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      std::difftime

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      < cpp‎ | chrono‎ | c

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      Utilitários de data e hora
       
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      Manipulação do tempo
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      difftime
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      Definido no cabeçalho <ctime>
      double difftime( time_t time2, time_t time1 );
      Calcula diferença entre duas horas de calendário como objetos time_t (time2 - time1) em segundos.
      Original:
      Computes difference between two calendar times as time_t objects (time2 - time1) in seconds.
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      Índice

      [editar]Parâmetros

      time1, time2 -
      vezes para comparar
      Original:
      times to compare
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      [editar]Valor de retorno

      Diferença entre duas vezes no segundo
      Original:
      Difference between two times in seconds
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      [editar]Exemplo

      #include <iostream>#include <ctime>int main(){std::time_t start =std::time(NULL);volatiledouble d;for(int n=0; n<10000;++n)for(int m=0; m<100000;++m) d += d*n*m;// some time-consuming operationstd::cout<<"Wall time passed: "<< std::difftime(std::time(NULL), start)<<" s.\n";}

      Saída: 

      Wall time passed: 7 s.

      [editar]Veja também

      (C++11)
      um intervalo de tempo
      Original:
      a time interval
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      (modelo de classe)[edit]
      Documentação C para difftime
      Obtida de "https://pt.cppreference.com/mwiki/index.php?title=cpp/chrono/c/difftime&oldid=20030"
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