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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)