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      std::allocator_traits::allocate

      De cppreference.com

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      <metanoindex/>

       
      C++
       
      Gerenciamento de memória dinâmica
      Gerenciamento de memória de baixo nível
      Alocadores
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      Allocators
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Uninitialized armazenamento
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      Uninitialized storage
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      (C++11)
      Ponteiros inteligentes
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      Smart pointers
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      (C++11)
      (C++11)
      (C++11)
      (obsoleta)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Apoio a coleta de lixo
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      Garbage collection support
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      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      (C++11)
      Diversos
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      Miscellaneous
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      (C++11)
      (C++11)
      (C++11)
      C Library
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      C Library
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      std::allocator_traits
      Funções de membro
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      Member functions
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      allocator_traits::allocate
      allocator_traits::deallocate
      allocator_traits::construct
      allocator_traits::destroy
      allocator_traits::max_size
      allocator_traits::select_on_container_copy_construction
       
      <tbody> </tbody>
      Definido no cabeçalho <memory>
      static pointer allocate( Alloc& a, size_type n );
      		 (1) (desde C++11)
      static pointer allocate( Alloc& a, size_type n, const_void_pointer hint );
      		 (2) (desde C++11)

      1)

      Usa o a alocador de alocar bytes n*sizeof(Alloc::value_type) de armazenamento não inicializado, chamando a.allocate(n)
      Original:
      Uses the allocator a to allocate n*sizeof(Alloc::value_type) bytes of uninitialized storage, by calling a.allocate(n)
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      2)

      Usa o a alocador de alocar bytes n*sizeof(Alloc::value_type) de armazenamento não inicializado com o hint dica memória localidade. Chama a.allocate(n, hint) se possível. Se não for possível (por exemplo, não tem dois argumentos função membro allocate ()), chama a.allocate(n)
      Original:
      Uses the allocator a to allocate n*sizeof(Alloc::value_type) bytes of uninitialized storage with the memory locality hint hint. Calls a.allocate(n, hint) if possible. If not possible (e.g. a has no two-argument member function allocate()), calls a.allocate(n)
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      Parâmetros

      a -
      alocador de usar
      Original:
      allocator to use
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      n -
      o número de objetos para alocar memória para
      Original:
      the number of objects to allocate storage for
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      hint -
      ponteiro para uma localização de memória nas proximidades
      Original:
      pointer to a nearby memory location
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      Valor de retorno

      O ponteiro retornado pela chamada para a.allocate(n)
      Original:
      The pointer returned by the call to a.allocate(n)
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      Veja também
      aloca inicializado armazenamento
      Original:
      allocates uninitialized storage
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      (of std::allocator função pública membro) [edit]