From 8e0aed664a16a2ef0833a39d24fcb463cdd0b610 Mon Sep 17 00:00:00 2001
From: Glenn Maynard <gmaynard@users.sourceforge.net>
Date: Tue, 25 Jan 2005 00:21:21 +0000
Subject: [PATCH] Increment, Decrement

---
 stepmania/src/RageUtil.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/stepmania/src/RageUtil.h b/stepmania/src/RageUtil.h
index a0e601e5be..8a4617deac 100644
--- a/stepmania/src/RageUtil.h
+++ b/stepmania/src/RageUtil.h
@@ -266,6 +266,12 @@ int FindIndex( T1 begin, T1 end, const T2 *p )
 	return iter - begin;
 }
 
+/* Useful for objects with no operator-, eg. map::iterator (more convenient than advance). */
+template<class T>
+T Increment( T a ) { ++a; return a; }
+template<class T>
+T Decrement( T a ) { --a; return a; }
+
 void TrimLeft(CString &str, const char *s = "\r\n\t ");
 void TrimRight(CString &str, const char *s = "\r\n\t ");
 void StripCrnl(CString &s);