r271754 - in /trunk/libstdc++-v3: ChangeLog src...

Wed May 29 22:00:00 GMT 2019

Author: redi
Date: Wed May 29 22:00:45 2019
New Revision: 271754

URL: https://gcc.gnu.org/viewcvs?rev=271754&root=gcc&view=rev
Log:
Optimize filesystem::path::parent_path()

Parsing a complete string is more efficient than appending each
component one-by-one.

	* src/c++17/fs_path.cc (path::parent_path()): Create whole path at
	once instead of building it iteratively.

Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/src/c++17/fs_path.cc