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* Add include for 'test_macros.h' to all the tests that were missing them. ↵Marshall Clow2019-05-316-0/+12
| | | | | | Thanks to Zoe for the (big, but simple) patch. NFC intended. llvm-svn: 362252
* Support tests in freestandingJF Bastien2019-02-0426-26/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Freestanding is *weird*. The standard allows it to differ in a bunch of odd manners from regular C++, and the committee would like to improve that situation. I'd like to make libc++ behave better with what freestanding should be, so that it can be a tool we use in improving the standard. To do that we need to try stuff out, both with "freestanding the language mode" and "freestanding the library subset". Let's start with the super basic: run the libc++ tests in freestanding, using clang as the compiler, and see what works. The easiest hack to do this: In utils/libcxx/test/config.py add: self.cxx.compile_flags += ['-ffreestanding'] Run the tests and they all fail. Why? Because in freestanding `main` isn't special. This "not special" property has two effects: main doesn't get mangled, and main isn't allowed to omit its `return` statement. The first means main gets mangled and the linker can't create a valid executable for us to test. The second means we spew out warnings (ew) and the compiler doesn't insert the `return` we omitted, and main just falls of the end and does whatever undefined behavior (if you're luck, ud2 leading to non-zero return code). Let's start my work with the basics. This patch changes all libc++ tests to declare `main` as `int main(int, char**` so it mangles consistently (enabling us to declare another `extern "C"` main for freestanding which calls the mangled one), and adds `return 0;` to all places where it was missing. This touches 6124 files, and I apologize. The former was done with The Magic Of Sed. The later was done with a (not quite correct but decent) clang tool: https://gist.github.com/jfbastien/793819ff360baa845483dde81170feed This works for most tests, though I did have to adjust a few places when e.g. the test runs with `-x c`, macros are used for main (such as for the filesystem tests), etc. Once this is in we can create a freestanding bot which will prevent further regressions. After that, we can start the real work of supporting C++ freestanding fairly well in libc++. <rdar://problem/47754795> Reviewers: ldionne, mclow.lists, EricWF Subscribers: christof, jkorous, dexonsmith, arphaman, miyuki, libcxx-commits Differential Revision: https://reviews.llvm.org/D57624 llvm-svn: 353086
* Update more file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-1926-104/+78
| | | | | | | | | | | | | | | | | | to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
* [libcxx] [test] Add missing <stdexcept> in several tests.Billy Robert O'Neal III2018-08-084-0/+4
| | | | | | Reviewed as https://reviews.llvm.org/D50420 llvm-svn: 339209
* [libcxx] [test] Fix MSVC warnings, null pointer deref.Stephan T. Lavavej2017-12-132-4/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | test/std/algorithms/alg.modifying.operations/alg.generate/generate_n.pass.cpp Silence MSVC warning C4244. This is expected when passing floating-point values for size. test/std/utilities/template.bitset/bitset.members/to_ullong.pass.cpp test/std/utilities/template.bitset/bitset.members/to_ulong.pass.cpp Avoid MSVC "warning C4293: '<<': shift count negative or too big, undefined behavior". MSVC sees (1ULL << N) and warns - being guarded by const bool canFit is insufficient. A small change to the code avoids the warning without the need for a pragma. Remove a spurious printf() declaration from to_ullong.pass.cpp. Change ULL to UL in to_ulong.pass.cpp. The ULL suffix was probably copy-pasted. test/std/utilities/tuple/tuple.general/ignore.pass.cpp Use LIBCPP_STATIC_ASSERT for consistency with other files. test/support/container_test_types.h Fix a null pointer dereference, found by MSVC /analyze warning C6011 "Dereferencing NULL pointer 'm_expected_args'." Fixes D41030. llvm-svn: 320535
* Fix problems with r'890 when building on machines where sizeof(size_t) != ↵Marshall Clow2017-11-272-6/+3
| | | | | | sizeof(unsigned long long) and C++03 llvm-svn: 319106
* Fix PR#35438 - bitset constructor does not zero unused bitsMarshall Clow2017-11-272-1/+20
| | | | llvm-svn: 319074
* [libcxx] [test] Suppress MSVC's /analyze warning C6294 in a more ↵Stephan T. Lavavej2017-05-0518-16/+88
| | | | | | | | fine-grained manner. Fixes D32926. llvm-svn: 302325
* [libcxx] [test] Fix MSVC warnings C4127 and C6326 about constants.Stephan T. Lavavej2017-01-188-10/+26
| | | | | | | | | | | | | | | | | | 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
* Protect bitset tests under libcpp-no-exceptionsRoger Ferrer Ibanez2016-11-104-44/+84
| | | | | | | | | | | | | Bitset tests feature a sequence of tests of increasing bitset sizes, but these tests rely on exceptions when the bitset size is less than 50 elements. This change adds a flag to tell whether a test should throw. If it must throw it will be skipped under no-exceptions. Differential Revision: https://reviews.llvm.org/D26140 llvm-svn: 286474
* Mark LWG issue 2250 as completeEric Fiselier2016-06-023-13/+0
| | | | llvm-svn: 271475
* Guard Clang and GCC specific pragmas. Patch from STL@microsoft.comEric Fiselier2016-04-2819-0/+38
| | | | llvm-svn: 267836
* Make it possible to build a no-exceptions variant of libcxx.Asiri Rathnayake2015-11-104-0/+4
| | | | | | | | | | | | Fixes a small omission in libcxx that prevents libcxx being built when -DLIBCXX_ENABLE_EXCEPTIONS=0 is specified. This patch adds XFAILS to all those tests that are currently failing on the new -fno-exceptions library variant. Follow-up patches will update the tests (progressively) to cope with the new library variant. Change-Id: I4b801bd8d8e4fe7193df9e55f39f1f393a8ba81a llvm-svn: 252598
* Move test into test/std subdirectory.Eric Fiselier2014-12-2026-0/+1396
llvm-svn: 224658
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