Checks whether the pathsp1 andp2 refer to the same file or directory and have the same file status as determined bystatus (symlinks are followed).

Ifp1 orp2 does not exist or if their file type is not file, directory, or symlink (as determined byis_other), an error is reported.

The non-throwing overload returnsfalse on errors.

[edit]Parameters

[edit]Return value

true if thep1 andp2 refer to the same file or directory and their file status is the same.false otherwise.

[edit]Exceptions

[edit]Notes

Two paths are considered to resolve to the same file system entity ifst_dev andst_ino of their POSIXstat structure, obtained as if by POSIXstat, are equal (meaning, the files are located on the same device at the same location).

In particular, all hard links for the same file or directory are equivalent, and a symlink and its target on the same file system are equivalent.

[edit]Example

#include <cstdint>#include <experimental/filesystem>#include <iostream>namespace fs= std::experimental::filesystem; int main(){// hard link equivalency    fs::path p1=".";    fs::path p2= fs::current_path();if(fs::equivalent(p1, p2))std::cout<< p1<<" is equivalent to "<< p2<<'\n'; // symlink equivalency    fs::path p3="/lib/libc.so.6";    fs::path p4= p3.parent_path()/ fs::read_symlink(p3);if(fs::equivalent(p3, p4))std::cout<< p3<<" is equivalent to "<< p4<<'\n';}

"." is equivalent to "/var/tmp/test""/lib/libc.so.6" is equivalent to "/lib/libc-2.12.so"

[edit]See also