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Author SHA1 Message Date
Marshall Clow 7c803385a7 Implement P0599: 'noexcept for hash functions'. Fix a couple of hash functions (optional<T> and unique_ptr<T>) which were mistakenly marked as 'noexcept'. Reviewed as https://reviews.llvm.org/D31234 
llvm-svn: 298573
 2017-03-23 02:40:28 +00:00
Stephan T. Lavavej 105a3061f7 [libcxx] [test] Fix size_t-to-int truncation warnings in syserr.hash. 
After r289363, these tests were triggering MSVC x64 warning C4267
"conversion from 'size_t' to 'int', possible loss of data" by taking 0, 2, and 10
as std::size_t, then constructing error_code(int, const error_category&) or
error_condition(int, const error_category&) from that (N4618 19.5.3.2
[syserr.errcode.constructors]/3, 19.5.4.2 [syserr.errcondition.constructors]/3).

The fix is simple: take these ints as int, pass them to the int-taking
constructor, and perform a value-preserving static_cast<std::size_t>
when comparing them to `std::size_t result`.

Fixes D27691.

llvm-svn: 289512
 2016-12-13 01:54:58 +00:00
Eric Fiselier c71bd55b5d Enable the -Wsign-compare warning to better support MSVC 
llvm-svn: 289363
 2016-12-11 05:31:00 +00:00
Eric Fiselier 78f8ce484f Improve portability of hash tests. Patch from STL@microsoft.com 
llvm-svn: 272744
 2016-06-15 01:42:35 +00:00
Marshall Clow d95510ebba libc++ implements its' hash objects as deriving from std::unary_function, and the tests test for that. STL @ MS pointed out that the standard doesn't requie these objects to derive from unary_function, and so the tests should not require that either. Change the tests to check for the embedded typedefs - which ARE required. No change to the library. 
llvm-svn: 225403
 2015-01-07 21:53:23 +00:00
Eric Fiselier 5a83710e37 Move test into test/std subdirectory. 
llvm-svn: 224658
 2014-12-20 01:40:03 +00:00