From 9f2f713fcd950a559e318b90dfc6ab11b7014aea Mon Sep 17 00:00:00 2001
From: oliskoli <oliskoli@f51c46e8-681c-474f-0cfe-069cfd0219fb>
Date: Thu, 21 Aug 2008 22:01:43 +0000
Subject: [PATCH] defs/util: Add functions to assign (compiler friendly) an int
 to a pointer and back.

---
 gpsbabel/defs.h |  3 +++
 gpsbabel/util.c | 27 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/gpsbabel/defs.h b/gpsbabel/defs.h
index 4f774cd8b..891d4cd9e 100644
--- a/gpsbabel/defs.h
+++ b/gpsbabel/defs.h
@@ -951,6 +951,9 @@ typedef enum {
 char gb_getbit(const void *buf, const gbuint32 nr);
 void gb_setbit(void *buf, const gbuint32 nr);
 
+void *gb_int2ptr(const int i);
+int gb_ptr2int(const void *p);
+
 /*
  *  From parse.c
  */
diff --git a/gpsbabel/util.c b/gpsbabel/util.c
index 175f42750..4fdd2bb7c 100644
--- a/gpsbabel/util.c
+++ b/gpsbabel/util.c
@@ -1760,3 +1760,30 @@ char gb_getbit(const void *buf, const gbuint32 nr)
 	return (bytes[nr / 8] & (1 << (nr % 8)));
 	
 }
+
+/*
+ * gb_int2ptr: Needed, when sizeof(*void) != sizeof(int) ! compiler warning !
+ */
+void *gb_int2ptr(const int i)
+{
+	union {
+		void *p;
+		int i;
+	} x = { NULL };
+
+	x.i = i;
+	return x.p;
+}
+
+/*
+ * gb_ptr2int: Needed, when sizeof(*void) != sizeof(int) ! compiler warning !
+ */
+int gb_ptr2int(const void *p)
+{
+	union {
+		const void *p;
+		int i;
+	} x = { p };
+
+	return x.i;
+}
-- 
2.30.2