From c8216caa6c1364a8b64294dad7f3036657432130 Mon Sep 17 00:00:00 2001
From: rich_sposato <rich_sposato@7ec92016-0320-0410-acc4-a06ded1c099a>
Date: Tue, 4 Oct 2011 20:48:36 +0000
Subject: [PATCH] Fix for bug 2694073. Added calls to reserve so append won't
 resize as often.

git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@1137 7ec92016-0320-0410-acc4-a06ded1c099a
---
 src/SafeFormat.cpp | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/SafeFormat.cpp b/src/SafeFormat.cpp
index ad6ce2c..582ebfd 100644
--- a/src/SafeFormat.cpp
+++ b/src/SafeFormat.cpp
@@ -43,6 +43,11 @@ namespace Loki
 
     void write(std::string& s, const char* from, const char* to) {
         assert(from <= to);
+        const size_t addCount = to - from;
+        if ( s.capacity() <= s.size() + addCount )
+        {
+            s.reserve( 2 * s.size() + addCount );
+        }
         s.append(from, to);
     }
 
@@ -85,10 +90,14 @@ namespace Loki
     }
 
     PrintfState<std::string&, char> SPrintf(std::string& s, const char* format) {
+        const size_t estimate = ::strlen( format ) + 128;
+        s.reserve( estimate );
         return PrintfState<std::string&, char>(s, format);
     }
 
     PrintfState<std::string&, char> SPrintf(std::string& s, const std::string& format) {
+        const size_t estimate = format.size() + 128;
+        s.reserve( estimate );
         return PrintfState<std::string&, char>(s, format.c_str());
     }