Question

I am getting a parameter name omitted error with this code

#include <GL3/gl3w.h>

void f(int near, int far) {

}

int main() {
    return 0;
}

From this question I suspected gl3w included WinDef.h but I am not able to find it included in the sources. What is the source of this problem and how can it be corrected?

Answer 1

near and far were used to indicate types of pointers, and are likely to be defined as

#define near
#define far

Which leaves you with

void f(int , int )
{

}

Which is an invalid function definition in C. (arguments must have a name). either undefine them (#undef) or change the argument names. Note that this is not a problem in function declaration (i.e. void foo(int, int); – as in header files) only in function definitions.

Specifically, gl3w.h contains gl3.h which contains windows.h