1 files changed, 52 insertions, 0 deletions
diff --git a/gnu/lib/libg++/libg++/gcd.cc b/gnu/lib/libg++/libg++/gcd.cc
new file mode 100644
index 000000000000..76ff0ef1b8ee
--- /dev/null
+++ b/gnu/lib/libg++/libg++/gcd.cc
@@ -0,0 +1,52 @@
+/* 
+Copyright (C) 1990 Free Software Foundation
+    written by Doug Lea (dl@rocky.oswego.edu)
+
+This file is part of the GNU C++ Library.  This library is free
+software; you can redistribute it and/or modify it under the terms of
+the GNU Library General Public License as published by the Free
+Software Foundation; either version 2 of the License, 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 Library General Public License for more details.
+You should have received a copy of the GNU Library General Public
+License along with this library; if not, write to the Free Software
+Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifdef __GNUG__
+#pragma implementation
+#endif
+#include <builtin.h>
+
+
+/*
+ common functions on built-in types
+*/
+
+long gcd(long x, long y)        // euclid's algorithm
+{
+  long a = abs(x);
+  long b = abs(y);
+
+  long tmp;
+  
+  if (b > a)
+  {
+    tmp = a; a = b; b = tmp;
+  }
+  for(;;)
+  {
+    if (b == 0)
+      return a;
+    else if (b == 1)
+      return b;
+    else
+    {
+      tmp = b;
+      b = a % b;
+      a = tmp;
+    }
+  }
+}