C Language: C program to define Macro to find maximum/minimum of two numbers

Last update on December 20 2024 13:02:30 (UTC/GMT +8 hours)

C – Macro to find maximum/minimum of two numbers.

In computer programming, a macro is a rule or pattern that specifies how a certain input should be mapped to a replacement output. Applying a macro to an input is known as macro expansion.

Here are the macros for maximum and minimum:

#define MAX(x, y) ((x) > (y) ? (x) : (y))

#define MIN(x, y) ((x) < (y) ? (x) : (y))

Example:

Code:

# include <stdio.h>

#define MAX(x, y) ((x) > (y) ? (x) : (y))
#define MIN(x, y) ((x) < (y) ? (x) : (y))

int main() {
    int a = 45, b = 34;
    printf("The Maximum of %d and %d is %d\n", a, b, MAX(a, b));
    printf("The Minimum of %d and %d is %d\n", a, b, MIN(a, b));
    return 0;
}

Output:

The Maximum of 45 and 34 is 45
The Minimum of 45 and 34 is 34

In the above code, the MAX and MIN macros are defined using the ternary operator to check which of the two numbers is larger or smaller. The macros take two arguments x and y, representing the two numbers to be compared.

The main() function calls the macros with two integer values a and b, and the results are printed to the console.