c++ linker error : undefined reference to a static function

Question

A.h file

class A{
      public:
      static int* func (int &b);
}

A.cpp

int* A::func(int &b){
   //some definition here
}

I am calling the above function in some other file. I have included the .h file in that. When I try to compile I get the following error

undefined reference to A::func(int &)

Are you supplying the compiled object code of A.cpp (let's call it A.obj) to your linker? — paddy
– paddy, Commented Sep 13, 2012 at 4:33
I think first you should get a compiler error of making A::func() as private! The link error could be due to not linking A.o file. — iammilind
– iammilind, Commented Sep 13, 2012 at 4:38
Do you perchance wrap the file in namespace Something { ... }? — paddy
– paddy, Commented Sep 13, 2012 at 4:41

Jonathan Seng · Accepted Answer · 2012-09-13 04:33:12Z

1

The code looks right.

The first thing to check is that your build environment compiled and linked in A.cpp.

answered Sep 13, 2012 at 4:33

Jonathan Seng

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