The provided function `int intLength(int x)` calculates and returns the...

The provided function int intLength(int x) calculates and returns the number of digits in the integer x. Here's a breakdown of what the code does:

1. Edge case for x == 0:

   • If x is 0, the function immediately returns 1, because the number 0 has exactly one digit.

2. Handle negative numbers:

   • The std::abs(x) function is used to take the absolute value of x, ensuring that the function works correctly for both positive and negative numbers.

3. Initialize variables:

   • y is assigned the absolute value of x.
   • size is initialized to 0, and it will be used to count the number of digits.

4. Loop:

   • A while loop iterates as long as y >= 1. In each iteration:
     • size is incremented by 1, representing an additional digit of the integer.
     • y is divided by 10 (using integer division) to "remove" the last digit by shifting all digits to the right.

5. Return result:

   • Once y becomes less than 1 (i.e., all digits have been processed), the function exits the loop and returns the size, which represents the total number of digits in the integer x.

Examples:

1. intLength(0) → Returns 1 (since 0 has one digit).
2. intLength(123) → Returns 3 (123 has three digits).
3. intLength(-4567) → Returns 4 (the absolute value 4567 has four digits).
4. intLength(10000) → Returns 5 (10000 has five digits).