Pointer to an CallBack

[David Smulders]

Is it posible to make a sort function with an pointer to an callback?

//...
void Sort(LPCSTR *CallBackName) // This can't compile....!!
{
        qsort(this->GetData(), this->GetSize(), sizeof(ARG_T), CallBackName);
//... 

[wayside]

The prototype for qsort is

void qsort(
   void *base,
   size_t num,
   size_t width,
   int (__cdecl *compare )(const void *, const void *) 
);

So the function you want must have the same prototype as the compare function:

int compare( const void *arg1, const void *arg2 )
{
     ARG_T *argT_1 = (ARG_T *)arg1;
     ARG_T *argT_2 = (ARG_T *)arg2;

    if (argT_1 > argT_2 ) return 1;
    else if (argT_1 < argT_2) return -1;
    else return 0;
}

void Sort(int (__cdecl *CallBackName)(const void *, const void *) ) {

qsort(this->GetData(), this->GetSize(), sizeof(ARG_T), CallBackName);

}

[David Smulders]

Thanks!!!