C++字符串按照指定规则切割的功能模板类,常用的一段检测记录运行时间的代码
template <typename T>
struct vector_split
{
typedef typename std::vector<T>::iterator its;
void operator()(std::vector<T>& data,std::vector<T>& seprate,std::vector<its>& result)
{
std::vector<int> ab;
its ini;
result.clear();
its i=data.begin(),itend=data.end();
its first=ini,second=ini;
its aim_f =seprate.begin(),aim_e=seprate.end();
while(i!=itend)
{
while(i!=itend &&
(std::find_if(aim_f, aim_e, [&](const T& T_va){return T_va == *i;})!=aim_e)
) ++i;
first=i;
while(i!=itend &&
(std::find_if(aim_f, aim_e, [&](const T& T_va){return T_va == *i;})==aim_e)
) ++i;
second=--i;++i;
if(first!=ini && first !=itend){
result.push_back(first);
result.push_back(second);
first =ini;second=ini;
}
}
}
};
auto start = std::chrono::high_resolution_clock::now();
//耗时操作
auto stop = std::chrono::high_resolution_clock::now();
auto time_consume=stop-start;
std::cout<<j<<" computing time :"<<time_consume.count()<<"mileseconds"<<std::endl;