From: Chris Dams <Chris.Dams@mi.infn.it>
Date: Mon, 7 Aug 2006 16:50:21 +0000 (+0000)
Subject: Improved the comments explaining what the class ex does.
X-Git-Tag: release_1-4-0~76
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=f8cd4812fd1a238d85c183ac7c01a2ee9e7fd00b;ds=sidebyside

Improved the comments explaining what the class ex does.
---

diff --git a/ginac/ex.h b/ginac/ex.h
index 60ffa129..574e6800 100644
--- a/ginac/ex.h
+++ b/ginac/ex.h
@@ -65,10 +65,11 @@ class const_preorder_iterator;
 class const_postorder_iterator;
 
 
-/** Lightweight wrapper for GiNaC's symbolic objects.  Basically all it does is
- *  to hold a pointer to the other objects, manage the reference counting and
- *  provide methods for manipulation of these objects.  (Some people call such
- *  a thing a proxy class.) */
+/** Lightweight wrapper for GiNaC's symbolic objects.  It holds a pointer to
+ *  the other object in order to do garbage collection by the method of
+ *  reference counting.  I.e., it is a smart pointer.  Also, the constructor
+ *  ex::ex(const basic & other) calls the methods that do automatic
+ *  evaluation.  E.g., x-x turns automatically into 0. */
 class ex {
 	friend class archive_node;
 	friend inline bool are_ex_trivially_equal(const ex &, const ex &);