re PR libstdc++/56282 (std::basic_ios<char> broken with -std=c++11 (undefined reference))

2013-02-11  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/56282
	Revert:
	2013-02-06  Edward Smith-Rowland  <3dw4rd@verizon.net>

	PR libstdc++/56193
	* include/bits/basic_ios.h: Replace operator void*() const
	with explicit operator bool() const in C++11 and greater.
	* testsuite/27_io/basic_ios/pr56193.cc: New file.

From-SVN: r195939

3 files changed, 23 insertions, 48 deletions

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 32b391e..1768b9b 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,14 @@
+2013-02-11  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR libstdc++/56282
+	Revert:
+	2013-02-06  Edward Smith-Rowland  <3dw4rd@verizon.net>
+
+	PR libstdc++/56193
+	* include/bits/basic_ios.h: Replace operator void*() const
+	with explicit operator bool() const in C++11 and greater.
+	* testsuite/27_io/basic_ios/pr56193.cc: New file.
+
 2013-02-10  François Dumont  <fdumont@gcc.gnu.org>
 	    Jonathan Wakely  <jwakely.gcc@gmail.com>
 
@@ -30,20 +41,20 @@
 	PR libstdc++/56216
 	* include/tr1/special_function_util.h: Remove spurious const
 	from numeric arguments.
-	* include/tr1/riemann_zeta.tcc: Ditto.
-	* include/tr1/exp_integral.tcc: Ditto.
-	* include/tr1/bessel_function.tcc: Ditto.
-	* include/tr1/hypergeometric.tcc: Ditto.
-	* include/tr1/modified_bessel_func.tcc: Ditto.
-	* include/tr1/poly_laguerre.tcc: Ditto.
-	* include/tr1/gamma.tcc: Ditto.
-	* include/tr1/legendre_function.tcc: Ditto.
-	* include/tr1/poly_hermite.tcc: Ditto.
-	* include/tr1/ell_integral.tcc: Ditto.
+	* include/tr1/riemann_zeta.tcc: Likewise.
+	* include/tr1/exp_integral.tcc: Likewise.
+	* include/tr1/bessel_function.tcc: Likewise.
+	* include/tr1/hypergeometric.tcc: Likewise.
+	* include/tr1/modified_bessel_func.tcc: Likewise.
+	* include/tr1/poly_laguerre.tcc: Likewise.
+	* include/tr1/gamma.tcc: Likewise.
+	* include/tr1/legendre_function.tcc: Likewise.
+	* include/tr1/poly_hermite.tcc: Likewise.
+	* include/tr1/ell_integral.tcc: Likewise.
 	* include/tr1/bessel_function.tcc (__cyl_bessel_ij_series):
 	If argument is zero return function value.
-	* testsuite/tr1/5_numerical_facilities/special_functions/08_cyl_bessel_i/pr56216.cc:
-	New file.
+	* testsuite/tr1/5_numerical_facilities/special_functions/
+	08_cyl_bessel_i/pr56216.cc: New.
 
 2013-02-07  Paolo Carlini  <paolo.carlini@oracle.com>
 
diff --git a/libstdc++-v3/include/bits/basic_ios.h b/libstdc++-v3/include/bits/basic_ios.h
index bda40f0..b78b464 100644
--- a/libstdc++-v3/include/bits/basic_ios.h
+++ b/libstdc++-v3/include/bits/basic_ios.h
@@ -112,13 +112,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
        *  This allows you to write constructs such as
        *  <code>if (!a_stream) ...</code> and <code>while (a_stream) ...</code>
       */
-#if __cplusplus >= 201103L
-      explicit operator bool() const
-      { return !this->fail(); }
-#else
       operator void*() const
       { return this->fail() ? 0 : const_cast<basic_ios*>(this); }
-#endif
 
       bool
       operator!() const
diff --git a/libstdc++-v3/testsuite/27_io/basic_ios/pr56193.cc b/libstdc++-v3/testsuite/27_io/basic_ios/pr56193.cc
deleted file mode 100644
index 79793e2..0000000
--- a/libstdc++-v3/testsuite/27_io/basic_ios/pr56193.cc
+++ /dev/null
@@ -1,31 +0,0 @@
-// { dg-do compile }
-// { dg-options "-std=gnu++11" }
-
-// 2013-02-06  Edward Smith-Rowland <3dw4rd@verizon.net>
-//
-// Copyright (C) 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
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, 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 COPYING3.  If not see
-// <http://www.gnu.org/licenses/>.
-
-#include <iostream>
-
-// PR libstdc++/56193
-void
-test01()
-{
-  std::cout << std::cout; // { dg-error "cannot bind" }
-}
-// { dg-error "initializing argument" "" { target *-*-* } 602 }