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September 22, 2002 Const error should be warning ?? | ||||
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Not sure whether this should only be a warning (haven't mustered the effort to trawl the standard this early in the morning) class X { public: operator const char const * () const { return 0; } }; gives Error: ...: illegal combination of types I expected it to simply tell me that the first (or second) const was superfluous. I don't object to this one in its current form, but am concerned as to whether it means that the compiler would balk in a template class defintion where that template defines a member typedef an a constant type with which it is parameterised, and the parameterising type is itself const. Borland does have problems in this area. Matthew |
September 23, 2002 Re: Const error should be warning ?? | ||||
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Posted in reply to Matthew Wilson | "Matthew Wilson" <dmd@synesis.com.au> wrote in message news:amlfgi$p8$1@digitaldaemon.com... > Not sure whether this should only be a warning (haven't mustered the effort > to trawl the standard this early in the morning) > > class X > { > public: > operator const char const * () const > { > return 0; > } > }; > > gives > > Error: ...: illegal combination of types > > I expected it to simply tell me that the first (or second) const was > superfluous. I believe the standard says it's supposed to be an error, just like short short is an error, and short int short is an error. > I don't object to this one in its current form, but am concerned as to whether it means that the compiler would balk in a template class defintion > where that template defines a member typedef an a constant type with which it is parameterised, and the parameterising type is itself const. Borland does have problems in this area. This should work fine. |
September 23, 2002 Re: Const error should be warning ?? | ||||
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Posted in reply to Walter | > I believe the standard says it's supposed to be an error, just like short short is an error, and short int short is an error.
In which case I prefer the DMC version. Helps me that bit more to validate the code.
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