Calloc-内存分配

Question

Does calloc allocate return contiguous memory location? If yes, what would it do if it is not available?

Answer 1

Does calloc allocate returns contiguous memory location?

Yes. ¹

what would it do if it is not available?

Return NULL .

See section 7.20.3.1 of the C99 standard.

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_{1. So far as the C program is concerned. In a virtual memory system, the underlying physical memory used may not be contiguous.}

Answer 2

是的，C标准保证calloc返回的指针为NULL或指向连续内存块。