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From: "konig121 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/67085] New: priority queue should not copy comparators when calling push_heap and pop_heap
Date: Fri, 31 Jul 2015 19:11:00 -0000 [thread overview]
Message-ID: <bug-67085-4@http.gcc.gnu.org/bugzilla/> (raw)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67085
Bug ID: 67085
Summary: priority queue should not copy comparators when
calling push_heap and pop_heap
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: konig121 at gmail dot com
Target Milestone: ---
Created attachment 36103
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36103&action=edit
Program demonstrating the extra copy operations
The implementation of std::priority_queue's constructor, push, and pop methods
do not force the comparators to be passed by reference, resulting in extra copy
operations. See the attached program for example reproduction steps. The issue
seems to be due to the way that push_heap and pop_heap are called.
next reply other threads:[~2015-07-31 19:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-31 19:11 konig121 at gmail dot com [this message]
2015-07-31 19:16 ` [Bug libstdc++/67085] " konig121 at gmail dot com
2015-08-01 0:45 ` redi at gcc dot gnu.org
2015-08-03 19:53 ` konig121 at gmail dot com
2015-08-04 9:13 ` redi at gcc dot gnu.org
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