在C++中怎么让函数接收不定数量的参数

#include <stdio.h>
#include <stdarg.h>

/* calculate sum of a 0 terminated list */
void sum(char *msg, …)
{
  int total = 0;
  va_list ap;
  int arg;
  va_start(ap, msg);
  while ((arg = va_arg(ap,int)) != 0) {
      total += arg;
  }
  printf(msg, total);
  va_end(ap);
}

int main(void) {
  sum(“The total of 1+2+3+4 is %d\n”, 1,2,3,4,0);
  return 0;
}