{{keywords>wiki library source code example reference}}

===== tmpnam =====
<code c>
    char *tmpnam(char *str);
</code>

Assigns to s (if s non-null) and returns unique name for a temporary file. Unique name is returned for each of the first TMP_MAX invocations.

===== C Sourcecode Example =====
<code c>
/* 
 * tmpnam example code
 * http://code-reference.com/c/stdio.h/tmpnam 
 */

#include <stdio.h> /* including standard library */
//#include <windows.h> /* uncomment this for Windows */


int main ( void ) 
{
FILE *tmpstream;
char *tmpfile;

tmpfile = tmpnam(NULL);
tmpstream= fopen(tmpfile, "w");

if ( tmpstream == NULL) {
  perror("Error opening tmp stream");
}

fputs("Test for tmpnam", tmpstream);

rename(tmpfile, "test.txt");
fclose(tmpstream);
return 0;

}

</code>

content of test.txt after executing ./tmpnam
<code c>
Test for tmpnam
</code>

==== output ====
    ./tmpnam