From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 2 Sep 2012 14:30:54 +0000 (+0300)
Subject: Memory allocation changes
X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=commitdiff_plain;h=77656543441a130276e0a37ba119270edd9156ff

Memory allocation changes

Use std::copy instead of memcpy
Call operator= from copy constructor
Allocate memory only when needed, not one byte before
---

diff --git a/source/vertexformat.cpp b/source/vertexformat.cpp
index 65b276ba..0a26d942 100644
--- a/source/vertexformat.cpp
+++ b/source/vertexformat.cpp
@@ -1,4 +1,4 @@
-#include <cstring>
+#include <algorithm>
 #include <msp/strings/format.h>
 #include <msp/strings/lexicalcast.h>
 #include <msp/strings/utils.h>
@@ -24,11 +24,7 @@ VertexFormat::VertexFormat(VertexComponent c):
 VertexFormat::VertexFormat(const VertexFormat &f):
 	data(0)
 {
-	if(f.data)
-	{
-		data = new unsigned char[(f.data[0]&~7)+8];
-		memcpy(data, f.data, f.data[0]+1);
-	}
+	*this = f;
 }
 
 VertexFormat &VertexFormat::operator=(const VertexFormat &f)
@@ -37,7 +33,7 @@ VertexFormat &VertexFormat::operator=(const VertexFormat &f)
 	if(f.data)
 	{
 		data = new unsigned char[(f.data[0]&~7)+8];
-		memcpy(data, f.data, f.data[0]+1);
+		copy(f.data, f.data+f.data[0]+1, data);
 	}
 	else
 		data = 0;
@@ -56,10 +52,10 @@ VertexFormat VertexFormat::operator,(VertexComponent c) const
 	if(r.data)
 	{
 		const unsigned char n = ++r.data[0];
-		if((n&7)==7)
+		if((n&7)==0)
 		{
-			unsigned char *newdt = new unsigned char[n+9];
-			memcpy(newdt, r.data, n);
+			unsigned char *newdt = new unsigned char[n+8];
+			copy(r.data, r.data+n, newdt);
 			delete r.data;
 			r.data = newdt;
 		}