The code int x = 0; while (s[x] != 0) { x++;}
A) sets the variable x to point to the last character in the C-string s.
B) computes the length of the C-string s into the variable x.
C) sets the variable x to the ASCII code of the last character in the C-string s.
D) sets the value of the variable x to 0.
E) None of the above

Question

Quizplus · Accepted Answer

The code uses a while loop to iterate through the C-string s until it finds the null character (represented by the ASCII value 0). Each iteration increments the value of x. When the loop finishes, x will hold the number of characters in s before the null character, which is the length of the C-string s. Therefore, choice B is correct.

The Code Int X = 0; While (S[x] != 0)