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measureTime

Abstract

measureTime measures the execution time.
measureTime は実行時間を計測します．

Header file

namespace sstd{
    void        measureTime_start     (      time_m& startTime);
    double      measureTime_stop_s    (const time_m& startTime); // sec
    double      measureTime_stop_ms   (const time_m& startTime); // milli sec
    double      measureTime_stop_us   (const time_m& startTime); // micro sec
    double      measureTime_stop_ns   (const time_m& startTime); // nano sec
    std::string measureTime_ms2str    (uint64 tmp);
    std::string measureTime_stop_str  (const time_m& startTime);
    void        measureTime_stop_print(const time_m& startTime);
}

Usage

Measurement of execution time. (実行時間の計測)

  • main.cpp 
    #include <sstd/sstd.hpp>

int main(){
    printf("\n");
    printf("+---------------------------------------------------+\n");
    printf("|                                                   |\n");
    printf("|     Welcome to Sub Standard Library (SSTD) !      |\n");
    printf("|                                                   |\n");
    printf("+---------------------------------------------------+\n");
    printf("\n");
    printf("■ measureTime_start---------------\n\n"); time_m timem; sstd::measureTime_start(timem);

    sstd::sleep_s(1);
    sstd::sleep_ms(100);
    sstd::sleep_us(11*1000);

    printf("\n");
    printf("■ measureTime_stop----------------\n");
    sstd::measureTime_stop_print(timem);
    sstd::pauseIfWin32();
    return 0;
}
  • Execution result 
    +---------------------------------------------------+
|                                                   |
|     Welcome to Sub Standard Library (SSTD) !      |
|                                                   |
+---------------------------------------------------+

■ measureTime_start---------------


■ measureTime_stop----------------
--------------------------------
 Execution time:     1. 118 sec
--------------------------------

Lap time measurement. (ラップタイムの測定)

  • main.cpp 
    #include <sstd/sstd.hpp>

int main(){
    std::vector<double> vLT_ms;

    time_m timem;
    sstd::measureTime_start(timem);
    vLT_ms.push_back( sstd::measureTime_stop_ms(timem) );

    for(uint i=0; i<5; ++i){
        sstd::sleep_ms(10);
        vLT_ms.push_back( sstd::measureTime_stop_ms(timem) );
    }

    sstd::printn(vLT_ms);
    return 0;
}
  • Execution result 
    vLT_ms = [0. 10.07 20.144 30.23 40.327 50.409]

Implementation