std::experimental::filesystem::temp_directory_path
From cppreference.com
< cpp | experimental | fs
| Defined in header <experimental/filesystem>
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| path temp_directory_path(); path temp_directory_path( error_code& ec ); |
(1) | (filesystem TS) |
Returns the directory location suitable for temporary files.
Parameters
(none)
Return value
A directory suitable for temporary files. The path is guaranteed to exist and to be a directory. The overload that takes error_code& argument returns an empty path on error.
Exceptions
The overload that does not take aerror_code& parameter throws filesystem_error on underlying OS API errors, constructed with path to be returned as the first argument and the OS error code as the error code argument. std::bad_alloc may be thrown if memory allocation fails. The overload taking a error_code& parameter sets it to the OS API error code if an OS API call fails, and executes ec.clear() if no errors occur. This overload has noexcept specification:
noexcept
Notes
On POSIX systems, the path may be the one specified in the environment variables TMPDIR, TMP, TEMP, TEMPDIR, and, if none of them are specified, the path "/tmp" is returned.
On Windows systems, the path is typically the one returned by GetTempPath
Example
Run this code
#include <iostream> #include <experimental/filesystem> namespace fs = std::experimental::filesystem; int main() { std::cout << "Temp directory is " << fs::temp_directory_path() << '\n'; }
Possible output:
Temp directory is "C:\Windows\TEMP\"
See also
| creates and opens a temporary, auto-removing file (function) |