NAME

       tmpfile - create a temporary file

SYNOPSIS

       #include <stdio.h>
       FILE *tmpfile (void);

DESCRIPTION

       The  tmpfile() function generates a unique temporary file-
       name 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), tempnam(3)