about malloc calloc and realloc

Question

Possible Duplicates:
How is malloc() implemented internally?
How do free and malloc work in C?

whenever we write the program using malloc , calloc and realloc where does the varies go and sit, i.e in which part of the memory do they go and reside. also whether the variables (in all cases) are allotted a contiguous space or the variables go and sit wherever the space is available

related: http://stackoverflow.com/questions/1119134/how-malloc-and-free-work — Mark Elliot, Feb 24 '11 at 04:14
related: http://stackoverflow.com/questions/1957099/how-do-free-and-malloc-work-in-c — Mark Elliot, Feb 24 '11 at 04:15

score 0 · Answer 1 · answered Feb 24 '11 at 04:25

0

The requested memory is allocated contiguously on the heap if enough space is available. Otherwise, those functions return NULL to indicate a failure.

answered Feb 24 '11 at 04:25

Judge Maygarden

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about malloc calloc and realloc

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