std::ratio_less - cppreference.com
Espaços nominais
Variantes
    Ações

      std::ratio_less

      De cppreference.com

      <metanoindex/>

       
      C++
       
      Biblioteca numéricos
      Funções matemáticas comuns
      De ponto flutuante ambiente
      Números complexos
      Matrizes numéricas
      Pseudo-aleatório de geração de números
      Tempo de compilação aritmética racional (C++11)
      Genéricos operações numéricas
      Original:
      Generic numeric operations
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
       
      Compilar hora aritmética racional
      (C++11)
      Aritmética
      Original:
      Arithmetic
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Comparação
      Original:
      Comparison
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
       
      <tbody> </tbody>
      Definido no cabeçalho <ratio>
      template< class R1, class R2 > struct ratio_less : std::integral_constant;
      Se a relação de R1 é menor do que o rácio de R2, fornece o membro constante value true igual. Caso contrário, é value false.
      Original:
      If the ratio R1 is less than the ratio R2, provides the member constant value equal true. Otherwise, value is false.
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      Herdado de std::integral_constant

      Member constants

      value
      [estática]
      true se R1::num * R2::den < R2::num * R1::den, or equivalent expression that avoids overflow , false contrário
      Original:
      true if R1::num * R2::den < R2::num * R1::den, or equivalent expression that avoids overflow , false otherwise
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      (membro estático público constante)

      Member functions

      operator bool
      converte o objeto em bool, retorna value
      Original:
      converts the object to bool, returns value
      The text has been machine-translated via Google Translate.
      You can help to correct and verify the translation. Click here for instructions.

      (função pública membro)

      Member types

      Exemplo

      #include <iostream>
#include <ratio>

int main()
{
    if (std::ratio_less<std::ratio<23,37>, std::ratio<57,90>>::value) {
        std::cout << "23/37 < 57/90\n";
    }
}

      Saída: 

      23/37 < 57/90