What is the maximum number of characters that can be held in the string variable char address[40]?
a) 39
b) 40
c) 41
d) 38
Answer:
a) 39
Explanation:
The maximum number of characters that can be held in the string variable char address[40] is 39 because one space is reserved for the null terminator ('\0'), which marks the end of the string. If you attempt to store 40 characters, you will overwrite the null terminator, leading to undefined behavior when the string is processed.
Understanding the role of the null terminator is crucial for correctly managing string variables and avoiding common errors like buffer overflows.