This is the mail archive of the gcc-help@gcc.gnu.org mailing list for the GCC project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: add/assign problem, part 2.


DCH writes:
 > 
 > >  > I haven't actually compiled up your program, but immediately alarm
 > >  > bells are ringing when I see things like
 > >  >
 > >  > a = *(vec + i)
 > >
 > >It's just a nonstandard way to write vec[i].  I mean, it's weird, but
 > >it's not actually wrong.  :-)
 > 
 > Sure.  The point I was making is that the variable i was being 
 > incremented up to a ceiling value
 > which was determined by a function parameter, i.e. you're trusting 
 > whoever calls your function
 > to get the value of this parameter correct.  Much safer to iterate 
 > with a vector:
 > 
 > for (size_t i = 0, length = vec.size(); i < length; ++i) {
 >          do something with vec[i];
 > }

Right, but that's a red herring here: the code in question doesn't
seem to be getting that wrong.  I don't agree with your point in
general, but it seems to be at best only tangentially related to the
OP's problem.

What we need from the OP is a description of the expected behaviour,
and then we can discover whether this really is a compiler bug.

Andrew.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]