From 2c007a8f94d65dc40f638b284db7e374a58b632f Mon Sep 17 00:00:00 2001
From: Tom Willemse
Date: Thu, 8 Jul 2021 02:24:24 -0700
Subject: Chapter 14.1-6

---
 clox/src/memory.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 clox/src/memory.h

(limited to 'clox/src/memory.h')

diff --git a/clox/src/memory.h b/clox/src/memory.h
new file mode 100644
index 0000000..3c4bdb7
--- /dev/null
+++ b/clox/src/memory.h
@@ -0,0 +1,18 @@
+#ifndef clox_memory_h
+#define clox_memory_h
+
+#include "common.h"
+
+#define GROW_CAPACITY(capacity) \
+  ((capacity) < 8 ? 8 : (capacity) * 2)
+
+#define GROW_ARRAY(type, pointer, oldCount, newCount) \
+  (type*)reallocate(pointer, sizeof(type) * (oldCount), \
+                    sizeof(type) * (newCount))
+
+#define FREE_ARRAY(type, pointer, oldCount) \
+  reallocate(pointer, sizeof(type) * (oldCount), 0)
+
+void* reallocate(void* pointer, size_t oldSize, size_t newSize);
+
+#endif
-- 
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