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Re: Patch: New null_terminated attribute for C/C++
Tom Tromey wrote:
Isn't calling exec("foo", "bar", NULL) from C++ is an error, because
NULL is 0? Suppose sizeof(int)!=sizeof(char*). Then the 0 will be
the wrong width. Or is NULL in C++ guaranteed to be a pointer-width 0?
It is, for any sane compiler, including G++. Actually, NULL in G++ is
a magic __null constant, but the same applies.
I think we should allow exec("foo", "bar", NULL), without a warning.
Certainly for C we must, to avoid too many spurious warnings for
long-working and in practice portable code. For C++ I also think
we should allow it without warning, as it is portable given a sane
definition of NULL.
--
--Per Bothner
per@bothner.com http://www.bothner.com/per/