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limits (numeric_limits): Fix returns per C++11.

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2012-03-02  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/limits (numeric_limits): Fix returns per C++11.
	* testsuite/18_support/numeric_limits/primary.cc: New.

From-SVN: r184837
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Paolo Carlini 2012-03-02 22:24:45 +00:00 committed by Paolo Carlini
parent acb3748dd1
commit b98fcf6ecd
3 changed files with 38 additions and 9 deletions
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5
libstdc++-v3/ChangeLog
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@ -1,3 +1,8 @@
2012-03-02 Paolo Carlini <paolo.carlini@oracle.com>
* include/std/limits (numeric_limits): Fix returns per C++11.
* testsuite/18_support/numeric_limits/primary.cc: New.
2012-03-02 Benjamin Kosnik <bkoz@redhat.com>
* include/c_global/cstdio: Remove extraneous extern.

18
libstdc++-v3/include/std/limits
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@ -306,47 +306,47 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
/** The minimum finite value, or for floating types with
denormalization, the minimum positive normalized value. */
static _GLIBCXX_CONSTEXPR _Tp
min() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
/** The maximum finite value. */
static _GLIBCXX_CONSTEXPR _Tp
max() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
max() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
#ifdef __GXX_EXPERIMENTAL_CXX0X__
/** A finite value x such that there is no other finite value y
* where y < x. */
static constexpr _Tp
lowest() noexcept { return static_cast<_Tp>(0); }
lowest() noexcept { return _Tp(); }
#endif
/** The @e machine @e epsilon: the difference between 1 and the least
value greater than 1 that is representable. */
static _GLIBCXX_CONSTEXPR _Tp
epsilon() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
epsilon() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
/** The maximum rounding error measurement (see LIA-1). */
static _GLIBCXX_CONSTEXPR _Tp
round_error() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
round_error() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
/** The representation of positive infinity, if @c has_infinity. */
static _GLIBCXX_CONSTEXPR _Tp
infinity() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
infinity() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
/** The representation of a quiet <em>Not a Number</em>,
if @c has_quiet_NaN. */
static _GLIBCXX_CONSTEXPR _Tp
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
quiet_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
/** The representation of a signaling <em>Not a Number</em>, if
@c has_signaling_NaN. */
static _GLIBCXX_CONSTEXPR _Tp
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
signaling_NaN() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
/** The minimum positive denormalized value. For types where
@c has_denorm is false, this is the minimum positive normalized
value. */
static _GLIBCXX_CONSTEXPR _Tp
denorm_min() _GLIBCXX_USE_NOEXCEPT { return static_cast<_Tp>(0); }
denorm_min() _GLIBCXX_USE_NOEXCEPT { return _Tp(); }
};
#ifdef __GXX_EXPERIMENTAL_CXX0X__

24
libstdc++-v3/testsuite/18_support/numeric_limits/primary.cc Normal file
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@ -0,0 +1,24 @@
// { dg-do compile }
// Copyright (C) 2012 Free Software Foundation
//
// 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 <limits>
struct MyBigNum { };
template class std::numeric_limits<MyBigNum>;