Some subsurface notes from a week of diving
Thiago Macieira
thiago at macieira.org
Mon Mar 17 14:47:01 PDT 2014
Em seg 17 mar 2014, às 12:33:51, Linus Torvalds escreveu:
> > struct D { int i; int j; };
> > int f(struct D *d)
> > {
> >
> > int *p = &d->j;
> > if (!p)
> > return -1;
> > return *p;
> >
> > }
> >
> > Clang 3.4 removes the check for !p. ICC 14.0 and GCC 4.9 don't.
>
> Yes, and I agree with Clang for this case.
>
> But if you change that thing to tests "d" for NULL, and Clang removes
> the test, then I think Clang is buggy. I don't have clang installed..
None of the compilers I have installed remove the check for if (!d), which was
the original discussion.
--
Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org
Software Architect - Intel Open Source Technology Center
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