From: Alexei Sheplyakov <varg@theor.jinr.ru>
Date: Wed, 15 Oct 2008 06:16:07 +0000 (+0400)
Subject: ptr.h: use unsigned int to store reference counts (in order to save memory).
X-Git-Tag: release_1-5-0~52
X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=commitdiff_plain;h=ce9053c15affb2a1a99d1157b85266d70aec601b

ptr.h: use unsigned int to store reference counts (in order to save memory).

We'll hardly ever get more than 2^32 references to the same object. So using
size_t to store reference count only wastes 4 bytes per object (on 64-bit
architecture). Use unsigned int instead.
---

diff --git a/ginac/ptr.h b/ginac/ptr.h
index c8b06912..db7f9582 100644
--- a/ginac/ptr.h
+++ b/ginac/ptr.h
@@ -37,13 +37,13 @@ class refcounted {
 public:
 	refcounted() throw() : refcount(0) {}
 
-	size_t add_reference() throw() { return ++refcount; }
-	size_t remove_reference() throw() { return --refcount; }
-	size_t get_refcount() const throw() { return refcount; }
-	void set_refcount(size_t r) throw() { refcount = r; }
+	unsigned int add_reference() throw() { return ++refcount; }
+	unsigned int remove_reference() throw() { return --refcount; }
+	unsigned int get_refcount() const throw() { return refcount; }
+	void set_refcount(unsigned int r) throw() { refcount = r; }
 
 private:
-	size_t refcount; ///< reference counter
+	unsigned int refcount; ///< reference counter
 };