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|
// -*- C++ -*-
//===---------------------------- limits ----------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef _LIBCPP_LIMITS
#define _LIBCPP_LIMITS
/*
limits synopsis
namespace std
{
template<class T>
class numeric_limits
{
public:
static const bool is_specialized = false;
static T min() throw();
static T max() throw();
static T lowest() throw();
static const int digits = 0;
static const int digits10 = 0;
static const int max_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 T epsilon() throw();
static T round_error() throw();
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 T infinity() throw();
static T quiet_NaN() throw();
static T signaling_NaN() throw();
static T denorm_min() throw();
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;
};
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
};
template<> class numeric_limits<cv bool>;
template<> class numeric_limits<cv char>;
template<> class numeric_limits<cv signed char>;
template<> class numeric_limits<cv unsigned char>;
template<> class numeric_limits<cv wchar_t>;
template<> class numeric_limits<cv char16_t>;
template<> class numeric_limits<cv char32_t>;
template<> class numeric_limits<cv short>;
template<> class numeric_limits<cv int>;
template<> class numeric_limits<cv long>;
template<> class numeric_limits<cv long long>;
template<> class numeric_limits<cv unsigned short>;
template<> class numeric_limits<cv unsigned int>;
template<> class numeric_limits<cv unsigned long>;
template<> class numeric_limits<cv unsigned long long>;
template<> class numeric_limits<cv float>;
template<> class numeric_limits<cv double>;
template<> class numeric_limits<cv long double>;
} // std
*/
#pragma GCC system_header
#include <__config>
#include <type_traits>
_LIBCPP_BEGIN_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
};
template <class _Tp, bool = is_arithmetic<_Tp>::value>
class __libcpp_numeric_limits
{
protected:
typedef _Tp type;
static const bool is_specialized = false;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return type();}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return type();}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return type();}
static const int digits = 0;
static const int digits10 = 0;
static const int max_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;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return type();}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return type();}
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;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return type();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return type();}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return type();}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return type();}
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 <class _Tp, int digits, bool is_signed>
struct __libcpp_compute_min
{
static const _Tp value = _Tp(_Tp(1) << digits);
};
template <class _Tp, int digits>
struct __libcpp_compute_min<_Tp, digits, false>
{
static const _Tp value = _Tp(0);
};
template <class _Tp>
class __libcpp_numeric_limits<_Tp, true>
{
protected:
typedef _Tp type;
static const bool is_specialized = true;
static const bool is_signed = type(-1) < type(0);
static const int digits = static_cast<int>(sizeof(type) * __CHAR_BIT__ - is_signed);
static const int digits10 = digits * 3 / 10;
static const int max_digits10 = 0;
static const type __min = __libcpp_compute_min<type, digits, is_signed>::value;
static const type __max = is_signed ? type(type(~0) ^ __min) : type(~0);
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __min;}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __max;}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return min();}
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return type(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;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return type(0);}
static const bool is_iec559 = false;
static const bool is_bounded = true;
static const bool is_modulo = true;
#if __i386__ || __x86_64__
static const bool traps = true;
#else
static const bool traps = false;
#endif
static const bool tinyness_before = false;
static const float_round_style round_style = round_toward_zero;
};
template <>
class __libcpp_numeric_limits<bool, true>
{
protected:
typedef bool type;
static const bool is_specialized = true;
static const bool is_signed = false;
static const int digits = 1;
static const int digits10 = 0;
static const int max_digits10 = 0;
static const type __min = false;
static const type __max = true;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __min;}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __max;}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return min();}
static const bool is_integer = true;
static const bool is_exact = true;
static const int radix = 2;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return type(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;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return type(0);}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return type(0);}
static const bool is_iec559 = false;
static const bool is_bounded = true;
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 <>
class __libcpp_numeric_limits<float, true>
{
protected:
typedef float type;
static const bool is_specialized = true;
static const bool is_signed = true;
static const int digits = __FLT_MANT_DIG__;
static const int digits10 = __FLT_DIG__;
static const int max_digits10 = 2+(digits * 30103)/100000;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __FLT_MIN__;}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __FLT_MAX__;}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return -max();}
static const bool is_integer = false;
static const bool is_exact = false;
static const int radix = __FLT_RADIX__;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return __FLT_EPSILON__;}
_LIBCPP_INLINE_VISIBILITY static type 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 = true;
static const bool has_quiet_NaN = true;
static const bool has_signaling_NaN = true;
static const float_denorm_style has_denorm = denorm_present;
static const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return __builtin_huge_valf();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return __builtin_nanf("");}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return __builtin_nansf("");}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return __FLT_DENORM_MIN__;}
static const bool is_iec559 = true;
static const bool is_bounded = true;
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_to_nearest;
};
template <>
class __libcpp_numeric_limits<double, true>
{
protected:
typedef double type;
static const bool is_specialized = true;
static const bool is_signed = true;
static const int digits = __DBL_MANT_DIG__;
static const int digits10 = __DBL_DIG__;
static const int max_digits10 = 2+(digits * 30103)/100000;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __DBL_MIN__;}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __DBL_MAX__;}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return -max();}
static const bool is_integer = false;
static const bool is_exact = false;
static const int radix = __FLT_RADIX__;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return __DBL_EPSILON__;}
_LIBCPP_INLINE_VISIBILITY static type 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 = true;
static const bool has_quiet_NaN = true;
static const bool has_signaling_NaN = true;
static const float_denorm_style has_denorm = denorm_present;
static const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return __builtin_huge_val();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return __builtin_nan("");}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return __builtin_nans("");}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return __DBL_DENORM_MIN__;}
static const bool is_iec559 = true;
static const bool is_bounded = true;
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_to_nearest;
};
template <>
class __libcpp_numeric_limits<long double, true>
{
protected:
typedef long double type;
static const bool is_specialized = true;
static const bool is_signed = true;
static const int digits = __LDBL_MANT_DIG__;
static const int digits10 = __LDBL_DIG__;
static const int max_digits10 = 2+(digits * 30103)/100000;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __LDBL_MIN__;}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __LDBL_MAX__;}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return -max();}
static const bool is_integer = false;
static const bool is_exact = false;
static const int radix = __FLT_RADIX__;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return __LDBL_EPSILON__;}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return 0.5;}
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 = true;
static const bool has_quiet_NaN = true;
static const bool has_signaling_NaN = true;
static const float_denorm_style has_denorm = denorm_present;
static const bool has_denorm_loss = false;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return __builtin_huge_vall();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return __builtin_nanl("");}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return __builtin_nansl("");}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return __LDBL_DENORM_MIN__;}
#if (defined(__ppc__) || defined(__ppc64__))
static const bool is_iec559 = false;
#else
static const bool is_iec559 = true;
#endif
static const bool is_bounded = true;
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_to_nearest;
};
template <class _Tp>
class numeric_limits
: private __libcpp_numeric_limits<typename remove_cv<_Tp>::type>
{
typedef __libcpp_numeric_limits<typename remove_cv<_Tp>::type> __base;
typedef typename __base::type type;
public:
static const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return __base::lowest();}
static const int digits = __base::digits;
static const int digits10 = __base::digits10;
static const int max_digits10 = __base::max_digits10;
static const bool is_signed = __base::is_signed;
static const bool is_integer = __base::is_integer;
static const bool is_exact = __base::is_exact;
static const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return __base::round_error();}
static const int min_exponent = __base::min_exponent;
static const int min_exponent10 = __base::min_exponent10;
static const int max_exponent = __base::max_exponent;
static const int max_exponent10 = __base::max_exponent10;
static const bool has_infinity = __base::has_infinity;
static const bool has_quiet_NaN = __base::has_quiet_NaN;
static const bool has_signaling_NaN = __base::has_signaling_NaN;
static const float_denorm_style has_denorm = __base::has_denorm;
static const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return __base::denorm_min();}
static const bool is_iec559 = __base::is_iec559;
static const bool is_bounded = __base::is_bounded;
static const bool is_modulo = __base::is_modulo;
static const bool traps = __base::traps;
static const bool tinyness_before = __base::tinyness_before;
static const float_round_style round_style = __base::round_style;
};
template <class _Tp>
class numeric_limits<const _Tp>
: private numeric_limits<_Tp>
{
typedef numeric_limits<_Tp> __base;
typedef _Tp type;
public:
static const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return __base::lowest();}
static const int digits = __base::digits;
static const int digits10 = __base::digits10;
static const int max_digits10 = __base::max_digits10;
static const bool is_signed = __base::is_signed;
static const bool is_integer = __base::is_integer;
static const bool is_exact = __base::is_exact;
static const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return __base::round_error();}
static const int min_exponent = __base::min_exponent;
static const int min_exponent10 = __base::min_exponent10;
static const int max_exponent = __base::max_exponent;
static const int max_exponent10 = __base::max_exponent10;
static const bool has_infinity = __base::has_infinity;
static const bool has_quiet_NaN = __base::has_quiet_NaN;
static const bool has_signaling_NaN = __base::has_signaling_NaN;
static const float_denorm_style has_denorm = __base::has_denorm;
static const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return __base::denorm_min();}
static const bool is_iec559 = __base::is_iec559;
static const bool is_bounded = __base::is_bounded;
static const bool is_modulo = __base::is_modulo;
static const bool traps = __base::traps;
static const bool tinyness_before = __base::tinyness_before;
static const float_round_style round_style = __base::round_style;
};
template <class _Tp>
class numeric_limits<volatile _Tp>
: private numeric_limits<_Tp>
{
typedef numeric_limits<_Tp> __base;
typedef _Tp type;
public:
static const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return __base::lowest();}
static const int digits = __base::digits;
static const int digits10 = __base::digits10;
static const int max_digits10 = __base::max_digits10;
static const bool is_signed = __base::is_signed;
static const bool is_integer = __base::is_integer;
static const bool is_exact = __base::is_exact;
static const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return __base::round_error();}
static const int min_exponent = __base::min_exponent;
static const int min_exponent10 = __base::min_exponent10;
static const int max_exponent = __base::max_exponent;
static const int max_exponent10 = __base::max_exponent10;
static const bool has_infinity = __base::has_infinity;
static const bool has_quiet_NaN = __base::has_quiet_NaN;
static const bool has_signaling_NaN = __base::has_signaling_NaN;
static const float_denorm_style has_denorm = __base::has_denorm;
static const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return __base::denorm_min();}
static const bool is_iec559 = __base::is_iec559;
static const bool is_bounded = __base::is_bounded;
static const bool is_modulo = __base::is_modulo;
static const bool traps = __base::traps;
static const bool tinyness_before = __base::tinyness_before;
static const float_round_style round_style = __base::round_style;
};
template <class _Tp>
class numeric_limits<const volatile _Tp>
: private numeric_limits<_Tp>
{
typedef numeric_limits<_Tp> __base;
typedef _Tp type;
public:
static const bool is_specialized = __base::is_specialized;
_LIBCPP_INLINE_VISIBILITY static type min() throw() {return __base::min();}
_LIBCPP_INLINE_VISIBILITY static type max() throw() {return __base::max();}
_LIBCPP_INLINE_VISIBILITY static type lowest() throw() {return __base::lowest();}
static const int digits = __base::digits;
static const int digits10 = __base::digits10;
static const int max_digits10 = __base::max_digits10;
static const bool is_signed = __base::is_signed;
static const bool is_integer = __base::is_integer;
static const bool is_exact = __base::is_exact;
static const int radix = __base::radix;
_LIBCPP_INLINE_VISIBILITY static type epsilon() throw() {return __base::epsilon();}
_LIBCPP_INLINE_VISIBILITY static type round_error() throw() {return __base::round_error();}
static const int min_exponent = __base::min_exponent;
static const int min_exponent10 = __base::min_exponent10;
static const int max_exponent = __base::max_exponent;
static const int max_exponent10 = __base::max_exponent10;
static const bool has_infinity = __base::has_infinity;
static const bool has_quiet_NaN = __base::has_quiet_NaN;
static const bool has_signaling_NaN = __base::has_signaling_NaN;
static const float_denorm_style has_denorm = __base::has_denorm;
static const bool has_denorm_loss = __base::has_denorm_loss;
_LIBCPP_INLINE_VISIBILITY static type infinity() throw() {return __base::infinity();}
_LIBCPP_INLINE_VISIBILITY static type quiet_NaN() throw() {return __base::quiet_NaN();}
_LIBCPP_INLINE_VISIBILITY static type signaling_NaN() throw() {return __base::signaling_NaN();}
_LIBCPP_INLINE_VISIBILITY static type denorm_min() throw() {return __base::denorm_min();}
static const bool is_iec559 = __base::is_iec559;
static const bool is_bounded = __base::is_bounded;
static const bool is_modulo = __base::is_modulo;
static const bool traps = __base::traps;
static const bool tinyness_before = __base::tinyness_before;
static const float_round_style round_style = __base::round_style;
};
_LIBCPP_END_NAMESPACE_STD
#endif // _LIBCPP_LIMITS
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