add/assign problem, part 2.

[Andrew Haley]

Andrew Haley writes:
 > 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

Ahem.  I don't diisagree.  :-)

 > 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.