch 
by Kimball Thurston.  This fixes http://llvm.org/bugs/show_bug.cgi?id=14358.

llvm-svn: 168209
 2012-11-16 22:17:23 +00:00
Howard Hinnant b5c63a2e07 Restrict optimized __pad_and_output implementation detail to desired releases. 
llvm-svn: 167980
 2012-11-14 21:17:15 +00:00
Marshall Clow 497d9d2671 Change C++0x references to C++11, Fixes bug #12745 
llvm-svn: 167930
 2012-11-14 16:31:15 +00:00
Howard Hinnant 119703f984 Dimitry Andric: Silence some miscellaneous warnings. 
llvm-svn: 167493
 2012-11-06 21:55:44 +00:00
Howard Hinnant 3e2740a36c Dimitry Andric: Silence some warnings in <locale>. 
llvm-svn: 167492
 2012-11-06 21:48:33 +00:00
Howard Hinnant a01739a03a Enable the tuple interface of pair in C++03 mode. 
llvm-svn: 167491
 2012-11-06 21:42:45 +00:00
Howard Hinnant 1c8358c13c Update instructions for building and using libc++ on Mac OS 
llvm-svn: 167490
 2012-11-06 21:31:37 +00:00
Howard Hinnant cd47cbc7a4 Provide a way to disable use of extern templates in libc++. This is intended for the clients of libc++, not the libc++ build. The dylib should always contain the extern templates. To disable the client needs to put -D'_LIBCPP_EXTERN_TEMPLATE(...)=' on the command line. 
llvm-svn: 167486
 2012-11-06 21:08:48 +00:00
Howard Hinnant 66e7ed959f peek should set eofbit if sgetc() returns eof. 
llvm-svn: 167238
 2012-11-01 17:32:07 +00:00
Howard Hinnant b304811686 Richard Smith: This fixes a problem in std::is_constructible for incomplete types, and those types with a user-defined operator,(). 
llvm-svn: 167233
 2012-11-01 16:32:14 +00:00
Howard Hinnant 54d333a601 Rename uses of _ and __ because these are getting stepped on by macros from other system code. 
llvm-svn: 167038
 2012-10-30 19:06:59 +00:00
Argyrios Kyrtzidis 523623c239 Add an entry in CREDITS.TXT 
llvm-svn: 165949
 2012-10-15 17:34:53 +00:00
Howard Hinnant 6758190507 Use traits_type::to_int_type in basic_streambuf<_CharT, _Traits>::xsputn when calling overflow to correctly handle negative signed character types. This fixes http://llvm.org/bugs/show_bug.cgi?id=14074. 
llvm-svn: 165884
 2012-10-13 19:31:51 +00:00
Howard Hinnant 7ba8160360 Dimitry Andric: FreeBSD only: Add the C11 aligned_alloc to <cstdlib> and adjust the inclusion of quick_exit. 
llvm-svn: 165882
 2012-10-13 18:03:53 +00:00
Argyrios Kyrtzidis 88db3171dd Don't neglect to "return *this". 
llvm-svn: 165860
 2012-10-13 02:03:45 +00:00
Howard Hinnant f543a75be1 Holger Arnold: Correct the use and testing of __GNUC__ and __GNUC_MINOR__ in <__config>. 
llvm-svn: 165151
 2012-10-03 20:48:05 +00:00
Howard Hinnant 6e551ae1a3 Make vector::iterator and string::iterator more resilient against overly generic relational operators. 
llvm-svn: 165033
 2012-10-02 19:45:42 +00:00
Howard Hinnant 59fb5c6559 Due to a mistake on my own part, I need to burn some version numbers. This does not impact any of the implementation of libc++, and does not impact the ABI in any way. 
llvm-svn: 164832
 2012-09-28 17:42:25 +00:00
Howard Hinnant 324c084654 Bump _LIBCPP_VERSION to 1002 
llvm-svn: 164700
 2012-09-26 15:38:09 +00:00
Howard Hinnant 8e747d3671 Apply the emulated nullptr_t with constexpr. This is an unusual configuration that would take advantage of this. But it has popped up in the wild and does no harm to support it. 
llvm-svn: 164575
 2012-09-24 23:36:40 +00:00
Marshall Clow b07ddfcac7 Updating email address 
llvm-svn: 164489
 2012-09-24 14:27:10 +00:00
Bob Wilson feeec326fe Fix installheaders target to do what it did prior to r161760. rdar://12348765 
llvm-svn: 164413
 2012-09-21 20:49:54 +00:00
Howard Hinnant c43826f003 Add overflow check to tanh(complex) and reduce to finite answer. Fixes http://llvm.org/bugs/show_bug.cgi?id=13874 
llvm-svn: 164266
 2012-09-19 23:51:47 +00:00
Howard Hinnant 92b5940fbb Overloaded __pad_and_output on ostreambuf_iterator and in this overload call sputn instead of dereferencing the iterator which calls sputc. This is intended to be purely a performance optimization, especially for clients who may have overloaded the virtual function xsputn. 
llvm-svn: 164241
 2012-09-19 19:14:15 +00:00
Howard Hinnant a0bc10dca6 Align <atomic> with clang r163964 which disallows const _Atomic types. 
llvm-svn: 164004
 2012-09-16 20:33:09 +00:00
Howard Hinnant 948b8cb51b Update CREDITS.TXT 
llvm-svn: 163949
 2012-09-14 23:28:54 +00:00
Howard Hinnant aeb85680fb Dimitry Andric: many visibility fixes. Howard: Much appreciated. Can you send me a patch to CREDITS.TXT? 
llvm-svn: 163862
 2012-09-14 00:39:16 +00:00
Howard Hinnant ab303f7e47 Dimitry Andric: FreeBSD porting tweaks for PTHREAD_MUTEX_INITIALIZER and PTHREAD_COND_INITIALIZER 
llvm-svn: 163626
 2012-09-11 16:10:20 +00:00
Howard Hinnant 49713b442c Some minor mingw64 porting tweaks from Glen. 
llvm-svn: 163120
 2012-09-03 18:13:11 +00:00
Howard Hinnant aad745a024 Change sleep_for, sleep_until, and the condition_variable timed wait 
functions to protect against duration and time_point overflow.  Since
we're about to wait anyway, we can afford to spend a few more cycles on
this checking.  I purposefully did not treat the timed try_locks with
overflow checking.  This fixes
http://llvm.org/bugs/show_bug.cgi?id=13721 .  I'm unsure if the standard
needs clarification in this area, or if this is simply QOI.  The
<chrono> facilities were never intended to overflow check, but just to
not overflow if durations stayed within +/- 292 years.

llvm-svn: 162925
 2012-08-30 19:14:33 +00:00
Howard Hinnant 3320c058bf Hyeon-bin Jeong: libc++ fails to create any classes inherit from basic_ios if they 
provided char type other than char or wchar_t. It throw exception during
construction, so there is no chance to imbue own ctype.

This fixes http://llvm.org/bugs/show_bug.cgi?id=13698

llvm-svn: 162648
 2012-08-26 18:05:35 +00:00
Howard Hinnant 2e8e1d42be Update CREDITS.TXT 
llvm-svn: 162647
 2012-08-26 17:46:29 +00:00
Howard Hinnant e890ab2377 Michel Morin: My previous fix for C++03 was incomplete. 
It does not consider user-defined conversions that convert an rvalue
into an lvalue and works incorrectly for types with such a conversion
operator.
For example, 

    struct foo
    {
        operator int&();
    };

 returns false_type. 
Attached a patch that fixes this problem. 
http://llvm.org/bugs/show_bug.cgi?id=13601

llvm-svn: 162644
 2012-08-25 15:06:50 +00:00
Howard Hinnant 7b838f53a6 Wrap throw in _LIBCPP_NO_EXCEPTIONS in debug.cpp. Calls abort if can't throw an exception. Fixes http://llvm.org/bugs/show_bug.cgi?id=13082. 
llvm-svn: 162613
 2012-08-24 22:15:12 +00:00
Howard Hinnant dbbdd0c1f0 Have basic_istream seekg, putback and unget first clear eofbit. Fixes http://llvm.org/bugs/show_bug.cgi?id=13089. 
llvm-svn: 162608
 2012-08-24 22:03:03 +00:00
Howard Hinnant bad901b362 Add Hyeon-bin Jeong to CREDITS.TXT 
llvm-svn: 162604
 2012-08-24 21:45:19 +00:00
Howard Hinnant bfd96e11ed Hyeon-Bin Jeong: 1. sync() should reset it’s external buffer pointers. 
Remaining characters should be discarded once sync() called. If don’t, garbage
characters can be inserted to the front of external buffer in underflow().
Because underflow() copies remaining characters in external buffer to it’s
front. This results wrong characters insertion when seekpos() or seekoff() is
called.

this line should be inserted in sync() just before return:
__extbufnext_ = __extbufend_ = __extbuf_;

2. sync() should use length() rather than out() to calculate offset.
Reversing iterators and calling out() to calculate offset from behind is
working fine in stateless character encoding. However, in stateful encoding,
escape sequences could differ in length. As a result, out() could return wrong
length. 

For example, if we have internal buffer converted from this external sequence:
(capital letters mean escape sequence)
… a a a a B b b b b

out() produces this sequence. 
b b b b A a a a a

Because out() inserts escape sequence A rather than B, result sequence doesn't
match to external sequence. A and B could have different lengths, result offset
could be wrong value too.

length() method in codecvt is right for calculating offset, but it counts
offset from the beginning of buffer. So it requires another state member
variable to hold state before conversion.
Fixes http://llvm.org/bugs/show_bug.cgi?id=13667

llvm-svn: 162601
 2012-08-24 21:20:56 +00:00
Howard Hinnant 49a37bbb9f Fix basic_filebuf's internal buffer is shrinking when using with some codecvt. http://llvm.org/bugs/show_bug.cgi?id=13602 
llvm-svn: 162585
 2012-08-24 20:37:00 +00:00
Howard Hinnant 45c03a8f8d Fixed order of calling use_facet vs setbuf in basic_filebuf default constructor. 
llvm-svn: 162571
 2012-08-24 18:06:47 +00:00
Howard Hinnant cc27317a62 basic_filebuf needs to delay obtaining a codecvt facet from the global locale to give the client a chance to imbue the proper locale. Fixes http://llvm.org/bugs/show_bug.cgi?id=13663. 
llvm-svn: 162567
 2012-08-24 16:52:47 +00:00
Marshall Clow c740e05316 Fix a typo in the docs 
llvm-svn: 162335
 2012-08-22 00:57:11 +00:00
Howard Hinnant a3b7a802cc In C++03 mode add an explicit conversion from int to the emulated class enum. Fixes a problem reported by C. Bergström. 
llvm-svn: 162189
 2012-08-19 17:14:47 +00:00
Howard Hinnant e4b2a743b8 Patch contributed by Dev Dude for mingw64 port. 
llvm-svn: 162188
 2012-08-19 15:13:16 +00:00
Howard Hinnant a0b42cacbf Apply patches supplied by Michel Morin in http://llvm.org/bugs/show_bug.cgi?id=13601 to correct bugs in is_convertible for the case that the intrinsic __is_convertible_to is not available. 
llvm-svn: 162111
 2012-08-17 17:54:11 +00:00
Howard Hinnant 7ee271360d Consistently label __bit_array as a struct, not a class. 
llvm-svn: 162108
 2012-08-17 17:10:18 +00:00
Howard Hinnant 700de17aea Remove obsolete do-installhdrs target (again). 
llvm-svn: 161761
 2012-08-13 16:32:15 +00:00
Howard Hinnant 76bd025868 Remove obsolete do-installhdrs target. 
llvm-svn: 161760
 2012-08-13 16:17:12 +00:00
Howard Hinnant 4179da6a6a Patch constributed by Michel Moren in http://llvm.org/bugs/show_bug.cgi?id=13592 . Fixes is_convertible<From, To> when To is an abstract type. 
llvm-svn: 161755
 2012-08-13 12:29:17 +00:00
Howard Hinnant d79842c2bf Change size of reference count field in __libcpp_nmstr from 32 bits to 64 bits for 64 bit targets. This is controls the data layout of all exceptions defined in <stdexcept>. This aligns the ABI with that of gcc-4.2. 
llvm-svn: 161497
 2012-08-08 16:17:31 +00:00
Howard Hinnant 1237dccaea std::equal operating on non-const __bit_iterators was not working. This fixes it. 
llvm-svn: 161309
 2012-08-05 21:43:11 +00:00
Howard Hinnant 73984be057 Andrew Morrow: The current CMake setup for libc++ incorrectly uses the variable 
LLVM_ENABLE_ASSERTIONS instead of LIBCXX_ENABLE_ASSERTIONS when
figuring out what _DEBUG/NDEBUG defines to set. It also tries to test
the non-existent variable 'uppercase_CMAKE_BUILD_TYPE', which the top
level LLVM CMakeLists.txt sets up, but which the top level libc++
CMakeLists.txt currently does not. Changing the variable name tested
and creating the uppercase release name variable allows libc++ to
honor the LIBCXX_ENABLE_ASSERTIONS option correctly.

llvm-svn: 161308
 2012-08-05 17:37:39 +00:00
Howard Hinnant c51171e0e9 Loosen up the timing requirements on 4 more tests. 
llvm-svn: 161289
 2012-08-04 00:47:42 +00:00
Howard Hinnant aca09de378 Performance tweaking rotate. 
rotate is a critical algorithm because it is often used by other algorithms,
both std and non-std.  The main thrust of this optimization is a specialized
algorithm when the 'distance' to be shifted is 1 (either left or right).  To my
surprise, this 'optimization' was not effective for types like std::string.
std::string favors rotate algorithms which only use swap.  But for types like
scalars, and especially when the sequence is random access, these new
specializations are a big win.  If it is a vector<size_t> for example, the
rotate is done via a memmove and can be several times faster than the gcd
algorithm.

I'm using is_trivially_move_assignable to distinguish between types like int and
types like string.  This is obviously an ad-hoc approximation, but I haven't
found a case where it doesn't give good results.

I've used a 'static if' (with is_trivially_move_assignable) in three places. 
Testing with both -Os and -O3 showed that clang eliminated all code not be
executed by the 'static if' (including the 'static if' itself).

llvm-svn: 161247
 2012-08-03 18:01:20 +00:00
Howard Hinnant 0cbea7fa90 Andrew Morrow: The attached patch updates the initialization of the 'struct tm' in 
__time_get_storage<char> to match the initialization behavior in
__time_get_storage<wchar>. Without the initialization, valgrind
reports errors in the subsequent calls to strftime_l.

llvm-svn: 161196
 2012-08-02 18:44:17 +00:00
Howard Hinnant fb2f0a5e01 Andrew Morrow: There are two tests under test/utilities/memory that heap allocate two 
integers which remain unused and are subsequently leaked, so the test
fail when run under valgrind. Unless I'm overlooking a subtle reason
why they are needed I think they can be removed, allowing these tests
to pass under valgrind. The attached patch removes the variables. If
there is a reason for them to exist, I can change this to just delete
them at the end of the test.

llvm-svn: 161195
 2012-08-02 18:39:48 +00:00
Howard Hinnant c1a45fb70f Andrew Morrow: The attached patch updates the lit.config for libc++ unit tests so 
that the valgrind configuration passed to lit.py is used to run .pass
tests.

llvm-svn: 161193
 2012-08-02 18:36:47 +00:00
Howard Hinnant 4df0a6adf6 Andrew Morrow: Among the various libc++ tests that currently don't pass on Linux are 
localization/locale.categories/category.collate/category.ctype/locale.ctype.byname/is_1.pass.cpp
and scan_is.pass.cpp. The tests fail when the character class being
tested is compound, like ctype_base::alnum or ctype_base::graph,
because the existing series of conditionals in do_is an do_scan_is
will abort too early. For instance, if the character class being
tested is alnum, and the character is numeric, do_is will return false
because iswalpha_l will return false, 'result' becomes false, and the
'true' result from the later call to iswdigit_l ends up being ignored
. A similar problem exists in do_scan_is.

llvm-svn: 161192
 2012-08-02 18:35:07 +00:00
Howard Hinnant d3673eb4e1 Andrew Morrow: The attached patch is an attempt to implement 
std:🧵:hardware_concurrency for platforms that don't offer
sysctl, but do provide a POSIX sysconf and _SC_NPROCESSORS_ONLN.

llvm-svn: 161190
 2012-08-02 18:17:49 +00:00
Howard Hinnant a30af5f7cd Andrew Morrow: This patch fixes 
test/input.output/iostream.format/output.streams/ostream.formatted/ostream.inserters.arithmetic/pointer.pass.cpp
to accept '(nil)' as a valid representation for NULL so that the test
passes on Linux. The same thing is already done in some other tests,
like in /test/localization/locale.categories/category.numeric/locale.nm.put/facet.num.put.members/put_pointer.pass.cpp.

llvm-svn: 161188
 2012-08-02 18:12:06 +00:00
Howard Hinnant 8eb04fe53c Andrew Morrow: Attached is a writeup of the current state of the libc++ test suite on Linux. 
There are a few tests that are listed as failing here for which I have
a patch in the works. I'll be sending those along soon. There are
others where I know what is going on but don't yet have a solution,
and I've included some notes for those. Several still need to be
investigated, mostly in localization and the regex test suite. I think
that many of these failures are due to locale implementation
variations that make the expected test results not match the actual
results. I'm not sure what the best way to make the tests accomodate
this sort of variation might be.

The failures in the unique_ptr test suite are very new and are caused
by a clang crash which I've not yet looked into.

llvm-svn: 161079
 2012-07-31 21:30:28 +00:00
Howard Hinnant 088e37c77a Despite my pathological distrust of spin locks, the number just don't lie. I've put a small spin in __sp_mut::lock() on std::mutex::try_lock(), which is testing quite well. In my experience, putting in a yield for every failed iteration is also a major performance booster. This change makes one of the performance tests I was using (a highly contended one) run about 20 times faster. 
llvm-svn: 160967
 2012-07-30 17:13:21 +00:00
Howard Hinnant 355b660a4b Updated status 
llvm-svn: 160959
 2012-07-30 13:59:36 +00:00
Howard Hinnant fe9fe2dedc Updated the complete by-chapter graph 
llvm-svn: 160943
 2012-07-30 02:29:34 +00:00
Howard Hinnant d77851e837 Implement [util.smartptr.shared.atomic]. This is the last unimplemented 
section in libc++.  This requires a recompiled dylib.  Failure to rebuild
the dylib will result in a link-time error if and only if the functions from
[util.smartptr.shared.atomic] are used.

The implementation is not lock free.  After considerable thought, I know of no
way to make the implementation lock free.  Ideas welcome along that front.  But
changing the ABI of shared_ptr is not on the table at this point.

The mutex used to lock these function is encapsulated by std::__sp_mut.  The
only thing the client knows about std::__sp_mut is that it has a void* data
member, can't be constructed, and has lock and unlock members.  Within the
binary __sp_mut is currently implemented as a pointer to a std::mutex.  That can
change in the future without disturbing the ABI (as long as sizeof(__sp_mut)
remains constant.

I specifically did not make __sp_mut a spin lock as I have a pathological
distrust of spin locks.  Testing on OS X reveals that the use of std::mutex in
this role is not a large performance penalty as long as the contention for the
mutex is low (more likely to get the lock than to have to wait).  In the future
we can still make __sp_mut a spin lock if that is what is desired (without ABI
damage).

The dylib contains 16 __sp_mut's to be chosen based on the hash of the address
of the shared_ptr.  The constant 16 is a ball-park reasonable space/time
tradeoff.

std::hash<T*> was changed to call __murmur2_or_cityhash, instead of the identity
function.  I had thought we had already done this, but I was mistaken.

All of this is under #if __has_feature(cxx_atomic) even though the
implementation is not lock free, because the signatures require access to
std::memory_order, which is currently available only under
__has_feature(cxx_atomic).

llvm-svn: 160940
 2012-07-30 01:40:57 +00:00
Howard Hinnant c2e9354004 Update CREDITS.TXT 
llvm-svn: 160812
 2012-07-26 20:22:37 +00:00
Howard Hinnant c904ad4518 Patch by Andrew C. Morrow: shims to work around macroized getc and putc on linux. On my eglibc 2.13 based Debian system 'getc' is a macro defined in 
/usr/include/stdio.h. This decision to make it a macro doesn't seem to
be guarded by any feature test macro as far as I can see.

llvm-svn: 160799
 2012-07-26 20:01:13 +00:00
Howard Hinnant dce0696a36 Patch by Andrew C. Morrow: Conditionally include cxxabi.h in new.cpp and typeinfo.cpp. Both new.cpp and typeinfo.cpp have code that is conditionally compiled 
based on the LIBCXXRT and _LIBCPPABI_VERSION defines, but those files
do not currently include <cxxabi.h> in the non __APPLE__ case. The
attached patch updates those files so that for non __APPLE__ builds
<cxxabi.h> is included if available or if LIBCXXRT is set. I'm
modeling this on the recent updates to exception.cpp.

llvm-svn: 160790
 2012-07-26 17:42:39 +00:00
Howard Hinnant a1d07d57a7 <algorithm> no longer needs to include <cstdlib>, but can get away with just <cstddef>. This was brought to my attention by Salvatore Benedetto in his port to a bare-metal coretex-m3. This exposed two test bugs where an explicit #include <cstdlib> was needed. 
llvm-svn: 160786
 2012-07-26 17:09:09 +00:00
Howard Hinnant 6a03f169db locale::id really needs to be constructed at compile time. 
llvm-svn: 160785
 2012-07-26 16:14:37 +00:00
Richard Smith 535a86c3f8 libc++: switch from using _ATTRIBUTE(noreturn) (which conflicts with a 
platform-provided macro on some systems) to _LIBCPP_NORETURN.

llvm-svn: 160773
 2012-07-26 02:04:22 +00:00
Howard Hinnant 9d772d17b3 Apple LWG 2067: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3318.html#2067 . This is the only actionable change that has been made to the C++ draft since C++11. In general it has not been decided exactly how libc++ will track changes made to C++11. New features and design changes will probably be #ifdef'd, especially if they are not backwards compatible. Defects and 'dumb mistakes' are more likely to just be put in. Decisions on telling one from the other will be made on a case by case basis. 
llvm-svn: 160608
 2012-07-21 19:34:12 +00:00
Howard Hinnant a4820bc4d5 noexcept applied to <future>. 
llvm-svn: 160607
 2012-07-21 17:46:55 +00:00
Howard Hinnant 36101a5b0a noexcept applied to <thread>. 
llvm-svn: 160606
 2012-07-21 16:50:47 +00:00
Howard Hinnant 45c663db4e noexcept applied to <condition_variable>. 
llvm-svn: 160605
 2012-07-21 16:32:53 +00:00
Howard Hinnant 02e610ef34 noexcept and constexpr applied to <mutex>. 
llvm-svn: 160604
 2012-07-21 16:13:09 +00:00
Howard Hinnant 42be98ab54 noexcept and constexpr applied to <regex>. 
llvm-svn: 160594
 2012-07-21 01:31:58 +00:00
Howard Hinnant 5d926bf1b8 noexcept and constexpr applied to <ios>. 
llvm-svn: 160593
 2012-07-21 01:03:40 +00:00
Howard Hinnant bf882037be noexcept applied to <valarray>. 
llvm-svn: 160592
 2012-07-21 00:51:28 +00:00
Howard Hinnant f4e11de8e8 constexpr applied to <complex>. 
llvm-svn: 160585
 2012-07-20 22:18:27 +00:00
Howard Hinnant 00586de436 noexcept applied to <random>. 
llvm-svn: 160579
 2012-07-20 21:44:27 +00:00
Howard Hinnant 11ac39722c Relax the tolerances on some timing tests. 
llvm-svn: 160566
 2012-07-20 19:48:05 +00:00
Howard Hinnant 8e882dcb2e noexcept applied to <iterator>. 
llvm-svn: 160565
 2012-07-20 19:36:34 +00:00
Howard Hinnant 397717b7c8 constexpr applied to <array>. 
llvm-svn: 160564
 2012-07-20 19:20:49 +00:00
Howard Hinnant 931644bfec constexpr applied to <string>. 
llvm-svn: 160563
 2012-07-20 19:09:12 +00:00
Howard Hinnant 14c56f6c4a Further tweaks on relaxing complete type checking for function. 
llvm-svn: 160562
 2012-07-20 18:56:07 +00:00
Howard Hinnant 07ce90bb9d Jean-Daniel : clang now supports all required type_traits. 
llvm-svn: 160510
 2012-07-19 15:59:52 +00:00
Howard Hinnant 51eb2adb2d Jean-Daniel updates the libc++ index page to reflect not so recent changes in C++ standard status. 
llvm-svn: 160509
 2012-07-19 15:57:51 +00:00
Howard Hinnant 403845ba75 Relax the complete-type checks that are happening under __invokable<Fp, Args...> to only check Fp, and not Args... . This should be sufficient to give the desired high quality diagnostics under both bind and function. And this allows a test reported by Rich E on cfe-dev to pass. Tracked by <rdar://problem/11880602>. 
llvm-svn: 160285
 2012-07-16 16:17:34 +00:00
Howard Hinnant c033115394 Applied constexpr to <chrono>. 
llvm-svn: 160184
 2012-07-13 19:17:27 +00:00
Howard Hinnant 9146984e73 Fixed a bug in wstring_convert concerning zero-length inputs. Thanks to Jonathan Coxhead for reporting this bug. 
llvm-svn: 160136
 2012-07-12 18:07:41 +00:00
Richard Smith ceefe51364 Teach libc++ to check for libc++abi and use its features if they're available. 
llvm-svn: 160038
 2012-07-11 09:35:47 +00:00
Howard Hinnant 38b99b025c Add test for self-referencing emplace test. 
llvm-svn: 159921
 2012-07-09 02:47:43 +00:00
Howard Hinnant 598f702b04 Change emplace for vector and deque to create the temporary (when necessary) before any changes to the container are made. Nikolay Ivchenkov deserves the credit for pushing this problem and the solution for it. 
llvm-svn: 159918
 2012-07-08 23:23:04 +00:00
Howard Hinnant c0937e8add Appy constexpr to <memory>. Picked up a few missing noexcepts as well. 
llvm-svn: 159902
 2012-07-07 20:56:04 +00:00
Howard Hinnant bfa7990b5a Apply constexpr to the mutex constructor. As a conforming extension, apply constexpr to the condition_variable constructor. These are important because it enables the compiler to construct these types at compile time, even though the object will be non-const. Since they are constructed at compile time, there is no chance of a data race before they are constructed. 
llvm-svn: 159901
 2012-07-07 20:01:52 +00:00
Howard Hinnant eeac9fcfb7 Apply constexpr to <bitset>. 
llvm-svn: 159899
 2012-07-07 17:04:52 +00:00
Howard Hinnant 8a9ee14803 Apply noexcept to tuple. 
llvm-svn: 159865
 2012-07-06 21:53:48 +00:00
Howard Hinnant a0f4c45c38 As a conforming extension give tuple a noexcept default constructor conditionalized on its held types. 
llvm-svn: 159858
 2012-07-06 20:50:27 +00:00
Howard Hinnant a62ebe043e Give tuple a constexpr default constructor. 
llvm-svn: 159857
 2012-07-06 20:39:45 +00:00
Howard Hinnant 9f06558f86 New Windows libc++ test results provided by Ruben Van Boxem. 
llvm-svn: 159852
 2012-07-06 19:35:31 +00:00
Howard Hinnant 9d6d1c6860 Apply noexcept to those functions implemented in <cstdlib> as a conforming extension. 
llvm-svn: 159850
 2012-07-06 19:16:56 +00:00
Howard Hinnant 9c14b75a37 Apply noexcept to those functions implemented in <cmath> as a conforming extension. 
llvm-svn: 159849
 2012-07-06 19:13:50 +00:00
Howard Hinnant 227001d12e Add noexcept test for offsetof macro per [support.types]/p4. 
llvm-svn: 159846
 2012-07-06 18:39:01 +00:00
Howard Hinnant 4cb38a82a2 This commit establishes a new bucket_count policy in the unordered containers: The policy now allows a power-of-2 number of buckets to be requested (and that request honored) by the client. And if the number of buckets is set to a power of 2, then the constraint of the hash to the number of buckets uses & instead of %. If the client does not specify a number of buckets, then the policy remains unchanged: a prime number of buckets is selected. The growth policy is that the number of buckets is roughly doubled when needed. While growing, either the prime, or the power-of-2 strategy will be preserved. There is a small run time cost for putting in this switch. For very cheap hash functions, e.g. identity for int, the cost can be as high as 18%. However with more typical use cases, e.g. strings, the cost is in the noise level. I've measured cases with very cheap hash functions (int) that using a power-of-2 number of buckets can make look up about twice as fast. However I've also noted that a power-of-2 number of buckets is more susceptible to accidental catastrophic collisions. Though I've also noted that accidental catastrophic collisions are also possible when using a prime number of buckets (but seems far less likely). In short, this patch adds an extra tuning knob for those clients trying to get the last bit of performance squeezed out of their hash containers. Casual users of the hash containers will not notice the introduction of this tuning knob. Those clients who swear by power-of-2 hash containers can now opt-in to that strategy. Clients who prefer a prime number of buckets can continue as they have. 
llvm-svn: 159836
 2012-07-06 17:31:14 +00:00
Howard Hinnant 6b45660f14 link to Marshall's notes. 
llvm-svn: 159791
 2012-07-06 00:39:38 +00:00
Nuno Lopes 6317bfb26a mark operator new(std::nothrow) as noalias (aka __attribute__((malloc)) 
llvm-svn: 159359
 2012-06-28 16:47:34 +00:00