From c70bf6b2bf4b01e01ecf86768906ddf631f18629 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Mon, 27 Feb 2017 08:20:14 -0800
Subject: [PATCH] [core] Reserve vector size

---
 platform/default/bidi.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/platform/default/bidi.cpp b/platform/default/bidi.cpp
index 64baddaa5..08a02ee60 100644
--- a/platform/default/bidi.cpp
+++ b/platform/default/bidi.cpp
@@ -74,6 +74,8 @@ std::vector<std::u16string> BiDi::applyLineBreaking(std::set<std::size_t> lineBr
     mergeParagraphLineBreaks(lineBreakPoints);
 
     std::vector<std::u16string> transformedLines;
+    transformedLines.reserve(lineBreakPoints.size());
+
     std::size_t start = 0;
     for (std::size_t lineBreakPoint : lineBreakPoints) {
         transformedLines.push_back(getLine(start, lineBreakPoint));