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.
- The function can be called up to TMP_MAX times.
- TMP_MAX is defined in <stdio.h>, and it will be at least 25.
Display three unique temporary filenames
#include <stdio.h>
int main(void)
{
char name[40];
int i;
for(i=0; i<3; i++) {
tmpnam(name);
printf("%s ", name);
}
return 0;
}