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

SEE ALSO

     mktemp(3), mkstemp(3), tmpnam(3),