Hi,
tested x86_64-linux, committed mainline and 4_7-branch.
Thanks,
Paolo.
///////////////////////
2013-01-24 Paolo Carlini <paolo.carl...@oracle.com>
PR libstdc++/56085
* include/std/complex (pow(const complex<>&, int)): Avoid __n
signed overflow.
Index: include/std/complex
===================================================================
--- include/std/complex (revision 195420)
+++ include/std/complex (working copy)
@@ -1,8 +1,6 @@
// The template and inlines for the -*- C++ -*- complex number classes.
-// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-// 2006, 2007, 2008, 2009, 2010, 2011
-// Free Software Foundation, Inc.
+// Copyright (C) 1997-2013 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
@@ -978,7 +976,7 @@
pow(const complex<_Tp>& __z, int __n)
{
return __n < 0
- ? complex<_Tp>(1) / std::__complex_pow_unsigned(__z, -__n)
+ ? complex<_Tp>(1) / std::__complex_pow_unsigned(__z, -(unsigned)__n)
: std::__complex_pow_unsigned(__z, __n);
}
#endif
