#include<stdio.h>
#include<stdlib.h>
#include<string.h>



/*La fonction map permet de parcourir le tableau. */
void map(void *base,size_t n ,size_t size_elem,void(*f)(void *)){
	int i;
	char *ptr = (char*)base; 
	for(i=0;i<n;i++) 
		f((void*)(ptr+i*size_elem)); 
}

void print_int (void * i) {
	printf("%d\n", *(int *)i ); // On force à le mettre en int
}

int cmp_int (const void* first, const void* second ) {
	int firstInt = *(const int*)first;
	int secondInt = *(const int*)second;
	
	return firstInt - secondInt;
}


void print_string (void * s) {
	printf ("%s", *(char* *)s ); // char* * => un pointeur sur un tableau de caractère
}


int cmp_string (const void* a, const void* b) {
	const char* *ia = (const char* *)a;
    const char* *ib = (const char* *)b;

    return strcmp(*ia, *ib);
}



int main(){

	int    t1[10]={12,-7,1,-16,3,19,7,1,5,0};
	char * t2[]={"chou","joujou","bijou","genou",
		"caillou","hibou","pou"};

		map(t1,10,sizeof(int),print_int);
		printf("\n");
		map(t2,7,sizeof(char*),print_string);
		printf("\n");
		qsort(t1,10,sizeof(int),cmp_int);
		map(t1,10,sizeof(int),print_int);
		printf("\n");
		qsort(t2,7,sizeof(char *),cmp_string);
		map(t2,7,sizeof(char*),print_string);
		printf("\n");
		
}