[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 Tony E Lewis changed: What|Removed |Added CC||TonyELewis at hotmail dot com --- Comment

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 Jonathan Wakely changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #10 from Jonathan Wakely --- Author: redi Date: Sat Dec 6 20:38:07 2014 New Revision: 218454 URL: https://gcc.gnu.org/viewcvs?rev=218454&root=gcc&view=rev Log: PR libstdc++/59603 * include/bits/stl_algo.h (random_shuffle): P

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #9 from Jonathan Wakely --- Author: redi Date: Wed Oct 1 12:34:04 2014 New Revision: 215754 URL: https://gcc.gnu.org/viewcvs?rev=215754&root=gcc&view=rev Log: PR libstdc++/59603 * include/bits/stl_algo.h (random_shuffle): Pr

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #8 from Jonathan Wakely --- Fixed on trunk so far.

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #7 from Jonathan Wakely --- Author: redi Date: Fri Sep 12 13:30:35 2014 New Revision: 215219 URL: https://gcc.gnu.org/viewcvs?rev=215219&root=gcc&view=rev Log: PR libstdc++/59603 * include/bits/stl_algo.h (random_shuffle): Pr

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #6 from Jonathan Wakely --- (In reply to Jörg Richter from comment #2) > Seems like we have hit this bug too. It happens not only in debug mode. We > have a testcase that triggers valgrind errors in non-debug mode while > calling ra

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #5 from Jonathan Wakely --- Even if swapping an object with itself is well-defined it's a waste of time, so we shouldn't do it. There's a discussion happening now with the C++ library working group to resolve whether self-move-assignm

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #4 from Jörg Richter --- Are you sure that this is not a iter_swap problem? I have found nothing in the standard that iter_swap( x, x ) is undefined. I always thought types do not have to be prepared to handle self move assignment.

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #3 from Jonathan Wakely --- This patch avoids the self-move: index 4c6ca8a..6ce2d21 100644 --- a/libstdc++-v3/include/bits/stl_algo.h +++ b/libstdc++-v3/include/bits/stl_algo.h @@ -4430,7 +4430,12 @@ _GLIBCXX_BEGIN_NAMESPACE_ALGO

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 Jonathan Wakely changed: What|Removed |Added Status|UNCONFIRMED |NEW Last reconfirmed|

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 Jörg Richter changed: What|Removed |Added CC||joerg.rich...@pdv-fs.de --- Comment #2 fro

[Bug libstdc++/59603] std::random_shuffle tries to swap element with itself

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59603 --- Comment #1 from Fabian Emmes --- Created attachment 31518 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31518&action=edit program triggering the error