std::ratio_equal
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| Definido no cabeçalho <ratio>
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| template< class R1, class R2 > struct ratio_equal : std::integral_constant; |
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Se as taxas de R1 e R2 são iguais, proporciona o membro constante
value true igual. Caso contrário, é value false.Original:
If the ratios R1 and R2 are equal, 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.
You can help to correct and verify the translation. Click here for instructions.
Índice |
Herdado de std::integral_constant
Member constants
| value [estática] |
true se R1::num == R2::num && R1::den == R2::den , false contrário Original: true if R1::num == R2::num && R1::den == R2::den , 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
| Tipo
Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
value_type
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bool
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type
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std::integral_constant<bool, value> |
[editar] Possível implementação
template< class R1, class R2 > struct ratio_equal : public std::integral_constant < bool, R1::num == R2::num && R1::den == R2::den > {}; |
[editar] Exemplo
#include <iostream> #include <ratio> int main() { if(std::ratio_equal<std::ratio<2,3>, std::ratio<4,6>>::value) { std::cout << "2/3 == 4/6\n"; } else { std::cout << "2/3 != 4/6\n"; } }
Saída:
2/3 == 4/6
