#include <iostream>
#include <assert.h>
using namespace std;
const int N_PRIMES = 7;
int primes[N_PRIMES] = {2,3,5,7, 11, 13, 17};
int main()
{
int index = 10;
assert(index<N_PRIMES);//这里assert括号内为false，程序异常终止。
assert(index>=0);
cout << "The tenth prime is " << primes[index] << endl;
return 0;
}
assert()用于判断是否为false，若为false，声明失败并发出一条信息，而后程序异常终止。ios