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* Implement LWG issue 2720. Replace perms::resolve_symlinks with ↵Eric Fiselier2016-06-212-10/+14
| | | | | | | | | | | | | | | perms::symlink_nofollow. This changes how filesystem::permissions(p, perms) handles symlinks. Previously symlinks were not resolved by default instead only getting resolved when "perms::resolve_symlinks" was used. After this change symlinks are resolved by default and perms::symlink_nofollow must be given to change this. This issue has not yet been moved to Ready status, and I will revert if it doesn't get moved at the current meeting. However I feel confident that it will and it's nice to have implementations when moving issues. llvm-svn: 273328
* Implement LWG issue 2725. The issue should move this meetingEric Fiselier2016-06-211-0/+4
| | | | llvm-svn: 273325
* Fix bugs in last_write_time implementation.Eric Fiselier2016-06-191-23/+89
| | | | | | | | | | | | | | | * Fix passing a negative number as either tv_usec or tv_nsec. When file_time_type is negative and has a non-zero sub-second value we subtract 1 from tv_sec and make the sub-second duration positive. * Detect and report when 'file_time_type' cannot be represented by time_t. This happens when using large/small file_time_type values with a 32 bit time_t. There is more work to be done in the implementation. It should start to use stat's st_mtim or st_mtimeval if it's provided as an extension. That way we can provide a better resolution. llvm-svn: 273103
* Fix 3 bugs in filesystem tests and implementation.Eric Fiselier2016-06-183-40/+25
| | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the following bugs, all of which were discovered while testing a 32 bit build on a 64 bit machine. * path.itr/iterator.pass.cpp has undefined behavior. 'path::iterator' stashes the value of the element inside the iterator. This violates the BiDirIterator requirements but is allowed for path::iterator. However this means that using reverse_iterator<path::iterator> has undefined behavior because it assumes that 'Iter tmp = it; return *tmp' will not create a dangling reference. However it does, and this caused this particular test to fail. * path.native.obs/string_alloc.pass.cpp tested the SSO with a long string. On 32 bit builds std::wstring only has the SSO for strings of size 2. The test was using a string of size 4. * fs.op.space/space.pass.cpp had overflows while calculating the expected values. The fix here is to convert the statvfs data members to std::uintmax_t before multiplying them. The internal implementation already does this but the tests needed to do it as well. llvm-svn: 273078
* Add additional tests in an attempt to diagnose ARM test failures.Eric Fiselier2016-06-183-12/+63
| | | | | | | | | | | | | | | | | | | | | | | | | Currently 4 tests are failing on the ARM buildbot. To try and diagnose each of the failures this patch does the following: 1) path.itr/iterator.pass.cpp * Temporarily print iteration sequence to see where its failing. 2) path.native.obs/string_alloc.pass.cpp * Remove test that ::new is not called when constructing a short string that requires a conversion. Since during the conversion global locale objects might be constructed. 3) fs.op.funcs/space.pass.cpp * Explicitly use uintmax_t in the implementation of space, hopefully preventing possible overflows. * Add additional tests that check for overflow is the calculation of the space_info values. * Add additional tests for the values returned from statfvs. 4) fs.op.funcs/last_write_time.pass.cpp * No changes made yet. llvm-svn: 273075
* Add checkpoints to string allocation test to help with debugging arm failures.Eric Fiselier2016-06-181-1/+6
| | | | llvm-svn: 273072
* Fix bugs in recursive_directory_iterator::increment(ec) implementation and ↵Eric Fiselier2016-06-171-9/+17
| | | | | | | | | | | | | | | tests. r273060 didn't completely fix the issues in recursive_directory_iterator and the tests. This patch follows up with more fixes * Fix bug where recursive_directory_iterator::increment(ec) did not reset the error code if no failure occurred. * Fix bad assertion in the recursive_directory_iterator::increment(ec) test that would only fire for certain iteration orders. llvm-svn: 273070
* Work around GCC bug in tests. The bug has been fixed in GCC 6.0Eric Fiselier2016-06-171-2/+2
| | | | llvm-svn: 273068
* Fix initialization of test case array in C++11Eric Fiselier2016-06-171-1/+3
| | | | llvm-svn: 273065
* Fix bugs in recursive_directory_iterator implementation and tests.Eric Fiselier2016-06-172-24/+45
| | | | | | | | | | | There are two fixes in this patch: * Fix bug where the constructor of recursive_directory_iterator did not reset the error code if no failure occurred. * Fix tests were dependent on the iteration order of the test directories. llvm-svn: 273060
* Get filesystem tests passing for single-threaded configurations.Eric Fiselier2016-06-176-14/+3
| | | | llvm-svn: 273054
* Update status of filesystem issues, and add tests for LWG issue 2683Eric Fiselier2016-06-171-13/+13
| | | | llvm-svn: 273051
* Reorder permissions test so they are not dependent on the processes umaskEric Fiselier2016-06-171-4/+4
| | | | llvm-svn: 273049
* Respect the processes umask in the create_directory testEric Fiselier2016-06-171-9/+11
| | | | llvm-svn: 273048
* Fix a couple of warnings present in the filesystem tests.Eric Fiselier2016-06-173-4/+16
| | | | llvm-svn: 273035
* Add Filesystem TS -- CompleteEric Fiselier2016-06-17123-0/+10116
Add the completed std::experimental::filesystem implementation and tests. The implementation supports C++11 or newer. The TS is built as part of 'libc++experimental.a'. Users of the TS need to manually link this library. Building and testing the TS can be disabled using the CMake option '-DLIBCXX_ENABLE_FILESYSTEM=OFF'. Currently 'libc++experimental.a' is not installed by default. To turn on the installation of the library use '-DLIBCXX_INSTALL_EXPERIMENTAL_LIBRARY=ON'. llvm-svn: 273034
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