From 9a4a7de4de1472638826f908d37367dbfcd47cdf Mon Sep 17 00:00:00 2001 From: paolo Date: Tue, 15 Nov 2011 10:49:00 +0000 Subject: [PATCH 1/1] 2011-11-15 Jason Dick PR libstdc++/51133 * include/tr1/poly_hermite.tcc (__poly_hermite_recursion): Fix wrong sign in recursion relation. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181381 138bc75d-0d04-0410-961f-82ee72b054a4 --- libstdc++-v3/ChangeLog | 6 ++++++ libstdc++-v3/include/tr1/poly_hermite.tcc | 4 ++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 5eb3f8d4376..e4a09a5e587 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,9 @@ +2011-11-15 Jason Dick + + PR libstdc++/51133 + * include/tr1/poly_hermite.tcc (__poly_hermite_recursion): Fix + wrong sign in recursion relation. + 2011-11-14 Paolo Carlini * include/c_global/cmath (frexp, modf, remquo): Do not mark constexpr, diff --git a/libstdc++-v3/include/tr1/poly_hermite.tcc b/libstdc++-v3/include/tr1/poly_hermite.tcc index e86b3777c74..95e8079d543 100644 --- a/libstdc++-v3/include/tr1/poly_hermite.tcc +++ b/libstdc++-v3/include/tr1/poly_hermite.tcc @@ -1,6 +1,6 @@ // Special functions -*- C++ -*- -// Copyright (C) 2006, 2007, 2008, 2009, 2010 +// Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 // Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free @@ -84,7 +84,7 @@ namespace tr1 unsigned int __i; for (__H_nm2 = __H_0, __H_nm1 = __H_1, __i = 2; __i <= __n; ++__i) { - __H_n = 2 * (__x * __H_nm1 + (__i - 1) * __H_nm2); + __H_n = 2 * (__x * __H_nm1 - (__i - 1) * __H_nm2); __H_nm2 = __H_nm1; __H_nm1 = __H_n; } -- 2.11.0