tmpfile(3S) — AT&T SYSTEM V
NAME
tmpfile − create a temporary file
SYNOPSIS
#include <stdio.h>
FILE ∗tmpfile ()
DESCRIPTION
tmpfile creates a temporary file using a name generated by tmpnam(3S), and returns a corresponding FILE pointer. If the file cannot be opened, an error message is printed using perror(3C), and a NULL pointer is returned. The file will automatically be deleted when the process using it terminates. The file is opened for update ("w+").
SEE ALSO
creat(2), unlink(2), fopen(3S), mktemp(3C), perror(3C), tmpnam(3S).
CX/UX Programmer’s Reference Manual