Warp a écrit :
>   Ok, if you want a harder puzzle, here's a curious quirk about C++ (not
> related to memory leaks, though):
> 
> a) This doesn't compile. Without using a compiler, can you tell where
>    is the problem and what is the exact reason why it doesn't compile?
> 
> b) If you can't see it, try it with a compiler. I bet you still can't see
>    the problem... :P
> 
> c) In the erroneous line, can you tell me exactly what that line means?
> 
> d) What is the easiest way (smallest amount of extra code) to make it
>    compile and work as expected?
> 

Well I have no real idea of what goes wrong but I have a proposition for 
d) :-) Down below...

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Replacing
     std::map<A, int, Comp> theMap(Comp());
with
     Comp c; std::map<A, int, Comp> theMap(c);
seems to do the trick as far as I figure. I don't like those anonymous 
objects anyhow ;-)

A trouble with references or some such ? That prevents the full 
instanciation of the map template ?

-- 
Vincent

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