agrego practicas

c/arena-lib/arena.h

@@ -0,0 +1,29 @@
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#define ARENA_MEMORY_ALIGN 8
+
+typedef struct Chunk{
+    size_t size;
+    size_t offset;
+    unsigned char *buffer;
+    struct Chunk *next;
+}Chunk;
+
+typedef struct{
+    Chunk *current;
+    Chunk *first;
+}Arena;
+
+Arena arena_create(size_t);
+void* arena_alloc(Arena*, size_t);
+void arena_free(Arena*);
+void arena_print(Arena*);
+
+Chunk* arena_chunk_create(size_t);
+void arena_chunk_free(Chunk*);
+void* arena_chunk_alloc(Arena*, Chunk*, size_t);
+
+char* arena_strdup(Arena*, const char*);