From 6334908e209fc0de7c2dea95ff2808c5bbd71735 Mon Sep 17 00:00:00 2001
From: Christian Bauer <Christian.Bauer@uni-mainz.de>
Date: Mon, 21 Jul 2003 17:44:38 +0000
Subject: [PATCH] more efficient default is_exactly_a<>()

---
 ginac/basic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ginac/basic.h b/ginac/basic.h
index 264462f9..d9b716a4 100644
--- a/ginac/basic.h
+++ b/ginac/basic.h
@@ -176,7 +176,7 @@ extern int max_recursion_level;
 template <class T>
 inline bool is_a(const basic &obj)
 {
-	return dynamic_cast<const T *>(&obj)!=0;
+	return dynamic_cast<const T *>(&obj) != 0;
 }
 
 /** Check if obj is a T, not including base classes.  This one is just an
@@ -185,7 +185,7 @@ inline bool is_a(const basic &obj)
 template <class T>
 inline bool is_exactly_a(const class basic &obj)
 {
-	const T foo; return foo.tinfo()==obj.tinfo();
+	return obj.tinfo() == T::reg_info.tinfo_key;
 }
 
 } // namespace GiNaC
-- 
2.47.0