Allocating Zero Memory

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The latest version of this topic can be found at Allocating Zero Memory.

ANSI 4.10.3** The behavior of the calloc, malloc, or realloc function if the size requested is zero

The calloc, malloc, and realloc functions accept zero as an argument. No actual memory is allocated, but a valid pointer is returned and the memory block can be modified later by realloc.

Library Functions