*

src/core/dynarray.c

@@ -0,0 +1,24 @@
+#include "dynarray.h"
+#include <string.h>
+
+void growl_dynarray_grow(void *slice, ptrdiff_t size, ptrdiff_t align,
+                         GrowlArena *a) {
+  struct {
+    uint8_t *data;
+    ptrdiff_t len;
+    ptrdiff_t cap;
+  } replica;
+  memcpy(&replica, slice, sizeof(replica));
+  if (!replica.data) {
+    replica.cap = 1;
+    replica.data = growl_arena_alloc(a, 2 * size, align, replica.cap);
+  } else if (a->free == replica.data + size * replica.cap) {
+    growl_arena_alloc(a, size, 1, replica.cap);
+  } else {
+    void *data = growl_arena_alloc(a, 2 * size, align, replica.cap);
+    memcpy(data, replica.data, size * replica.len);
+    replica.data = data;
+  }
+  replica.cap *= 2;
+  memcpy(slice, &replica, sizeof(replica));
+}