std::filesystem::file_status::permissions
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< cpp | filesystem | file status
C++
Feature test macros (C++20)
Concepts library (C++20)
Metaprogramming library (C++11)
Ranges library (C++20)
Filesystem library (C++17)
Concurrency support library (C++11)
Execution control library (C++26)
std::filesystem::file_status
Member functions
file_status::permissions
Non-member functions
(C++20)
std::filesystem::perms permissions() const noexcept;
(1)
(since C++17)
void permissions( std::filesystem::perms perm ) noexcept;
(2)
(since C++17)
Accesses the file permissions information.
1) Returns file permissions information.
2) Sets file permissions to perm.
[edit] Parameters
perm
-
file permissions to set to
[edit] Return value
1) File permissions information.
2) (none)
[edit] Example
Run this code
#include <filesystem> #include <fstream> #include <iostream> void demo_perms(std::filesystem::perms p) { using std::filesystem::perms ; auto show = [=](char op, perms perm) { std::cout << (perms::none == (perm & p) ? '-' : op); }; show('r', perms::owner_read); show('w', perms::owner_write); show('x', perms::owner_exec); show('r', perms::group_read); show('w', perms::group_write); show('x', perms::group_exec); show('r', perms::others_read); show('w', perms::others_write); show('x', perms::others_exec); std::cout << '\n'; } int main() { std::ofstream ("test.txt"); // create file std::cout << "Created file with permissions: "; demo_perms(std::filesystem::status ("test.txt").permissions()); std::filesystem::permissions ( "test.txt", std::filesystem::perms::owner_all | std::filesystem::perms::group_all, std::filesystem::perm_options::add ); std::cout << "After adding u+rwx and g+rwx: "; demo_perms(std::filesystem::status ("test.txt").permissions()); std::filesystem::remove ("test.txt"); }
Possible output:
Created file with permissions: rw-r--r-- After adding u+rwx and g+wrx: rwxrwxr--