From 9464f2ca23937508108adb2295574f31696c91fe Mon Sep 17 00:00:00 2001
From: Alessandro Mauri <alemauri001@gmail.com>
Date: Mon, 13 Mar 2023 20:11:43 +0100
Subject: [PATCH] add a way to disable stack hashing

---
 text_rendering/generic_stack.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/text_rendering/generic_stack.h b/text_rendering/generic_stack.h
index 85d0216..b3d5f1e 100644
--- a/text_rendering/generic_stack.h
+++ b/text_rendering/generic_stack.h
@@ -8,6 +8,9 @@
 // FIXME: find a way to not re-hash the whole stack when removing one item
 
 // incremental hash for every grow
+#if STACK_DISABLE_HASH
+#define STACK_HASH(p, s, h) {}
+#else
 #define STACK_HASH(p, s, h)                                                    \
 {                                                                              \
 	unsigned char *v = (unsigned char *)(p);                               \
@@ -20,6 +23,7 @@
   	(h) ^= (h) >> 11;                                                      \
   	(h) += (h) << 15;                                                      \
 }
+#endif
 
 
 // TODO: add a rolling hash