From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 16419 invoked by alias); 27 Jan 2012 11:32:47 -0000 Received: (qmail 16410 invoked by uid 22791); 27 Jan 2012 11:32:47 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 27 Jan 2012 11:32:34 +0000 From: "paolo.carlini at oracle dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/51795] linear_congruential_engine doesn't work correctly Date: Fri, 27 Jan 2012 11:46:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: paolo.carlini at oracle dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: paolo.carlini at oracle dot com X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2012-01/txt/msg03124.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51795 --- Comment #4 from Paolo Carlini 2012-01-27 11:32:10 UTC --- The problem is that isn't true that __r < __q, thus one of the preconditions for the algorithm (as explained in eg, Numerical Recipes) is violated.