Re: [Dev-C++] Templates, Dev-Cpp and C++

[Abdelkader G. <go...@li...>]

Hi there,

Your code is well written, it should compile and run, just check that you 
have compiled correctly the 'file.C' (rename it to .cpp :) or delete all 
old *.o files and recompile all the project.

Kind regards,


> This is my first 'class template', so I am sure I am doing something 
> wrong. Can anyone help?
> 
> TIA
> ------ file.H ------
> namespace jme{
>     template<class K, class D>
>     class Index{
>        protected:
>           K Key;
>           D Data;
> 
>        public:
>            // C'tor
>            Index(K kx, D dx);
>            ~Index();
>     };
> }
> ------ file.C ------
> template<class K, class D>
> jme::Index<K,D>::Index(K kx, D dx){
>     Key = kx;
>     Data = dx;
> }
> template<class K, class D>
> jme::Index<K,D>::~Index(){ }
> ------ main.C ------
> int main(){
>     int i = 50;
>     std::string name("Maya");
>     jme::Index<int, std::string> ndx(i,name);
>     return 0;
> }
> ------ Error message ------
> main.o(.text+0xb9):main.C: undefined reference to `jme::Index<int, 
> std::string>::Index(int, std::string)'
> main.o(.text+0x12c):main.C: undefined reference to `jme::Index<int, 
> std::string>::~Index()'
> main.o(.text+0x152):main.C: undefined reference to `jme::Index<int, 
> std::string>::~Index()'
> -- 
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