Re: [RFC] std::string(0);

[Daniel Frey <daniel dot frey at aixigo dot de>]

Martin Sebor wrote:
> Daniel Frey wrote:
>
> > b) Ask the compiler folks to detected these cases and emit a warning.
> > Bonus points for suppressing the warning on dead code branches like 
> > above. Sadly, I suppose it's ways more work than adding one or two 
> > lines to the STL implementation. Any volunteers? ;)
>
> I don't think this would work, either. The compiler may not be
> able to tell whether a branch of code is dead or not. Consider
> this:
>
>      #include <string>
>      int main (int argc, char**) {
>          if (argc > 1) std::string (0);
>      }
>
> Martin

That's why it should be a warning, not an error. I think it's very 
likely that std::string(0) is an error, remember my original example of 
a parameter. Question is, which compiler options invoke the warning.

Regards, Daniel

--
Daniel Frey

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