write a program to Multiplication of two number using macros in c

28 Dec 2022 Balmiki Mandal 0

C Program to Multiply Two Numbers Using Macros

"Write a program to Multiplication of two numbers using macros in C" means that you are required to create a C program that uses a macro to multiply two numbers entered by the user, without using the multiplication operator (*). Instead, the macro should define a function-like syntax that performs the multiplication operation on the two numbers.

The program should prompt the user to input two numbers, call the macro to multiply them, and display the result of the multiplication on the screen. The program should also handle any errors that may occur during the multiplication process, such as integer overflow.

To write a program to multiply two numbers using macros in C, we can use the following steps:

Define a macro that takes two numbers as input and returns their product.
Declare two variables to store the two numbers that we want to multiply.
Use the macro to multiply the two numbers and store the result in a third variable.
Print the result to the console.

Here is a simple C program to multiply two numbers using a macro:

C program

#define MUL(x, y) (x * y)

int main() {
  int num1, num2, product;

  printf("Enter two numbers: ");
  scanf("%d %d", &num1, &num2);

  product = MUL(num1, num2);

  printf("The product of %d and %d is %d\n", num1, num2, product);

  return 0;
}

Output:

Enter two numbers: 10 20
The product of 10 and 20 is 200

We can also use the macro to multiply two numbers in an expression. For example, the following code will print the product of 10 and 20 to the console:

C program

#define MUL(x, y) (x * y)

int main() {
  printf("The product of 10 and 20 is %d\n", MUL(10, 20));

  return 0;
}

Output:

The product of 10 and 20 is 200

Macros can be a useful way to make our code more concise and readable. However, it is important to use them carefully, as they can also make our code more difficult to debug.

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