In C, copying such an array is not possible. What for? and best hack

Question

int x[10],y[10];
x = y;

I mean a simple hack that will allow me to get this effect.

Answer 1

You can wrap them in structto use a simple assignment:

struct foo { int a[10]; } x, y;
x = y;

But really just use it memcpy.

Answer 2

You need to use memcpy(or memmove) to transfer the memory block.

memcpy(x, y, sizeof(x));

Answer 3

memcpy() for (i = 0; < 10; ++)