Question

I want to copy and paste a C function I found in another program into my C++ program.
One of the function arguments uses the “this” pointer.

void cfunction( FILE *outfilefd, const VARTYPEDEFINED this);

The C++ compiler errors here on the function prototype:

error C2143: syntax error : missing ')' before 'this' 

How do I make this C++ usable?

Thanks.

EDIT ( per Betamoo comment )

void cfunction( FILE *outfilefd, const VARTYPEDEFINED this);
    {
    UINT8 temp = 0;

    temp = (UINT8)( this & 0x000000FF );

    if ( ( temp > LIMIT ) )
        ......
    else
    {
          ......
    }
}

Answer 1

You have two choices. You can leave the code as C, and just create a C++ header to let you call that C code from C++:

#ifdef __cplusplus
extern "C" { 
#endif

    void cfunction(FILE *, const VAR);

#ifdef __cplusplus
}
#endif

Or you can rewrite that function enough to get it to compile as C++ (probably just rename its this parameter to something else like thisvar).