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      std::is_class

      Da cppreference.com
      < cpp‎ | types

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      C++
       
      Biblioteca de utilitários
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      rel_ops::operator!=
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      is_class
      (C++11)
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      Propriedades de tipo
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      Type properties
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      Definido no cabeçalho <type_traits>
      template<class T >
      struct is_class;
      		(desde C++11)
      Se T é uma classe ou struct (mas não uma união), fornece o membro constante valuetrue igual. Para qualquer outro tipo, é valuefalse.
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      If T is a class or struct (but not a union), provides the member constant value equal true. For any other type, value is false.
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      Índice

      Herdado de std::integral_constant

      Member constants

      value
      [estática]
      true se T is a class or struct , false contrário
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      true if T is a class or struct , false otherwise
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      (membro estático público constante)

      Member functions

      operator bool
      converte o objeto em bool, retorna value
      Original:
      converts the object to bool, returns value
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      (função pública membro)

      Member types

      Tipo
      Original:
      Type
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      		 Definition
      value_typebool
      typestd::integral_constant<bool, value>

      [editar]Exemplo

      #include <iostream>#include <type_traits>   struct A {};   class B {};   enumclass C {};   int main(){std::cout<<std::boolalpha;std::cout<< std::is_class<A>::value<<'\n';std::cout<< std::is_class<B>::value<<'\n';std::cout<< std::is_class<C>::value<<'\n';std::cout<< std::is_class<int>::value<<'\n';}

      Saída: 

      true true false false

      [editar]Veja também

      (C++11)
      verifica se o tipo é um tipo de união
      Original:
      checks if a type is an union type
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      (modelo de classe)[edit]
      Obtida de "https://pt.cppreference.com/mwiki/index.php?title=cpp/types/is_class&oldid=24550"
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