definition of dllimport function not allowed

Question

While compiling a C code, I\'m getting the following error:

c:\\users\\kbarman\\documents\\mser\\vlfeat-0.9.13-try\\mser\\stringop.c(71): error C2491: \'vl_s         


        

Answer 1

You are saying that the function is external, defined in a Dll. And then you are defining it in your code. This is illegal since is has to be one or the other, but not both external and internal.

My guess is that you simply need to change dllimport to dllexport. I assume that you are building this code into a library.

Answer 2

As documentation states, dllimport function are not allowed to have a body right there.

[...] functions can be declared as dllimports but not defined as dllimports.

// function definition
void __declspec(dllimport) funcB() {}   // C2491

// function declaration
void __declspec(dllimport) funcB();   // OK