C语言库tmpnam()函数

// -------------------------------------
#include <stdio.h>

int main () {
   char buffer[L_tmpnam];
   char *ptr;

   tmpnam(buffer);
   printf(Temporary name 1: %s\n, buffer);

   ptr = tmpnam(NULL);
   printf(Temporary name 2: %s\n, ptr);

   return(0);
}