Add primitives, hash map and dynamic array

include/htd/data_structure/dynamic_array.h

@@ -0,0 +1,22 @@
+#ifndef DYNAMIC_ARRAY_H
+#define DYNAMIC_ARRAY_H
+
+#include <htd/primitives/primitives.h>
+
+typedef struct {
+    void *data;
+     
+    usize len;
+    usize data_size;
+    usize capacity;
+} DynamicArray;
+
+void dynarr_init(DynamicArray* arr, usize size);
+
+void* dynarr_at(DynamicArray* arr, usize idx);
+
+void dynarr_push(DynamicArray* arr, void* data);
+
+void dynarr_free(DynamicArray* arr);
+
+#endif // DYNAMIC_ARRAY_H

include/htd/data_structure/hash_map.h

@@ -0,0 +1,28 @@
+#ifndef HTD_HASH_MAP_H
+#define HTD_HASH_MAP_H
+
+#include <htd/primitives/primitives.h>
+
+typedef struct {
+    void* key;
+    void* val;
+} HashMapEntry;
+
+typedef struct {
+    HashMapEntry* table;
+
+    usize len;
+    usize capacity;
+    usize key_size;
+    usize val_size;
+} HashMap;
+
+void hmap_init(HashMap* hmap, usize key_size, usize val_size);
+
+void hmap_put(HashMap* hmap, const void* key, const void* val);
+
+void* hmap_get(HashMap* hmap, const void* key);
+
+void hmap_free(HashMap* hmap);
+
+#endif // HTD_HASH_MAP_H

include/htd/primitives/primitives.h

@@ -0,0 +1,24 @@
+#ifndef PRIMITIVES_H
+#define PRIMITIVES_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef int8_t i8;
+typedef int16_t i16;
+typedef int32_t i32; 
+typedef int64_t i64;
+
+typedef uint8_t u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+typedef uint64_t u64;
+
+// Floats not guaranteed per IEEE 754, but for use case it's fine
+typedef float f32;
+typedef double f64;
+
+typedef size_t usize;
+typedef ptrdiff_t isize;
+
+#endif // PRIMITIVES_H