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From: "luca.stoppa at bbh dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/59048] std::string operator== between std::string and const char* creates unecessary temporary object
Date: Fri, 08 Nov 2013 11:34:00 -0000	[thread overview]
Message-ID: <bug-59048-4-O8xqA8YSWQ@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-59048-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59048

--- Comment #3 from Luca Stoppa <luca.stoppa at bbh dot com> ---
Created attachment 31181
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31181&action=edit
testcase

g++ -O3 mapping.cpp

time ./a.out 10000000 f
time ./a.out 10000000 g
time ./a.out 10000000 h
time ./a.out 10000000 i

will execute the 4 different paths in the code.


  parent reply	other threads:[~2013-11-08 11:34 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-08 10:59 [Bug c++/59048] New: " luca.stoppa at bbh dot com
2013-11-08 11:12 ` [Bug libstdc++/59048] " redi at gcc dot gnu.org
2013-11-08 11:18 ` redi at gcc dot gnu.org
2013-11-08 11:34 ` luca.stoppa at bbh dot com [this message]
2013-11-08 11:37 ` paolo.carlini at oracle dot com
2013-11-08 11:41 ` luca.stoppa at bbh dot com
2013-11-08 11:46 ` redi at gcc dot gnu.org
2013-11-08 11:46 ` paolo.carlini at oracle dot com
2013-11-08 11:50 ` paolo.carlini at oracle dot com
2013-11-08 13:48 ` luca.stoppa at bbh dot com
2013-11-08 19:24 ` glisse at gcc dot gnu.org
2015-06-02 22:49 ` [Bug libstdc++/59048] operator== between std::string and const char* slower than strcmp neleai at seznam dot cz
2015-06-03  6:34 ` manu at gcc dot gnu.org
2015-06-03  7:54 ` glisse at gcc dot gnu.org
2021-02-11 20:08 ` hiraditya at msn dot com
2021-02-12 14:48 ` redi at gcc dot gnu.org
2022-06-14 15:15 ` redi at gcc dot gnu.org
2022-06-14 20:19 ` cvs-commit at gcc dot gnu.org
2022-06-14 20:21 ` redi at gcc dot gnu.org

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