r256283 - in /trunk/libstdc++-v3: ChangeLog src...

[redi@gcc.gnu.org]

Author: redi
Date: Fri Jan  5 18:02:18 2018
New Revision: 256283

URL: https://gcc.gnu.org/viewcvs?rev=256283&root=gcc&view=rev
Log:
PR libstdc++/83626 handle ENOENT due to filesystem race

	PR libstdc++/83626
	* src/filesystem/ops.cc (remove(const path&, error_code&)): Do not
	report an error for ENOENT.
	(remove_all(const path&)): Fix type of result variable.
	(remove_all(const path&, error_code&)): Use non-throwing increment
	for directory iterator. Call POSIX remove directly to avoid redundant
	calls to symlink_status. Do not report errors for ENOENT.
	* src/filesystem/std-ops.cc: Likewise.
	* testsuite/27_io/filesystem/operations/remove_all.cc: Test throwing
	overload.
	* testsuite/experimental/filesystem/operations/remove_all.cc:
	Likewise.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/src/filesystem/ops.cc
    trunk/libstdc++-v3/src/filesystem/std-ops.cc
    trunk/libstdc++-v3/testsuite/27_io/filesystem/operations/remove_all.cc
    trunk/libstdc++-v3/testsuite/experimental/filesystem/operations/remove_all.cc