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9 Commits

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
3d26ee2921 [libcxx] [test] Fix MSVC warnings C4127 and C6326 about constants. 
MSVC has compiler warnings C4127 "conditional expression is constant" (enabled
by /W4) and C6326 "Potential comparison of a constant with another constant"
(enabled by /analyze). They're potentially useful, although they're slightly
annoying to library devs who know what they're doing. In the latest version of
the compiler, C4127 is suppressed when the compiler sees simple tests like
"if (name_of_thing)", so extracting comparison expressions into named
constants is a workaround. At the same time, using std::integral_constant
avoids C6326, which doesn't look at template arguments.

test/std/containers/sequences/vector.bool/emplace.pass.cpp
Replace 1 == 1 with true, which is the same as far as the library is concerned.

Fixes D28837.

llvm-svn: 292432
 2017-01-18 20:09:56 +00:00
Eric Fiselier
45b7b44867 Implement LWG 2148: Make non-enum default hash specialization well-formed 
Summary:
This patch removes the static_assert for non-enum types in the primary hash template. Instead non-enum types create a hash<T> specialization that is not constructible nor callable.

See also:
  * http://cplusplus.github.io/LWG/lwg-active.html#2543
  * https://llvm.org/bugs/show_bug.cgi?id=28917

Reviewers: mclow.lists, EricWF

Subscribers: mehdi_amini, cfe-commits

Differential Revision: https://reviews.llvm.org/D23331

llvm-svn: 278300
 2016-08-10 22:45:26 +00:00
Eric Fiselier
f2f2a6395f Replace __cplusplus comparisons and dialect __has_feature checks with TEST_STD_VER. 
This is a huge cleanup that helps make the libc++ test suite more portable.
Patch from STL@microsoft.com. Thanks STL!

llvm-svn: 272716
 2016-06-14 21:31:42 +00:00
Eric Fiselier
d04c685168 Remove trailing whitespace in test suite. Approved by Marshall Clow. 
llvm-svn: 271435
 2016-06-01 21:35:39 +00:00
Marshall Clow
eb9bfac876 Cleaning up the test suite; remove some includes of non-standard file <__config> 
llvm-svn: 226411
 2015-01-18 19:05:51 +00:00
Marshall Clow
6855c93ce9 Missed a typename 
llvm-svn: 225408
 2015-01-07 22:26:48 +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