1 files changed, 57 insertions, 0 deletions
diff --git a/vec.c b/vec.c
new file mode 100644
index 0000000..84f6944
--- /dev/null
+++ b/vec.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 2025 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 Unlicense
+ * for details.
+
+ * You may distribute and modify this code under the terms of the
+ * Unlicense, which you should have received a copy of along with this
+ * program.  If not, please go to <https://unlicense.org/>.
+
+ * Created: 2025-08-20
+ * Description: Stable Vector implementation
+ */
+
+#include <malloc.h>
+#include <string.h>
+
+#include "./alisp.h"
+
+void vec_free(vec_t *vec)
+{
+  if (!vec)
+    return;
+  if (vec->data)
+    free(vec->data);
+  memset(vec, 0, sizeof(*vec));
+}
+
+void vec_ensure_free(vec_t *vec, u64 size)
+{
+  if (!vec)
+    return;
+  if (vec->capacity - vec->size < size)
+  {
+    vec->capacity = MAX(vec->capacity * VEC_MULT, vec->size + size);
+    vec->data     = realloc(vec->data, vec->capacity);
+  }
+}
+
+void vec_append(vec_t *vec, void *ptr, u64 size)
+{
+  if (!vec)
+    return;
+  vec_ensure_free(vec, size);
+  memcpy(vec->data + vec->size, ptr, size);
+  vec->size += size;
+}
+
+void vec_clone(vec_t *dest, vec_t *src)
+{
+  if (!src || !dest)
+    return;
+  dest       = src;
+  dest->data = calloc(1, dest->capacity);
+  memcpy(dest->data, src->data, src->size);
+}