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+/* Compute hypothenuse. */
+
+/* Copyright (C) 1997-1999 Free Software Foundation, Inc.
+
+ This file is part of the GNU ISO C++ Library. This library is free
+ software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the
+ Free Software Foundation; either version 2, or (at your option)
+ any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this library; see the file COPYING. If not, write to the Free
+ Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+ USA.
+
+ As a special exception, you may use this file as part of a free software
+ library without restriction. Specifically, if other files instantiate
+ templates or use macros or inline functions from this file, or you compile
+ this file and link it with other files to produce an executable, this
+ file does not by itself cause the resulting executable to be covered by
+ the GNU General Public License. This exception does not however
+ invalidate any other reasons why the executable file might be covered by
+ the GNU General Public License. */
+
+/* If the platform is so pathetic that is has no hypot function it does
+ not deserve it better than getting this version. */
+extern double sqrt (double);
+
+double
+hypot (double x, double y)
+{
+ return sqrt (x * x + y * y);
+}