From 5adbacb8e7856cd56617e788c112e012303bcb82 Mon Sep 17 00:00:00 2001
From: Rob Pike <r@golang.org>
Date: Tue, 5 Aug 2008 11:14:35 -0700
Subject: [PATCH] allow pointers as keys in maps, treating them the same as
 ints - ptr eq not value equality

R=ken,gri
OCL=13879
CL=13879
---
 src/runtime/map.c     | 2 +-
 src/runtime/runtime.c | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/runtime/map.c b/src/runtime/map.c
index 93a985f15e4fb..f945e8c47b5c3 100644
--- a/src/runtime/map.c
+++ b/src/runtime/map.c
@@ -40,7 +40,7 @@ sys·newmap(uint32 keysize, uint32 valsize,
 {
 	Hmap *m;
 
-	if(keyalg >= 2 ||
+	if(keyalg >= 3 ||
 	   valalg >= 3) {
 		prints("0<=");
 		sys·printint(keyalg);
diff --git a/src/runtime/runtime.c b/src/runtime/runtime.c
index 75d23d50d8b5f..ec2951b0af6c9 100644
--- a/src/runtime/runtime.c
+++ b/src/runtime/runtime.c
@@ -777,7 +777,8 @@ pointercopy(uint32 s, void **a, void **b)
 Alg
 algarray[3] =
 {
-	{	&memhash,	&memequal,	&memprint,	&memcopy	},
-	{	&stringhash,	&stringequal,	&stringprint,	&stringcopy	},
-	{	&pointerhash,	&pointerequal,	&pointerprint,	&pointercopy	},
+	{	&memhash,	&memequal,	&memprint,	&memcopy	},  // 0
+	{	&stringhash,	&stringequal,	&stringprint,	&stringcopy	},  // 1
+//	{	&pointerhash,	&pointerequal,	&pointerprint,	&pointercopy	},  // 2
+	{	&memhash,	&memequal,	&memprint,	&memcopy	},  // 2 - treat pointers as ints
 };