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50 lines
1.7 KiB
50 lines
1.7 KiB
#include <chrono>
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#include <iostream>
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#include <string>
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#include <functional>
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using namespace std::chrono_literals;
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template<class T>
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void time_type(const size_t loop,T init,T incr ,const std::function<T(T,T)> lambda, std::string name)
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{
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T p;
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auto begin = std::chrono::high_resolution_clock::now();
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for(T i=0;i<loop;++i)
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{
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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p=lambda(p,incr);
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}
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auto end = std::chrono::high_resolution_clock::now();
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std::cout
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<<name
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<<" took "
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<<std::chrono::duration_cast<std::chrono::microseconds>(end-begin).count()
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<<"µs"
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<<std::endl;
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}
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int main()
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{
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time_type<int>(10000,1,1,[](int a,int b)->int {return a+b;}, "int +");
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time_type<int>(10000,20000,1,[](int a,int b)->int {return a-b;}, "int -");
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time_type<int>(10000,1,2,[](int a,int b)->int {return a*b;}, "int *");
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time_type<int>(10000,99999999,2,[](int a,int b)->int {return a/b;}, "int /");
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time_type<float>(10000,1,0.5,[](float a,float b)->float {return a+b;}, "float +");
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time_type<float>(10000,20000,1.14,[](float a,float b)->float {return a-b;}, "float -");
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time_type<float>(10000,1,1.25,[](float a,float b)->float {return a*b;}, "float *");
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time_type<float>(10000,99999999,1.25,[](float a,float b)->float {return a/b;}, "float /");
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time_type<double>(10000,1,0.5,[](double a,double b)->double {return a+b;}, "double +");
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time_type<double>(10000,20000,1.14,[](double a,double b)->double {return a-b;}, "double -");
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time_type<double>(10000,1,1.25,[](double a,double b)->double {return a*b;}, "double *");
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time_type<double>(10000,99999999,1.25,[](double a,double b)->double {return a/b;}, "double /");
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}
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