move to src folder

src/vec.h

@@ -0,0 +1,55 @@
+/* vec.h: Vectors
+ * Created: 2026-03-10
+ * Author: Aryadev Chavali
+ * License: See end of file
+ * Commentary:
+ Taken from https://github.com/oreodave/prick - prick_vec.
+ */
+
+#ifndef VEC_H
+#define VEC_H
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#define VEC_INLINE_CAPACITY 32
+#define VEC_MULT            2
+
+typedef struct
+{
+  uint64_t size, capacity;
+  uint8_t not_inlined;
+  union
+  {
+    void *ptr;
+    alignas(max_align_t) uint8_t inlined[VEC_INLINE_CAPACITY];
+  };
+} vec_t;
+
+static_assert(sizeof(vec_t) == 64, "Expected sizeof(vec_t) to be 64");
+
+void vec_append(vec_t *vec, const void *const ptr, uint64_t size);
+void vec_append_byte(vec_t *vec, uint8_t byte);
+void *vec_data(vec_t *vec);
+void vec_ensure_capacity(vec_t *vec, uint64_t capacity);
+void vec_ensure_free(vec_t *vec, uint64_t size);
+void vec_free(vec_t *vec);
+void vec_clone(vec_t *v2, vec_t *v1);
+
+#define VEC_GET(VEC, INDEX, TYPE) (((TYPE *)vec_data(VEC))[INDEX])
+
+#endif
+
+/* Copyright (C) 2026 Aryadev Chavali
+
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License Version 2 for
+ * details.
+
+ * You may distribute and modify this code under the terms of the GNU General
+ * Public License Version 2, which you should have received a copy of along with
+ * this program.  If not, please go to <https://www.gnu.org/licenses/>.
+
+ */