* scm_must_free
@ 2002-08-22 0:07 Han-Wen Nienhuys
2002-08-26 22:03 ` scm_must_free Marius Vollmer
0 siblings, 1 reply; 2+ messages in thread
From: Han-Wen Nienhuys @ 2002-08-22 0:07 UTC (permalink / raw)
Why does scm_must_free barf on freeing the null pointer?
free() frees the memory space pointed to by ptr, which
must have been returned by a previous call to malloc(),
calloc() or realloc(). Otherwise, or if free(ptr) has
already been called before, undefined behaviour occurs.
If ptr is NULL, no operation is performed.
--
Han-Wen Nienhuys | hanwen@cs.uu.nl | http://www.cs.uu.nl/~hanwen
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* Re: scm_must_free
2002-08-22 0:07 scm_must_free Han-Wen Nienhuys
@ 2002-08-26 22:03 ` Marius Vollmer
0 siblings, 0 replies; 2+ messages in thread
From: Marius Vollmer @ 2002-08-26 22:03 UTC (permalink / raw)
Cc: guile-devel
Han-Wen Nienhuys <hanwen@cs.uu.nl> writes:
> Why does scm_must_free barf on freeing the null pointer?
I don't know. scm_must_free is on its way out anyway so we might not
want to bother. (See scm_gc_malloc etc for the functions that it is
replaced with, in HEAD.)
scm_must_malloc can't return a NULL pointer, so maybe that's the reason.
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