Chapter 7: Problem 20

C++ has no array _________ checking, which means you can inadvertently store data past the end of an array.

Short Answer

Expert verified

Answer: The lack of array bounds checking in C++ can lead to unexpected results, memory issues, or crashes when attempting to store data past the end of an array. This occurs because the program allows data to be written beyond the allocated memory for the array, potentially overwriting other data or causing memory access violations. It is essential to be cautious when working with arrays in C++ and ensure that you stay within the array's bounds to prevent these issues.

Step by step solution

Declare an array in C++ with a fixed size

In C++, declare an array with a fixed size like this: ``` int myArray[5]; ``` This array can store up to 5 integer values with indices ranging from 0 to 4.

Store data in the array

Assuming we want to store the numbers 1 to 5 in the array, we can do this using a for loop: ``` for (int i = 0; i < 5; i++) { myArray[i] = i + 1; } ```

Incorrectly store data past the end of the array

Here, we'll attempt to store a value in the 6th position, which is index 5 (since arrays are zero-indexed): ``` myArray[5] = 42; ``` This line of code demonstrates the lack of array bounds checking feature in C++. It won't produce any errors, but it's writing data past the end of the array, potentially causing memory issues or crashes when the program runs. Always be cautious when working with arrays in C++ and ensure that you stay within the array's bounds to prevent these issues.

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C++ has no array _________ checking, which means you can inadvertently store data past the end of an array.

Short Answer

Step by step solution

Declare an array in C++ with a fixed size

Store data in the array

Incorrectly store data past the end of the array

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