标签：在父字符串中查找子字符串
在父字符串中查找子字符串（指针控制，也可选择标控制）
#pragma once
#include<iostream>
#include<assert.h>
using namespace std;
char* StrStr(char* source, char* dest)
{
assert(source&&dest);
if (strlen(source) < strlen(dest))
return NULL;
char* newSrc = NULL;
char* newDest = dest;
while (*source)
{
newSrc = source;
while (*source&&*dest&&*source == *dest)
{
source++;
dest++;
}
if (*dest == ‘\0‘)
{
return newSrc;
}
dest = newDest;
source = newSrc + 1;
}
}
void Test1()
{
char* src = "abcbcdef";
char* dest = "bcd";
cout << StrStr(src, dest) << endl;
}指针追踪截图
本文出自 “小止” 博客，请务必保留此出处http://10541556.blog.51cto.com/10531556/1755336
标签：在父字符串中查找子字符串
原文地址：http://10541556.blog.51cto.com/10531556/1755336
