mirror of
https://github.com/boostorg/filesystem.git
synced 2026-02-23 03:32:18 +00:00
701ae40549
The rvalue-aware operator/ needs to return an rvalue, not an rvalue reference so that binding its result to a const reference in the caller's code doesn't leave a dangling reference. This hampers operator/ efficiency to some degree, but it is still better than the non-rvalue-aware version as it still allows to avoid copying the path body. The non-rvalue-aware operator/ is now creating an automatic variable which will be returned to leverage NRVO. The previous implementation used to return an lvalue reference to a temporary, which did not match NRVO criteria[1]. Fixes https://github.com/boostorg/filesystem/issues/110. Closes https://github.com/boostorg/filesystem/pull/111. [1]: https://en.cppreference.com/w/cpp/language/copy_elision
Boost.Filesystem
Boost.Filesystem, part of collection of the Boost C++ Libraries, provides facilities to manipulate files and directories, and the paths that identify them.
Directories
- doc - Documentation sources
- include - Interface headers of Boost.Filesystem
- src - Compilable source files of Boost.Filesystem
- test - Boost.Filesystem unit tests
- example - Boost.Filesystem usage examples
More information
- Documentation
- Report bugs. Be sure to mention Boost version, platform and compiler you're using. A small compilable code sample to reproduce the problem is always good as well.
- Submit your patches as pull requests against develop branch. Note that by submitting patches you agree to license your modifications under the Boost Software License, Version 1.0.
Build status
Master:
Develop:
License
Distributed under the Boost Software License, Version 1.0.