TMPFILE(3)

NAME
tmpfile - create a temporary file

SYNOPSIS
#include <stdio.h>

FILE *tmpfile (void);

DESCRIPTION
The tmpfile() function generates a unique temporary filename using the path prefix P_tmpdir defined in <stdio.h>. The temporary file is then opened in binary read/write (w+b) mode. The file will be automatically deleted when it is closed or the program terminates.

RETURN VALUE
The tmpfile() function returns a stream descriptor, or NULL if a unique filename cannot be generated or the unique file cannot be opened.

ERRORS

EACCES
    Search permission denied for directory in file's path prefix.

EEXIST
    Unable to generate a unique filename.

EMFILE
    Too many file descriptors in use by process.

ENFILE
    Too many files open in system.

EROFS
    Read-only filesystem.

CONFORMING TO
SVID 3, POSIX, BSD 4.3, ISO 9899, SUSv2

SEE ALSO
mktemp(3), mkstemp(3), tmpnam(3), tempnam(3)