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std::calloc

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< cpp‎ | memory‎ | c

 
 
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rel_ops::operator!=
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C Library
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C Library
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malloc
calloc
 
Defined in header <cstdlib>
void* calloc( std::size_t num, std::size_t size );
Aloca memória para uma matriz de objetos de num size tamanho e zero-inicializa-lo.
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Allocates memory for an array of num objects of size size and zero-initializes it.
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Se a alocação for bem sucedida, retorna um ponteiro para o byte mais baixo (primeiro) no bloco de memória alocada que é adequadamente alinhado para qualquer tipo de objeto.
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If allocation succeeds, returns a pointer to the lowest (first) byte in the allocated memory block that is suitably aligned for any object type.
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Se size é zero, o comportamento é implementação definida (ponteiro nulo pode ser devolvida, ou algum ponteiro não nulo pode ser retornado que não pode ser utilizado para aceder a armazenamento)
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If size is zero, the behavior is implementation defined (null pointer may be returned, or some non-null pointer may be returned that may not be used to access storage)
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Índice

[editar] Parâmetros

num -
número de objetos
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number of objects
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size -
tamanho de cada objeto
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size of each object
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[editar] Valor de retorno

Ponteiro para o início da memória recém-alocado ou NULL se o erro ocorreu. O ponteiro deve ser desalocado com free().
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Pointer to the beginning of newly allocated memory or NULL if error has occurred. The pointer must be deallocated with free().
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[editar] Notas

Devido aos requisitos de alinhamento, o número de bytes atribuídos não é necessariamente igual a num*size.
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Due to the alignment requirements, the number of allocated bytes is not necessarily equal to num*size.
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[editar] Exemplo

[editar] Veja também

C documentation for calloc