RE: gcc 3.0 and C++

["Rob Taylor" <robt at flyingpig dot com>]

hmm. ah, my apologies, looks like I jumped the gun a bit there... Language's
ctor is pass-by copy... hmmm ... looking at it a bit longer, this does seem a
bit weird - why on earth would gcc be trying to create a *second* temporary Data
object????

>
> looks like your trying to pass a temporary into a non-const reference. thats a
> BAD THING. modify the constructor of Language to take a const reference or use
> pass-by-copy.
>
> Rob
>
> > I have strange feeling that it's a kind of `something wrong' with
> > gcc. Trying to compile my program on gcc 3.0, have this error:
> >
> > language.cpp: In constructor `LangList::LangList()':
> > language.cpp:285: no matching function for call to `Data::Data(Data)'
> > data.h:13: candidates are: Data::Data(Data&)
> > data.h:11:                 Data::Data(char*)
> > data.h:10:                 Data::Data(long int)
> > language.cpp:285:   initializing argument 1 of
> > `Language::Language(Data)' from
> >    result of `Data::Data(char*)'
> >
> > relevant lines:
> >
> > 				if(S_ISREG(statistics.st_mode))	{
> > 					Language * newlang = new
> > Language(directory->d_name);
> > directory->d_name is char*
> >
> > Language has only one constructor:
> >
> > 	Language(Data);
> >
> >
> > Data is a kind of universal malloc'ed type, that'd be used [in future
> > version :-)] for garbage collection. It can be constructed with:
> >
> > 	Data(long new_size);
> > 	Data(char*s);
> > 	Data();
> > 	Data(Data& new_d);
> >
> >
> > I don't understand, why can't Language(char*) just make it
> > Language(Data(char*)), and why does it complain..
> >
> > I'm sorry if that's not actually bug, and I admit I'm not very good in
> > C++.
> >
> > P.s.: I could send actual preprocessed output, but I guess it'll wait
> > until anyone would actually confirm it's bug.
> >
> > thanks!
> >
> > --
> > You love peace.
> >
>