1 files changed, 10 insertions, 9 deletions
diff --git a/vec.c b/vec.c
index 58977dc..8923f19 100644
--- a/vec.c
+++ b/vec.c
@@ -1,18 +1,20 @@
 #include <string.h>
 
+#include "assert.h"
 #include "vec.h"
 
-Vec *_Vec_new(Arena *a, int size, ptrdiff_t cap, int align) {
-  Vec *v = new (a, Vec, 1);
-  v->data = alloc(a, cap, size, align);
-  v->size = size;
-  v->align = align;
-  v->cap = cap;
-  v->len = 0;
+Vec _Vec_new(Arena *a, int size, ptrdiff_t cap, int align) {
+  assert(cap > 0);
+  Vec v = {0};
+  v.data = alloc(a, cap, size, align);
+  v.size = size;
+  v.align = align;
+  v.cap = cap;
+  v.len = 0;
   return v;
 }
 
-Vec *Vec_push(Arena *a, Vec *v, void *data) {
+void Vec_push(Arena *a, Vec *v, void *data) {
   if (v->len == v->cap) {
     void *cpy = alloc(a, v->cap * 2, v->size, v->align);
     memcpy(cpy, v->data, v->len * v->size);
@@ -20,7 +22,6 @@ Vec *Vec_push(Arena *a, Vec *v, void *data) {
   }
   memcpy(v->data + v->len * v->size, data, v->size);
   v->len++;
-  return v;
 }
 
 void *_Vec_get(Vec *v, int pos) {