c - Why does this function not correctly multiply the values in the array by the given multiple? -

i'm trying write function in c takes pointer array , returns pointer values multiplied multiple. have:

int* returnnpledarray(int *a, int n){     int = 0;      for(i = 0; < size; i++){         *a++ *= n;     }     return a; } 

but when call it, in main way:

    int sample2[] = {-10,-8,-6,-4,-2,0,2,4,6,8};     returnnpledarray(sample2, 3);      int d = 0;     (d = 0; d < size; d++){         printf("%d\n", *sample2);      } 

the entire array prints out first value in multiplied n. thought because in function, *a++ *= n; both dereferencing value @ spot in , incrementing pointer. how can work?

you have following in loop:

for (d = 0; d < size; d++){     printf("%d\n", *(sample2 + d)); } 

or

for (d = 0; d < size; d++){     printf("%d\n", sample2[d]); }