🚀 go-pugleaf

Dit is een voorbeeldje

#define M 32
#define N 11
#define decimaal_deel(x)	(x- (int) x);

main() 
{
	char a[M];
	float b[N];
	int i;
	int lexico(void *, void *);
	int compare_decimaal_deel(void *, void *);
	// tabel vullen
	qsort(A,M,sizeof(char),lexico);
	// tabel afdrukken

}

int lexico(void *, void *)
{
	char *p = vp, *q = vq;
	return (*p - *q);
}

int compare_decimaal_deel(void *, void *)
{
	float *p = vp, *q = vq, x;
	x =decimaal_deel(*p) - decimaal_deel(*q);
	return((x == 0.0) ? 0 : (x < 0.0) ? -1 : +1);
}


Ares Lagae wrote:
> 
> Ik krijg volgende warning als ik mijn proggie compileer:
> 
> bash-2.03$ gcc main2.c
> /xxxxxx/tmi/dppdoorloop.c: In function `dppdoorloop':
> In file included from main2.c:5:
> /xxxxxx/tmi/dppdoorloop.c:31: warning: passing arg 4 of `qsort' from
> incompatible pointer type


 void qsort(void *base, size_t nmemb, size_t size,
              int (*compar)(const void *, const void *))

dus .. int point_compare(void *, void *) maar in jouw geval wel
aanpassen dan eh


> code vd quicksort:
> qsort(p, (size_t) num_p, (size_t) sizeof(point), point_compare);
> 
> compare functie:
> int point_compare(point *p1, point *p2)     //compare 2 points
> {
>         if ((*p1).x < (*p2).x) {
>                 return -1;
>  `       } else if ((*p1).x == (*p2).x) {
>                 if ((*p1).y < (*p2).y) {
>                         return -1;
>                 } else if ((*p1).y == (*p2).y) {
>                         return 0;
>                 } else {
>                         return 1;
>                 }
>         } else {
>                 return 1;
>         }
> }
> 
> point:
> typedef struct point            // structure to hold a point
> {
>         double  x;
>         double  y;
>  } point;
> 
> --
> Ares Lagae

-- 
Philip van Hoof aka freax        _/_/_/	                                
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Hey, it will happen. They'll _/_/     _/     _/      _/    _/  _/  _/   
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