NAME

       pm_tmpfile() - create a temporary unnamed file

SYNOPSIS

       #include <netpbm/pm.h>

       FILE *
       pm_tmpfile(void);

EXAMPLE

       This  simple example creates a temporary file, writes "hello world" to it, then reads back
       and prints those contents.

       #include <netpbm/pm.h>

       FILE * myfileP;

       myfile = pm_tmpfile();

       fprintf(myfile, "hello world\n");

       fseek(myfileP, 0, SEEK_SET);

       fread(buffer, sizeof(buffer), 1, myfileP);

       fprintf(STDOUT, "temp file contains '%s'\n", buffer);

       fclose(myfileP);

DESCRIPTION

       This library function is part of Netpbm(1).

       pm_tmpfile() creates and opens an unnamed temporary file.  It is basically the same  thing
       as  the standard C library tmpfile() function, except that it uses the TMPFILE environment
       variable to decide where to create the temporary file.  If TMPFILE is not set or is set to
       something  unusable (e.g.  too long), pm_tmpfile() falls back to the value of the standard
       C library symbol P_tmpdir, just like tmpfile().

       Unlike tmpfile(), pm_tmpfile() never returns NULL.  If it fails, it issues  a  message  to
       Standard Error and aborts the program, like most libnetpbm routines do.

       If you need to refer to the temporary file by name, use pm_make_tmpfile() instead.

HISTORY

       pm_tmpfile() was introduced in Netpbm 10.20 (January 2004).

DOCUMENT SOURCE

       This  manual page was generated by the Netpbm tool 'makeman' from HTML source.  The master
       documentation is at

              http://netpbm.sourceforge.net/doc/libtmpfile.html

netpbm documentation                       22 Netpbm0subroutine library: pm_tmpfile() function(3)