简介
计时函数类的使用,觉得某个代码写的特别好特此注释
参考链接
https://github.com/gaoxifeng/Feature-Preserving-Octree-Hex-Meshing
code
#pragma once
#include <chrono>
template <typename TimeT = std::chrono::milliseconds>
class Timer{
public:
Timer() {
start = std::chrono::system_clock::now();
}
size_t value() const {
auto now = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<TimeT>(now - start);
return (size_t) duration.count();
}
size_t reset() {
auto now = std::chrono::system_clock::now();
auto duration = std::chrono::duration_cast<TimeT>(now - start);
start = now;
return (size_t) duration.count();
}
void beginStage(const std::string &name){
reset();
std::cout << name << " .. ";
std::cout.flush();
}
void endStage(const std::string &str = ""){
std::cout << "done. (took " << value() << " ms";
if(!str.empty()){
std::cout << ", " << str;
}
std::cout << ")" << std::endl;
}
private:
std::chrono::system_clock::time_point start;
};
使用方式
Timer<> timer;
timer.beginStage("START MESHING");
cout << endl;
if(!m.processing(path))
return false;
timer.endStage("END MESHING");
std::cout << "TIMING: " << timer.value() << "ms" << endl;