Can sbrk and malloc be used in the same program?

[Siddhesh Poyarekar]

On Wed, 12 Aug 2020 at 18:06, 孙世龙 sunshilong via Libc-help
<libc-help@sourceware.org> wrote:
> As per the representation(https://my.eng.utah.edu/~cs4400/malloc.pdf,
> page 3),  which says:
> Do not use sbrk in a program that also uses malloc or anything that
> calls malloc (such as print).
>
> Is it right?
> If it's right, why?

malloc uses the heap area created by brk() to allocate memory, so
using brk() will interfere with malloc or any other library function
that uses malloc.

Siddhesh

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