[Bug 1730] Change malloc(0) behavior to match FreeBSD and Linux

[bugzilla-daemon at rtems.org]

https://www.rtems.org/bugzilla/show_bug.cgi?id=1730

--- Comment #13 from Gedare <giddyup44 at yahoo.com> 2011-01-31 14:50:18 CST ---
Interestingly, I ran into code today that failed because of this behavior. The
code uses lists allocated within a struct, and allocates a list of size 0 in
case the list is unused by the struct.  The check for NULL return value for
out-of-memory was tripped by malloc(0), so the program spuriously exited.  I
had to add a check to say that I wanted to use malloc(0)'s results, and another
check when free'ing to avoid passing NULL.

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