std::experimental::filesystem::temp_directory_path - cppreference.com

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# std::experimental::filesystem::temp_directory_path

From cppreference.com
< cpp‎ | experimental‎ | fs

Defined in header `<experimental/filesystem>` |  |
path temp_directory_path(); path temp_directory_path( error_code& ec ); | (1) | (filesystem TS)

Returns the directory location suitable for temporary files.

### [edit] Parameters

(none)

### [edit] 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.

### [edit] Exceptions

The overload that does not take a `error_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

### [edit] 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`

### [edit] 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\"

### [edit] See also

tmpfile | creates and opens a temporary, auto-removing file (function) [edit]

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Category:

- unconditionally noexcept