I have a question in C programing

Question

Hi

I have a question in C programing.

Do you the meaning of s[N]= '\0' (we put null character in an array)?

Thanks

Answer 1

That is exactly what it means.

You are setting the value of position N of array s to the null character.

Answer 2

put a 0 into the N-th element of array s.

i tried this:

int s[3];

s[2] = 10<<20;

s[2] = '\0';

and

s[2] = 10;

s[2] = '\0';

in both cases the result is 0 (with gcc) so I deduce that '\0' (that should be a single char, 0 byte) is casted the right way to int, so the result is the right one (put a null byte at the nth position into the array)

Answer 3

You're putting a null character at the Nth position of array s.  S is probably a string (array of characters) and the null character '\0' marks the end of the string.