#include <stdio.h>
#include <string.h>
 
int func(size_t,void*,void*,size_t);
int main(){
        /* arrays and numbers to search in each array*/
        int arrInt[]={3,4,5,15,6,24,7,13,12};
        double arrD[]={1.1,1.4,1.5,2.2,7.6,10.2};
        long arrL[]={10,20,30,40,50,60};
        int i2s=7;
        double d2s=7.6;
        long l2s=40;
 
        int x = func(sizeof(int), arrInt, &i2s, 9);
        int y = func(sizeof(double), arrD, &d2s, 6);
        int z = func(sizeof(long), arrL, &l2s, 6);
        printf("%d %d %d\n", x, y, z);
}
 
int func(size_t size,void *arr,void* pnum,size_t arrSize){
        for (int i=0 ; i != arrSize ; i++, arr = ((char*)arr)+size ) {
                if(memcmp(arr, pnum, size)==0)
                        return i+1;
        }
        return -1;
}

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