Originální popis anglicky:
tmpfile - create a temporary file
Návod, kniha: Linux Programmer's Manual
#include <stdio.h>
FILE *tmpfile (void);
The
tmpfile() function generates a unique temporary filename. 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 normally.
The
tmpfile() function returns a stream descriptor, or NULL if a unique
filename cannot be generated or the unique file cannot be opened. In the
latter case,
errno is set to indicate the error.
- EACCES
- Search permission denied for directory in file's path
prefix.
- EEXIST
- Unable to generate a unique filename.
- EINTR
- The call was interrupted by a signal.
- EMFILE
- Too many file descriptors in use by the process.
- ENFILE
- Too many files open in the system.
- ENOSPC
- There was no room in the directory to add the new
filename.
- EROFS
- Read-only filesystem.
SVID 3, POSIX, BSD 4.3, ISO 9899, SUSv2
An error message may be written to
stdout if the stream cannot be opened.
The standard does not specify the directory that
tmpfile() will use.
Glibc will try the path prefix
P_tmpdir defined in
<stdio.h>, and if that fails the directory
/tmp.
exit(3),
mkstemp(3),
mktemp(3),
tempnam(3),
tmpnam(3)
