strspn——两个字符串不相同的起始位置

函数名: strspn
功 能: 在串中查找两个字符串不相同的起始位置
用 法: int strspn(char *str1, char *str2);

 

#include<iostream>
#include<cstring>
using namespace std;
int main()
{
    char *string1 = "1234567890";
    char *string2 = "1234DC8";
    int length;
    length = strspn(string1, string2);
    cout<<"character where strings differ is at position: "<<length<<endl;
    return 0;
}