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.
SVID 3, POSIX, BSD 4.3, ISO 9899, SUSv2