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3 Commits

Author SHA1 Message Date
Eric Fiselier e7154709e0 Implement C++17 std::sample. 
This patch implements the std::sample function added to C++17 from LFTS. It
also removes the std::experimental::sample implementation which now forwards
to std::sample.

llvm-svn: 279948
 2016-08-28 22:14:37 +00:00
Eric Fiselier 040411762f Mark LWG 2716 as complete - shuffle and sample disallows lvalue URNGs. 
Libc++'s implementation of shuffle and sample already support lvalue and rvalue
RNG's. This patch adds tests for both categories and marks the issue as complete.

This patch also contains drive-by change for std::experimental::sample which
improves the diagnostics produced when the correct iterator categories are
not supplied.

llvm-svn: 279947
 2016-08-28 21:55:00 +00:00
Evgeniy Stepanov 732e2681c7 Implement std::experimental::sample. 
Following specification in "C++ Extensions for Library Fundamentals":
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html#alg.random.sample

llvm-svn: 237264
 2015-05-13 16:55:41 +00:00