How to modify multiple elements at a time in C?

Question

Say I got an array

unsigned char digit[] = {0, 1, 2, 3, 4, 5, 6, 7};

Yet I want to modify part of the array, make the array become something like:

{0, 1, 2, 3, 0, 0, 0, 0}

Enumerate every element I want to modify and alter them might take some effort. Especially when there's a large amount of elements I want to change. I know in some languages like Python I may do something using a single line of code:

a = np.array([0, 1, 2, 3, 4, 5, 6, 7])
a[4:] = [0, 0, 0, 0]
//a: array([0, 1, 2, 3, 0, 0, 0, 0])

So I wonder, is there a similar way to do that in C?

Answer 1

There are fewer possibilities in C, but in case of an unsigned char and setting its values to zero you could use memset:

memset(&digit[4], 0, 4);

Demo.

Answer 2

One options is that you could write a subroutine that would implement the interface that other languages provide "under the cover". You'll probably want to educate yourself on 'VARARGS' to make it take a variable number of arguments.