std::filesystem::file_status:: permissions
From cppreference.com
<
cpp
|
filesystem
|
file status
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
.
Parameters
perm | - | file permissions to set to |
Return value
1)
File permissions information.
2)
(none)
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--