lyx_mirror/boost/boost/limits.hpp
Lars Gullik Bjønnes e1644a68eb update boost to pre-1.30.0
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6319 a592a061-630c-0410-9148-cb99ea01b6c8
2003-03-03 15:53:48 +00:00

142 lines
5.5 KiB
C++

// (C) Copyright Boost.org 1999. Permission to copy, use, modify, sell and
// distribute this software is granted provided this copyright notice appears
// in all copies. This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
// use this header as a workaround for missing <limits>
// See http://www.boost.org/libs/utility/limits.html for documentation.
#ifndef BOOST_LIMITS
#define BOOST_LIMITS
#include <boost/config.hpp>
#ifdef BOOST_NO_LIMITS
# include <boost/detail/limits.hpp>
#else
# include <limits>
#endif
#if (defined(BOOST_HAS_LONG_LONG) && defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)) \
|| (defined(BOOST_HAS_MS_INT64) && defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS))
// Add missing specializations for numeric_limits:
#ifdef BOOST_HAS_MS_INT64
# define BOOST_LLT __int64
#else
# define BOOST_LLT long long
#endif
namespace std
{
template<>
class numeric_limits<BOOST_LLT>
{
public:
BOOST_STATIC_CONSTANT(bool, is_specialized = true);
#ifdef BOOST_HAS_MS_INT64
static BOOST_LLT min(){ return 0x8000000000000000i64; }
static BOOST_LLT max(){ return 0x7FFFFFFFFFFFFFFFi64; }
#elif defined(LLONG_MAX)
static BOOST_LLT min(){ return LLONG_MIN; }
static BOOST_LLT max(){ return LLONG_MAX; }
#elif defined(LONGLONG_MAX)
static BOOST_LLT min(){ return LONGLONG_MIN; }
static BOOST_LLT max(){ return LONGLONG_MAX; }
#else
static BOOST_LLT min(){ return 1LL << (sizeof(BOOST_LLT) * CHAR_BIT - 1); }
static BOOST_LLT max(){ return ~min(); }
#endif
BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT -1);
BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT) - 1) * 301L / 1000);
BOOST_STATIC_CONSTANT(bool, is_signed = true);
BOOST_STATIC_CONSTANT(bool, is_integer = true);
BOOST_STATIC_CONSTANT(bool, is_exact = true);
BOOST_STATIC_CONSTANT(int, radix = 2);
static BOOST_LLT epsilon() throw() { return 0; };
static BOOST_LLT round_error() throw() { return 0; };
BOOST_STATIC_CONSTANT(int, min_exponent = 0);
BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
BOOST_STATIC_CONSTANT(int, max_exponent = 0);
BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
BOOST_STATIC_CONSTANT(bool, has_infinity = false);
BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
BOOST_STATIC_CONSTANT(bool, has_denorm = false);
BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
static BOOST_LLT infinity() throw() { return 0; };
static BOOST_LLT quiet_NaN() throw() { return 0; };
static BOOST_LLT signaling_NaN() throw() { return 0; };
static BOOST_LLT denorm_min() throw() { return 0; };
BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
BOOST_STATIC_CONSTANT(bool, is_bounded = false);
BOOST_STATIC_CONSTANT(bool, is_modulo = false);
BOOST_STATIC_CONSTANT(bool, traps = false);
BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);
};
template<>
class numeric_limits<unsigned BOOST_LLT>
{
public:
BOOST_STATIC_CONSTANT(bool, is_specialized = true);
#ifdef BOOST_HAS_MS_INT64
static unsigned BOOST_LLT min(){ return 0ui64; }
static unsigned BOOST_LLT max(){ return 0xFFFFFFFFFFFFFFFFui64; }
#elif defined(ULLONG_MAX) && defined(ULLONG_MIN)
static unsigned BOOST_LLT min(){ return ULLONG_MIN; }
static unsigned BOOST_LLT max(){ return ULLONG_MAX; }
#elif defined(ULONGLONG_MAX) && defined(ULONGLONG_MIN)
static unsigned BOOST_LLT min(){ return ULONGLONG_MIN; }
static unsigned BOOST_LLT max(){ return ULONGLONG_MAX; }
#else
static unsigned BOOST_LLT min(){ return 0uLL; }
static unsigned BOOST_LLT max(){ return ~0uLL; }
#endif
BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT);
BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT)) * 301L / 1000);
BOOST_STATIC_CONSTANT(bool, is_signed = false);
BOOST_STATIC_CONSTANT(bool, is_integer = true);
BOOST_STATIC_CONSTANT(bool, is_exact = true);
BOOST_STATIC_CONSTANT(int, radix = 2);
static unsigned BOOST_LLT epsilon() throw() { return 0; };
static unsigned BOOST_LLT round_error() throw() { return 0; };
BOOST_STATIC_CONSTANT(int, min_exponent = 0);
BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
BOOST_STATIC_CONSTANT(int, max_exponent = 0);
BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
BOOST_STATIC_CONSTANT(bool, has_infinity = false);
BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
BOOST_STATIC_CONSTANT(bool, has_denorm = false);
BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
static unsigned BOOST_LLT infinity() throw() { return 0; };
static unsigned BOOST_LLT quiet_NaN() throw() { return 0; };
static unsigned BOOST_LLT signaling_NaN() throw() { return 0; };
static unsigned BOOST_LLT denorm_min() throw() { return 0; };
BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
BOOST_STATIC_CONSTANT(bool, is_bounded = false);
BOOST_STATIC_CONSTANT(bool, is_modulo = false);
BOOST_STATIC_CONSTANT(bool, traps = false);
BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);
};
}
#endif
#endif