Howard Hinnant
74f4da7219
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).
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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.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@180945 91177308-0d34-0410-b5e6-96231b3b80d8
2013-05-02 20:18:43 +00:00
Howard Hinnant
b64f8b07c1
license change
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16 22:09:02 +00:00
Howard Hinnant
611fdaf229
Still working on the basic design of <atomic>. I'm working towards a system by which the compiler only needs to define the strongest intrinsics it can. Weaker atomics in the library automatically try stronger and stronger variants, picking the weakest compiler intrinsic available. If no compiler intrinsics are available for a given operation, the library locks a mutex and does the job. Better documentation to follow...
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@115538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-04 18:52:54 +00:00
Howard Hinnant
79101aec3a
[atomics.flag] completed. Initialization is not working on clang and can't be made to work without defaulted default constructors.
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@115207 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-30 21:05:29 +00:00
Howard Hinnant
767ae2b483
Contemplating this <atomic> reorganization...
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@115087 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29 21:20:03 +00:00
Howard Hinnant
c260b06366
Didn't mean to commit that one
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@115058 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29 18:33:45 +00:00
Howard Hinnant
ed760f40b7
Wrestling with the slowly dawning realization that <atomic> isn't implementable on any compiler at my disposal...
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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@115054 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-29 18:13:54 +00:00
