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+--- Thread: Creating and using header files in C (/showthread.php?tid=5108)
Creating and using header files in C - Qomplainerz - 07-25-2023
Header files contain function prototypes and other declarations.
// math_operations.h
#ifndef MATH_OPERATIONS_H
#define MATH_OPERATIONS_H
int add(int a, int b);
int subtract(int a, int b);
#endif
// math_operations.c
#include "math_operations.h"
int add(int a, int b) {
return a + b;
}
int subtract(int a, int b) {
return a - b;
}
// main.c
#include <stdio.h>
#include "math_operations.h"
int main() {
int result = add(10, 5);
printf("Addition: %d\n", result); // Output: 15
result = subtract(10, 5);
printf("Subtraction: %d\n", result); // Output: 5
return 0;
}