C++分割字符串

#include <iostream>
#include <string>
#include <vector>
using namespace std;

/*
功能：字符串分割
返回值: 分割后的字符串数组
参数：
str：原字符串
pattern：分隔符
*/
vector<string> split(const string &str, const string &pattern)
{
	int current, pos, patlen;
	vector<string> result;

	patlen = pattern.length();
	current = pos = 0;
	while( current < str.length() )
	{
		pos = str.find(pattern, pos);
		if( string::npos == pos )
		{
			result.push_back( str.substr(current) );
			break;
		}
		if( current != pos )
			result.push_back( str.substr(current, pos-current) );
		pos += patlen;
		current = pos;
	}
	return result;
}

//测试程序
int main()
{
	string str = "AAsldfAAjsljAAsfjoeAAeorAsdofAA";
	vector<string> vec = split(str, "AA");
	for(int i=0; i<vec.size(); i++)
		cout << vec[i] << endl;
	return 0;
}