mesos git commit: Enhanced the performance of `startsWith` and `endsWith`.

[mp...@apache.org]

Repository: mesos
Updated Branches:
  refs/heads/master aecafbe0c -> 5e42b96c9


Enhanced the performance of `startsWith` and `endsWith`.

Review: https://reviews.apache.org/r/49246/


Project: http://git-wip-us.apache.org/repos/asf/mesos/repo
Commit: http://git-wip-us.apache.org/repos/asf/mesos/commit/5e42b96c
Tree: http://git-wip-us.apache.org/repos/asf/mesos/tree/5e42b96c
Diff: http://git-wip-us.apache.org/repos/asf/mesos/diff/5e42b96c

Branch: refs/heads/master
Commit: 5e42b96c99d253556ce97e1d98703f4ba6c482d7
Parents: aecafbe
Author: Klaus Ma <kl...@gmail.com>
Authored: Mon Jul 4 17:23:25 2016 +0200
Committer: Michael Park <mp...@apache.org>
Committed: Mon Jul 4 20:33:19 2016 +0200

----------------------------------------------------------------------
 3rdparty/stout/include/stout/strings.hpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/mesos/blob/5e42b96c/3rdparty/stout/include/stout/strings.hpp
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diff --git a/3rdparty/stout/include/stout/strings.hpp b/3rdparty/stout/include/stout/strings.hpp
index 1de77d0..7f7f1cf 100644
--- a/3rdparty/stout/include/stout/strings.hpp
+++ b/3rdparty/stout/include/stout/strings.hpp
@@ -367,7 +367,8 @@ inline bool checkBracketsMatching(
 
 inline bool startsWith(const std::string& s, const std::string& prefix)
 {
-  return s.find(prefix) == 0;
+  return s.size() >= prefix.size() &&
+         std::equal(prefix.begin(), prefix.end(), s.begin());
 }
 
 
@@ -379,7 +380,8 @@ inline bool startsWith(const std::string& s, char c)
 
 inline bool endsWith(const std::string& s, const std::string& suffix)
 {
-  return s.rfind(suffix) == s.length() - suffix.length();
+  return s.size() >= suffix.size() &&
+         std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
 }