Re: [Boost-users] [BULK] Re: [range] From 1.33.0 gives new warningvs 1.32

"Thorsten Ottosen" writes:

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perhaps something like this is needed?

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template< class Char > inline Char* str_end( Char* s ) { - return (Char*)str_end( s, s ); + return const_cast(str_end( s, s ));

what's the difference? A c-style cast is also a const-cast.

You didn't just say that.

Apparently I did.

I must admit I was surprised, too.

What's the difference in the generated object code?

Thorsten, the difference is in fragility over time with maintenance. That's why the compiler issues the warning. Any decent beginner's book on C++ will advise you to eschew all casts, and prefer the new-style ones. Do you really need to have the fundamentals of good C++ programming practice explained? Incidentally, if you find that the proper C++ construct is "less portable. somehow." you should use BOOST_WORKAROUND to isolate the compiler for which it fails to work, if only so that the reason for the workaround is documented. -- Dave Abrahams Boost Consulting www.boost-consulting.com