File and Path Function
char *tempnam(char *dir, char *prefix);
wchar_t *_tempnam(wchar_t *dir, wchar_t *prefix);
wchar_t *_wtempnam(wchar_t *dir, wchar_t *prefix);
TCHAR *_ttempnam(TCHAR *dir, TCHAR *prefix);
Internationalization (I18n) Function Overview
The tempnam function returns a unique temporary path and filename, using prefix to form the filename and dir for the path.
In the event of an error the function returns NULL.
_tempnam is the Windows MBCS function. It automatically handles multibyte-character string arguments as appropriate, recognizing
multibyte-character sequences according to the multibyte code page currently in use.
_wtempnam, supported only on Windows, is the wide version of _tempnam; its arguments and return are wide-character strings.
_ttempnam is the Generic version of the function; with the
_MBCS or _UNICODE compiler flags determining its mapping to either
_tempnam or _wtempnam.
See the MSDN Library
for more details, including the rules used in creating the unique filename on Windows systems; and
GNU C Library
for details and creation rules when using the GCC compiler.
I18n Issues
Use the appropriate version of the function as required for internationalization support, noting the following:
On ANSI UTF-16 platforms, use a conversion function to convert the
wide-character strings to multibyte-character strings and then call tempnam.
In a Windows MBCS application, the _tempnam function depends on the multibyte code page in effect. By default, the multibyte code page
is set to the system-default ANSI code page obtained from the operating system at program startup.
Use _getmbcp and _setmbcp to query or change
the current multibyte code page, respectively.
See Pathnames for a discussion of path and filename considerations in
an internationalized application.
Recommended Replacements*
*If you're already using the recommended function, see I18n Issues for other reasons why Globalyzer is detecting the function.
File and Path
Functions
|
