Using NULL as an illegal pointer
chris at umcp-cs.UUCP
chris at umcp-cs.UUCP
Mon Jul 2 14:14:09 AEST 1984
You can argue the merits of ``char *foo = NULL;'' versus ``char
*foo = (char *)NULL;'' 'til you're blue in the face, but the C
language specification requires that assignments (and return values)
be of the same type as the left hand side of the assignment (or
the type of the function). If a C compiler generate different code
for
char *func() { return 0; }
and
char *func() { return (char *) 0; }
then it is broken.
--
In-Real-Life: Chris Torek, Univ of MD Comp Sci (301) 454-7690
UUCP: {seismo,allegra,brl-bmd}!umcp-cs!chris
CSNet: chris at umcp-cs ARPA: chris at maryland
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