On Thu, 2006-11-09 at 22:07 -0500, Per Bojsen wrote: > *** Regarding Re: r15098 - gnucash/trunk/src/gnome-utils - > gnc_history_get_last() can return NULL.; Derek Atkins > <[EMAIL PROTECTED]> adds: > > Derek> free() still doesn't check, but g_free() does. > > Actually at least on Linux, according to man 3 free: > > If ptr is NULL, no operation is performed. > > I don't have my K&R handy so I am not sure if the C standard specifies > this. However, the man page states that it conforms to C89 and C99. > free() is from glibc and I'm pretty sure it's been like this for quite > a few years.
In old standard C, it was not allowed to free a null pointer; in ANSI C it is explicitly allowed. Thomas
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