How can I turn on bounds checking in STL vectors?

I would like to be able to turn on bounds checking
for debugging and turn it off on production runs.
What is the easiest way to do this with STL vectors.

Thanks,
  Ken
klopterAsked:
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nietodConnect With a Mentor Commented:
the vector class wasn't really designed with debug/release modes in mind.  The operator [] function does not have to check the index value (in most impilentations it won't check it) and the at() function always has to check the index value.  

You rbest bet might be to use some conditional compilation code that causes at() to be used in debugging and operator [] to be used in release mode.

continues.
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nietodCommented:
for example

#ifdef DEBUG
   GetItem(V,P) V.at(P)
#else
   GetItem(V,P) V[P]
#endif

   *    *    *

vector<int> Vec;

int i = GetItem(Vec,5);

I don't really like using the pre-processor to do macros and that short of thing, but that is probalby the only way you can do this.  (Well you coudl write your own array class, from scratch or based on vector<>, but that might be more thn you want.)
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klopterAuthor Commented:
Bummer.  One of the reasons that I
agreed to switch from arrays to
vectors was to get bounds checking.
There are undoubtably many other good
reasons to convert though.

And, at leastnow I do have some
options for bounds checking.

Ken
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