[RFC PATCH] realloc: Make REALLOC_ZERO_BYTES_FREES into a tunable

[Andreas Schwab]

On Okt 18 2024, Siddhesh Poyarekar wrote:

> Allow users to select this behaviour at runtime, which should allow them
> flexibility to have glibc realloc do the same thing that many other
> implementations do for realloc (p, 0).  The default behaviour remains
> unchanged for now.

That doesn't make sense.  The required behaviour of realloc (p, 0) is a
static, compile-time property of the program, so it needs to be
controlled at compile time.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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