C Tutorial/stdio.h/tmpnam

tmpnam

Item Value Header file stdio.h Declaration char *tmpnam(char *name); Function generates a unique filename. *name should be at least L_tmpnam characters long. L_tmpnam is defined in <stdio.h>. Return the unique temp name on success or a null pointer on error.

1. The function can be called up to TMP_MAX times.
2. TMP_MAX is defined in <stdio.h>, and it will be at least 25.

Display three unique temporary filenames

<source lang="cpp">#include <stdio.h>

 int main(void)
 {
   char name[40];
   int i;
   for(i=0; i<3; i++) {
     tmpnam(name);
     printf("%s ", name);
   }
   return 0;
 }</source>