gcc/libstdc++-v3
Jonathan Wakely dd35da2cbe PR libstdc++/87116 fix path::lexically_normal() handling of dot-dot
Previously the logic that turned "a/b/c/../.." into "a/" failed to
preserve an empty path at the end of the iteration sequence, as required
by the trailing slash. That meant the result didn't meet the class
invariants, and that "a/b/c/d/../../.." would remove four components
instead of the three that "../../.." should remove.

	PR libstdc++/87116
	* src/filesystem/std-path.cc (path::lexically_normal): When handling
	a dot-dot filename, preserve an empty final component in the iteration
	sequence.
	[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Use preferred-separator for
	root-directory.
	* testsuite/27_io/filesystem/path/generation/normal.cc: Add new tests
	for more than two adjacent dot-dot filenames.
	[_GLIBCXX_FILESYSTEM_IS_WINDOWS]: Replace slashes with
	preferred-separator in expected normalized strings.

From-SVN: r263922
2018-08-28 16:33:53 +01:00
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src PR libstdc++/87116 fix path::lexically_normal() handling of dot-dot 2018-08-28 16:33:53 +01:00
testsuite PR libstdc++/87116 fix path::lexically_normal() handling of dot-dot 2018-08-28 16:33:53 +01:00
acinclude.m4
aclocal.m4
ChangeLog PR libstdc++/87116 fix path::lexically_normal() handling of dot-dot 2018-08-28 16:33:53 +01:00
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file: libstdc++-v3/README

New users may wish to point their web browsers to the file
index.html in the 'doc/html' subdirectory.  It contains brief
building instructions and notes on how to configure the library in
interesting ways.