Chapter 7: Problem 13

When writing a function that accepts a two-dimensional array as an argument, which size declarator must you provide in the parameter for the array?

Short Answer

Expert verified

Answer: To declare a function that accepts a two-dimensional array as an argument, you must specify the array type and dimensions in the parameter, providing the number of columns as the size declarator. For example, in the function prototype, use the following format: void displayArray(int arr[][4], int rows); The size declarator (number of columns) must also be provided in the function definition.

Step by step solution

Understand the Problem

In order to write a function that accepts a two-dimensional array as an argument, we need to know the correct way to declare it, especially the size declarator for the array.

Array Declaration

When declaring a two-dimensional array, it's essential to provide its dimensions (i.e., rows and columns). For instance, a 3x4 array can be declared as: int arr[3][4];

Function Declaration

When writing a function that accepts a two-dimensional array, the parameter should specify the array type and dimensions. In the case of the function prototype, only the size declarator (number of columns) must be provided: void displayArray(int arr[][4], int rows);

Function Definition

When defining the function, you must again provide the size declarator (number of columns) for the array parameter: void displayArray(int arr[][4], int rows) { /* Function body */ };

Function Call

When calling the function, we simply pass the name of the array as an argument, without specifying its dimensions: int main() { int arr[3][4] = {{1, 2, 3, 4}, {5, 6, 7, 8}, {9, 10, 11, 12}}; displayArray(arr, 3); return 0; } In conclusion, when declaring a function that accepts a two-dimensional array as an argument, one must provide the number of columns as the size declarator in the parameter for the array.

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When writing a function that accepts a two-dimensional array as an argument, which size declarator must you provide in the parameter for the array?

Short Answer

Step by step solution

Understand the Problem

Array Declaration

Function Declaration

Function Definition

Function Call

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