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gcc/libstdc++-v3/include/std/std_limits.h
Richard Henderson d3d09886b3 std_limits.h (numeric_limits<T>::is_iec559): False if denormals are not supported. 
* include/std/std_limits.h (numeric_limits<T>::is_iec559): False
        if denormals are not supported.

From-SVN: r57595
2002-09-27 15:39:28 -07:00

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// The template and inlines for the -*- C++ -*- numeric_limits classes.
// Copyright (C) 1999, 2000, 2001, 2002 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.
// Note: this is not a conforming implementation.
// Written by Gabriel Dos Reis <gdr@codesourcery.com>
//
// ISO 14882:1998
// 18.2.1
//
/** @file limits
* This is a Standard C++ Library header. You should @c #include this header
* in your programs, rather than any of the "st[dl]_*.h" implementation files.
*/
#ifndef _CPP_NUMERIC_LIMITS
#define _CPP_NUMERIC_LIMITS 1
#pragma GCC system_header
#include <bits/c++config.h>
//
// The numeric_limits<> traits document implementation-defined aspects
// of fundamental arithmetic data types (integers and floating points).
// From Standard C++ point of view, there are 13 such types:
// * integers
// bool (1)
// char, signed char, unsigned char (3)
// short, unsigned short (2)
// int, unsigned (2)
// long, unsigned long (2)
//
// * floating points
// float (1)
// double (1)
// long double (1)
//
// GNU C++ undertstands (where supported by the host C-library)
// * integer
// long long, unsigned long long (2)
//
// which brings us to 15 fundamental arithmetic data types in GNU C++.
//
//
// Since a numeric_limits<> is a bit tricky to get right, we rely on
// an interface composed of macros which should be defined in config/os
// or config/cpu when they differ from the generic (read arbitrary)
// definitions given here.
//
// These values can be overridden in the target configuration file.
// The default values are appropriate for many 32-bit targets.
// GCC only intrinsicly supports modulo integral types. The only remaining
// integral exceptional values is division by zero. Only targets that do not
// signal division by zero in some "hard to ignore" way should use false.
#ifndef __glibcpp_integral_traps
# define __glibcpp_integral_traps true
#endif
// float
//
// Default values. Should be overriden in configuration files if necessary.
#ifndef __glibcpp_float_has_denorm_loss
# define __glibcpp_float_has_denorm_loss false
#endif
#ifndef __glibcpp_float_traps
# define __glibcpp_float_traps false
#endif
#ifndef __glibcpp_float_tinyness_before
# define __glibcpp_float_tinyness_before false
#endif
// double
// Default values. Should be overriden in configuration files if necessary.
#ifndef __glibcpp_double_has_denorm_loss
# define __glibcpp_double_has_denorm_loss false
#endif
#ifndef __glibcpp_double_traps
# define __glibcpp_double_traps false
#endif
#ifndef __glibcpp_double_tinyness_before
# define __glibcpp_double_tinyness_before false
#endif
// long double
// Default values. Should be overriden in configuration files if necessary.
#ifndef __glibcpp_long_double_has_denorm_loss
# define __glibcpp_long_double_has_denorm_loss false
#endif
#ifndef __glibcpp_long_double_traps
# define __glibcpp_long_double_traps false
#endif
#ifndef __glibcpp_long_double_tinyness_before
# define __glibcpp_long_double_tinyness_before false
#endif
// You should not need to define any macros below this point.
#define __glibcpp_signed(T) ((T)(-1) < 0)
#define __glibcpp_min(T) \
(__glibcpp_signed (T) ? (T)1 << __glibcpp_digits (T) : (T)0)
#define __glibcpp_max(T) \
(__glibcpp_signed (T) ? ((T)1 << __glibcpp_digits (T)) - 1 : ~(T)0)
#define __glibcpp_digits(T) \
(sizeof(T) * __CHAR_BIT__ - __glibcpp_signed (T))
// The fraction 643/2136 approximates log10(2) to 7 significant digits.
#define __glibcpp_digits10(T) \
(__glibcpp_digits (T) * 643 / 2136)
namespace std
{
enum float_round_style
{
round_indeterminate = -1,
round_toward_zero = 0,
round_to_nearest = 1,
round_toward_infinity = 2,
round_toward_neg_infinity = 3
};
enum float_denorm_style
{
denorm_indeterminate = -1,
denorm_absent = 0,
denorm_present = 1
};
//
// The primary class traits
//
struct __numeric_limits_base
{
static const bool is_specialized = false;
static const int digits = 0;
static const int digits10 = 0;
static const bool is_signed = false;
static const bool is_integer = false;
static const bool is_exact = false;
static const int radix = 0;
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static const bool is_iec559 = false;
static const bool is_bounded = false;
static const bool is_modulo = false;
static const bool traps = false;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<typename _Tp>
struct numeric_limits : public __numeric_limits_base
{
static _Tp min() throw() { return static_cast<_Tp>(0); }
static _Tp max() throw() { return static_cast<_Tp>(0); }
static _Tp epsilon() throw() { return static_cast<_Tp>(0); }
static _Tp round_error() throw() { return static_cast<_Tp>(0); }
static _Tp infinity() throw() { return static_cast<_Tp>(0); }
static _Tp quiet_NaN() throw() { return static_cast<_Tp>(0); }
static _Tp signaling_NaN() throw() { return static_cast<_Tp>(0); }
static _Tp denorm_min() throw() { return static_cast<_Tp>(0); }
};
// Now there follow 15 explicit specializations. Yes, 15. Make sure
// you get the count right.
template<>
struct numeric_limits<bool>
{
static const bool is_specialized = true;
static bool min() throw()
{ return false; }
static bool max() throw()
{ return true; }
static const int digits = 1;
static const int digits10 = 0;
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static bool epsilon() throw()
{ return false; }
static bool round_error() throw()
{ return false; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static bool infinity() throw()
{ return false; }
static bool quiet_NaN() throw()
{ return false; }
static bool signaling_NaN() throw()
{ return false; }
static bool denorm_min() throw()
{ return false; }
static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = false;
// It is not clear what it means for a boolean type to trap.
// This is a DR on the LWG issue list. Here, I use integer
// promotion semantics.
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<char>
{
static const bool is_specialized = true;
static char min() throw()
{ return __glibcpp_min(char); }
static char max() throw()
{ return __glibcpp_max(char); }
static const int digits = __glibcpp_digits (char);
static const int digits10 = __glibcpp_digits10 (char);
static const bool is_signed = __glibcpp_signed (char);
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static char epsilon() throw()
{ return 0; }
static char round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static char infinity() throw()
{ return char(); }
static char quiet_NaN() throw()
{ return char(); }
static char signaling_NaN() throw()
{ return char(); }
static char denorm_min() throw()
{ return static_cast<char>(0); }
static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<signed char>
{
static const bool is_specialized = true;
static signed char min() throw()
{ return -__SCHAR_MAX__ - 1; }
static signed char max() throw()
{ return __SCHAR_MAX__; }
static const int digits = __glibcpp_digits (signed char);
static const int digits10 = __glibcpp_digits10 (signed char);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static signed char epsilon() throw()
{ return 0; }
static signed char round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static signed char infinity() throw()
{ return static_cast<signed char>(0); }
static signed char quiet_NaN() throw()
{ return static_cast<signed char>(0); }
static signed char signaling_NaN() throw()
{ return static_cast<signed char>(0); }
static signed char denorm_min() throw()
{ return static_cast<signed char>(0); }
static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<unsigned char>
{
static const bool is_specialized = true;
static unsigned char min() throw()
{ return 0; }
static unsigned char max() throw()
{ return __SCHAR_MAX__ * 2U + 1; }
static const int digits = __glibcpp_digits (unsigned char);
static const int digits10 = __glibcpp_digits10 (unsigned char);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static unsigned char epsilon() throw()
{ return 0; }
static unsigned char round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static unsigned char infinity() throw()
{ return static_cast<unsigned char>(0); }
static unsigned char quiet_NaN() throw()
{ return static_cast<unsigned char>(0); }
static unsigned char signaling_NaN() throw()
{ return static_cast<unsigned char>(0); }
static unsigned char denorm_min() throw()
{ return static_cast<unsigned char>(0); }
static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<wchar_t>
{
static const bool is_specialized = true;
static wchar_t min() throw()
{ return __glibcpp_min (wchar_t); }
static wchar_t max() throw()
{ return __glibcpp_max (wchar_t); }
static const int digits = __glibcpp_digits (wchar_t);
static const int digits10 = __glibcpp_digits10 (wchar_t);
static const bool is_signed = __glibcpp_signed (wchar_t);
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static wchar_t epsilon() throw()
{ return 0; }
static wchar_t round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static wchar_t infinity() throw()
{ return wchar_t(); }
static wchar_t quiet_NaN() throw()
{ return wchar_t(); }
static wchar_t signaling_NaN() throw()
{ return wchar_t(); }
static wchar_t denorm_min() throw()
{ return wchar_t(); }
static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<short>
{
static const bool is_specialized = true;
static short min() throw()
{ return -__SHRT_MAX__ - 1; }
static short max() throw()
{ return __SHRT_MAX__; }
static const int digits = __glibcpp_digits (short);
static const int digits10 = __glibcpp_digits10 (short);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static short epsilon() throw()
{ return 0; }
static short round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static short infinity() throw()
{ return short(); }
static short quiet_NaN() throw()
{ return short(); }
static short signaling_NaN() throw()
{ return short(); }
static short denorm_min() throw()
{ return short(); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<unsigned short>
{
static const bool is_specialized = true;
static unsigned short min() throw()
{ return 0; }
static unsigned short max() throw()
{ return __SHRT_MAX__ * 2U + 1; }
static const int digits = __glibcpp_digits (unsigned short);
static const int digits10 = __glibcpp_digits10 (unsigned short);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static unsigned short epsilon() throw()
{ return 0; }
static unsigned short round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static unsigned short infinity() throw()
{ return static_cast<unsigned short>(0); }
static unsigned short quiet_NaN() throw()
{ return static_cast<unsigned short>(0); }
static unsigned short signaling_NaN() throw()
{ return static_cast<unsigned short>(0); }
static unsigned short denorm_min() throw()
{ return static_cast<unsigned short>(0); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<int>
{
static const bool is_specialized = true;
static int min() throw()
{ return -__INT_MAX__ - 1; }
static int max() throw()
{ return __INT_MAX__; }
static const int digits = __glibcpp_digits (int);
static const int digits10 = __glibcpp_digits10 (int);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static int epsilon() throw()
{ return 0; }
static int round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static int infinity() throw()
{ return static_cast<int>(0); }
static int quiet_NaN() throw()
{ return static_cast<int>(0); }
static int signaling_NaN() throw()
{ return static_cast<int>(0); }
static int denorm_min() throw()
{ return static_cast<int>(0); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<unsigned int>
{
static const bool is_specialized = true;
static unsigned int min() throw()
{ return 0; }
static unsigned int max() throw()
{ return __INT_MAX__ * 2U + 1; }
static const int digits = __glibcpp_digits (unsigned int);
static const int digits10 = __glibcpp_digits10 (unsigned int);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static unsigned int epsilon() throw()
{ return 0; }
static unsigned int round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static unsigned int infinity() throw()
{ return static_cast<unsigned int>(0); }
static unsigned int quiet_NaN() throw()
{ return static_cast<unsigned int>(0); }
static unsigned int signaling_NaN() throw()
{ return static_cast<unsigned int>(0); }
static unsigned int denorm_min() throw()
{ return static_cast<unsigned int>(0); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<long>
{
static const bool is_specialized = true;
static long min() throw()
{ return -__LONG_MAX__ - 1; }
static long max() throw()
{ return __LONG_MAX__; }
static const int digits = __glibcpp_digits (long);
static const int digits10 = __glibcpp_digits10 (long);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static long epsilon() throw()
{ return 0; }
static long round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static long infinity() throw()
{ return static_cast<long>(0); }
static long quiet_NaN() throw()
{ return static_cast<long>(0); }
static long signaling_NaN() throw()
{ return static_cast<long>(0); }
static long denorm_min() throw()
{ return static_cast<long>(0); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<unsigned long>
{
static const bool is_specialized = true;
static unsigned long min() throw()
{ return 0; }
static unsigned long max() throw()
{ return __LONG_MAX__ * 2UL + 1; }
static const int digits = __glibcpp_digits (unsigned long);
static const int digits10 = __glibcpp_digits10 (unsigned long);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static unsigned long epsilon() throw()
{ return 0; }
static unsigned long round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static unsigned long infinity() throw()
{ return static_cast<unsigned long>(0); }
static unsigned long quiet_NaN() throw()
{ return static_cast<unsigned long>(0); }
static unsigned long signaling_NaN() throw()
{ return static_cast<unsigned long>(0); }
static unsigned long denorm_min() throw()
{ return static_cast<unsigned long>(0); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<long long>
{
static const bool is_specialized = true;
static long long min() throw()
{ return -__LONG_LONG_MAX__ - 1; }
static long long max() throw()
{ return __LONG_LONG_MAX__; }
static const int digits = __glibcpp_digits (long long);
static const int digits10 = __glibcpp_digits10 (long long);
static const bool is_signed = true;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static long long epsilon() throw()
{ return 0; }
static long long round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static long long infinity() throw()
{ return static_cast<long long>(0); }
static long long quiet_NaN() throw()
{ return static_cast<long long>(0); }
static long long signaling_NaN() throw()
{ return static_cast<long long>(0); }
static long long denorm_min() throw()
{ return static_cast<long long>(0); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<unsigned long long>
{
static const bool is_specialized = true;
static unsigned long long min() throw()
{ return 0; }
static unsigned long long max() throw()
{ return __LONG_LONG_MAX__ * 2ULL + 1; }
static const int digits = __glibcpp_digits (unsigned long long);
static const int digits10 = __glibcpp_digits10 (unsigned long long);
static const bool is_signed = false;
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
static unsigned long long epsilon() throw()
{ return 0; }
static unsigned long long round_error() throw()
{ return 0; }
static const int min_exponent = 0;
static const int min_exponent10 = 0;
static const int max_exponent = 0;
static const int max_exponent10 = 0;
static const bool has_infinity = false;
static const bool has_quiet_NaN = false;
static const bool has_signaling_NaN = false;
static const float_denorm_style has_denorm = denorm_absent;
static const bool has_denorm_loss = false;
static unsigned long long infinity() throw()
{ return static_cast<unsigned long long>(0); }
static unsigned long long quiet_NaN() throw()
{ return static_cast<unsigned long long>(0); }
static unsigned long long signaling_NaN() throw()
{ return static_cast<unsigned long long>(0); }
static unsigned long long denorm_min() throw()
{ return static_cast<unsigned long long>(0); }
static const bool is_iec559 = true;
static const bool is_bounded = true;
static const bool is_modulo = true;
static const bool traps = __glibcpp_integral_traps;
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template<>
struct numeric_limits<float>
{
static const bool is_specialized = true;
static float min() throw()
{ return __FLT_MIN__; }
static float max() throw()
{ return __FLT_MAX__; }
static const int digits = __FLT_MANT_DIG__;
static const int digits10 = __FLT_DIG__;
static const bool is_signed = true;
static const bool is_integer = false;
static const bool is_exact = false;
static const int radix = __FLT_RADIX__;
static float epsilon() throw()
{ return __FLT_EPSILON__; }
static float round_error() throw()
{ return 0.5F; }
static const int min_exponent = __FLT_MIN_EXP__;
static const int min_exponent10 = __FLT_MIN_10_EXP__;
static const int max_exponent = __FLT_MAX_EXP__;
static const int max_exponent10 = __FLT_MAX_10_EXP__;
static const bool has_infinity
= __builtin_huge_valf () / 2 == __builtin_huge_valf ();
static const bool has_quiet_NaN
= __builtin_nanf ("") != __builtin_nanf ("");
static const bool has_signaling_NaN = has_quiet_NaN;
static const float_denorm_style has_denorm
= __FLT_DENORM_MIN__ ? denorm_present : denorm_absent;
static const bool has_denorm_loss = __glibcpp_float_has_denorm_loss;
static float infinity() throw()
{ return __builtin_huge_valf (); }
static float quiet_NaN() throw()
{ return __builtin_nanf (""); }
static float signaling_NaN() throw()
{ return __builtin_nansf (""); }
static float denorm_min() throw()
{ return __FLT_DENORM_MIN__; }
static const bool is_iec559
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;
static const bool is_bounded = true;
static const bool is_modulo = false;
static const bool traps = __glibcpp_float_traps;
static const bool tinyness_before = __glibcpp_float_tinyness_before;
static const float_round_style round_style = round_to_nearest;
};
#undef __glibcpp_float_has_denorm_loss
#undef __glibcpp_float_traps
#undef __glibcpp_float_tinyness_before
template<>
struct numeric_limits<double>
{
static const bool is_specialized = true;
static double min() throw()
{ return __DBL_MIN__; }
static double max() throw()
{ return __DBL_MAX__; }
static const int digits = __DBL_MANT_DIG__;
static const int digits10 = __DBL_DIG__;
static const bool is_signed = true;
static const bool is_integer = false;
static const bool is_exact = false;
static const int radix = __FLT_RADIX__;
static double epsilon() throw()
{ return __DBL_EPSILON__; }
static double round_error() throw()
{ return 0.5; }
static const int min_exponent = __DBL_MIN_EXP__;
static const int min_exponent10 = __DBL_MIN_10_EXP__;
static const int max_exponent = __DBL_MAX_EXP__;
static const int max_exponent10 = __DBL_MAX_10_EXP__;
static const bool has_infinity
= __builtin_huge_val () / 2 == __builtin_huge_val ();
static const bool has_quiet_NaN
= __builtin_nan ("") != __builtin_nan ("");
static const bool has_signaling_NaN = has_quiet_NaN;
static const float_denorm_style has_denorm
= __DBL_DENORM_MIN__ ? denorm_present : denorm_absent;
static const bool has_denorm_loss = __glibcpp_double_has_denorm_loss;
static double infinity() throw()
{ return __builtin_huge_val(); }
static double quiet_NaN() throw()
{ return __builtin_nan (""); }
static double signaling_NaN() throw()
{ return __builtin_nans (""); }
static double denorm_min() throw()
{ return __DBL_DENORM_MIN__; }
static const bool is_iec559
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;
static const bool is_bounded = true;
static const bool is_modulo = false;
static const bool traps = __glibcpp_double_traps;
static const bool tinyness_before = __glibcpp_double_tinyness_before;
static const float_round_style round_style = round_to_nearest;
};
#undef __glibcpp_double_has_denorm_loss
#undef __glibcpp_double_traps
#undef __glibcpp_double_tinyness_before
template<>
struct numeric_limits<long double>
{
static const bool is_specialized = true;
static long double min() throw()
{ return __LDBL_MIN__; }
static long double max() throw()
{ return __LDBL_MAX__; }
static const int digits = __LDBL_MANT_DIG__;
static const int digits10 = __LDBL_DIG__;
static const bool is_signed = true;
static const bool is_integer = false;
static const bool is_exact = false;
static const int radix = __FLT_RADIX__;
static long double epsilon() throw()
{ return __LDBL_EPSILON__; }
static long double round_error() throw()
{ return 0.5L; }
static const int min_exponent = __LDBL_MIN_EXP__;
static const int min_exponent10 = __LDBL_MIN_10_EXP__;
static const int max_exponent = __LDBL_MAX_EXP__;
static const int max_exponent10 = __LDBL_MAX_10_EXP__;
static const bool has_infinity
= __builtin_huge_vall () / 2 == __builtin_huge_vall ();
static const bool has_quiet_NaN
= __builtin_nanl ("") != __builtin_nanl ("");
static const bool has_signaling_NaN = has_quiet_NaN;
static const float_denorm_style has_denorm
= __LDBL_DENORM_MIN__ ? denorm_present : denorm_absent;
static const bool has_denorm_loss
= __glibcpp_long_double_has_denorm_loss;
static long double infinity() throw()
{ return __builtin_huge_vall (); }
static long double quiet_NaN() throw()
{ return __builtin_nanl (""); }
static long double signaling_NaN() throw()
{ return __builtin_nansl (""); }
static long double denorm_min() throw()
{ return __LDBL_DENORM_MIN__; }
static const bool is_iec559
= has_infinity && has_quiet_NaN && has_denorm == denorm_present;
static const bool is_bounded = true;
static const bool is_modulo = false;
static const bool traps = __glibcpp_long_double_traps;
static const bool tinyness_before = __glibcpp_long_double_tinyness_before;
static const float_round_style round_style = round_to_nearest;
};
#undef __glibcpp_long_double_has_denorm_loss
#undef __glibcpp_long_double_traps
#undef __glibcpp_long_double_tinyness_before
} // namespace std
#undef __glibcpp_signed
#undef __glibcpp_min
#undef __glibcpp_max
#undef __glibcpp_digits
#undef __glibcpp_digits10
#endif // _CPP_NUMERIC_LIMITS
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