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C Functions and Structures

📅 2026-06-12 | 📂 C

Functions

int add(int a, int b) {
    return a + b;
}

void greet(char name[]) {
    printf("Hello, %s!\n", name);
}

Structures

struct Point {
    int x;
    int y;
};

struct Point p = {10, 20};
printf("%d, %d", p.x, p.y);

Memory Management

#include <stdlib.h>
int *arr = malloc(5 * sizeof(int));
free(arr);

Summary

malloc/free for dynamic memory
Structs group related data