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1 files changed, 59 insertions, 0 deletions

diff --git a/examples/arena.c b/examples/arena.c
new file mode 100644
index 0000000..32f9d77
--- /dev/null
+++ b/examples/arena.c
@@ -0,0 +1,59 @@
+#define NONSTD_IMPLEMENTATION
+#include "../nonstd.h"
+
+#include <stdio.h>
+
+typedef struct {
+	int id;
+	char *name;
+} User;
+
+int main(void) {
+	// Initialize the arena
+	Arena a = arena_make();
+
+	// Allocate some structs
+	User *u1 = arena_alloc(&a, sizeof(User));
+	u1->id = 1;
+	// Use string builder for name, but we can't easily alloc string builder
+	// internal buffer on arena yet unless we make a custom allocator for it.
+	// For now, let's just use arena_alloc for a string.
+	char *name1 = arena_alloc(&a, 10);
+	strcpy(name1, "Alice");
+	u1->name = name1;
+
+	User *u2 = arena_alloc(&a, sizeof(User));
+	u2->id = 2;
+	char *name2 = arena_alloc(&a, 10);
+	strcpy(name2, "Bob");
+	u2->name = name2;
+
+	printf("User 1: %d, %s\n", u1->id, u1->name);
+	printf("User 2: %d, %s\n", u2->id, u2->name);
+
+	// Creating a linked list using arena
+	struct Node {
+		int val;
+		struct Node *next;
+	};
+
+	struct Node *head = NULL;
+	for (int i = 0; i < 5; i++) {
+		struct Node *node = arena_alloc(&a, sizeof(struct Node));
+		node->val = i;
+		node->next = head;
+		head = node;
+	}
+
+	printf("List: ");
+	for (struct Node *n = head; n; n = n->next) {
+		printf("%d ", n->val);
+	}
+	printf("\n");
+
+	// Free everything at once
+	arena_free(&a);
+	printf("Arena freed.\n");
+
+	return 0;
+}