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125 lines
4.8 KiB
C++
125 lines
4.8 KiB
C++
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// (C) Copyright John maddock 1999.
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// (C) David Abrahams 2002. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// use this header as a workaround for missing <limits>
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// See http://www.boost.org/libs/compatibility/index.html for documentation.
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#ifndef BOOST_LIMITS
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#define BOOST_LIMITS
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#include <boost/config.hpp>
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#ifdef BOOST_NO_LIMITS
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# include <boost/detail/limits.hpp>
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#else
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# include <limits>
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#endif
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#include <boost/detail/extended_integer.hpp> // for BOOST_HAS_XINT, etc.
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#if (defined(BOOST_HAS_LONG_LONG) && defined(BOOST_NO_LONG_LONG_NUMERIC_LIMITS)) \
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|| (defined(BOOST_HAS_MS_INT64) && defined(BOOST_NO_MS_INT64_NUMERIC_LIMITS))
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// Add missing specializations for numeric_limits:
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#if !defined(BOOST_HAS_XINT) || !(BOOST_HAS_XINT)
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#error "Shouldn't have gotten here based on preceeding preprocessor statements"
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#endif
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#define BOOST_LLT ::boost::detail::xint_t
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#define BOOST_ULLT ::boost::detail::uxint_t
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#include <climits> // for CHAR_BIT
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namespace std
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{
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template<>
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class numeric_limits< BOOST_LLT >
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{
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public:
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BOOST_STATIC_CONSTANT(bool, is_specialized = true);
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static BOOST_LLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return BOOST_XINT_MIN; }
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static BOOST_LLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return BOOST_XINT_MAX; }
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BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT -1);
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BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT) - 1) * 301L / 1000);
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BOOST_STATIC_CONSTANT(bool, is_signed = true);
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BOOST_STATIC_CONSTANT(bool, is_integer = true);
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BOOST_STATIC_CONSTANT(bool, is_exact = true);
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BOOST_STATIC_CONSTANT(int, radix = 2);
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static BOOST_LLT epsilon() throw() { return 0; };
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static BOOST_LLT round_error() throw() { return 0; };
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BOOST_STATIC_CONSTANT(int, min_exponent = 0);
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BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
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BOOST_STATIC_CONSTANT(int, max_exponent = 0);
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BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
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BOOST_STATIC_CONSTANT(bool, has_infinity = false);
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BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
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BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
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BOOST_STATIC_CONSTANT(bool, has_denorm = false);
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BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
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static BOOST_LLT infinity() throw() { return 0; };
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static BOOST_LLT quiet_NaN() throw() { return 0; };
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static BOOST_LLT signaling_NaN() throw() { return 0; };
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static BOOST_LLT denorm_min() throw() { return 0; };
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BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
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BOOST_STATIC_CONSTANT(bool, is_bounded = true);
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BOOST_STATIC_CONSTANT(bool, is_modulo = true);
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BOOST_STATIC_CONSTANT(bool, traps = false);
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BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
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BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);
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};
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template<>
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class numeric_limits< BOOST_ULLT >
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{
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public:
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BOOST_STATIC_CONSTANT(bool, is_specialized = true);
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static BOOST_ULLT min BOOST_PREVENT_MACRO_SUBSTITUTION (){ return (BOOST_ULLT) 0u; }
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static BOOST_ULLT max BOOST_PREVENT_MACRO_SUBSTITUTION (){ return BOOST_UXINT_MAX; }
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BOOST_STATIC_CONSTANT(int, digits = sizeof(BOOST_LLT) * CHAR_BIT);
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BOOST_STATIC_CONSTANT(int, digits10 = (CHAR_BIT * sizeof (BOOST_LLT)) * 301L / 1000);
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BOOST_STATIC_CONSTANT(bool, is_signed = false);
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BOOST_STATIC_CONSTANT(bool, is_integer = true);
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BOOST_STATIC_CONSTANT(bool, is_exact = true);
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BOOST_STATIC_CONSTANT(int, radix = 2);
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static BOOST_ULLT epsilon() throw() { return 0; };
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static BOOST_ULLT round_error() throw() { return 0; };
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BOOST_STATIC_CONSTANT(int, min_exponent = 0);
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BOOST_STATIC_CONSTANT(int, min_exponent10 = 0);
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BOOST_STATIC_CONSTANT(int, max_exponent = 0);
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BOOST_STATIC_CONSTANT(int, max_exponent10 = 0);
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BOOST_STATIC_CONSTANT(bool, has_infinity = false);
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BOOST_STATIC_CONSTANT(bool, has_quiet_NaN = false);
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BOOST_STATIC_CONSTANT(bool, has_signaling_NaN = false);
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BOOST_STATIC_CONSTANT(bool, has_denorm = false);
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BOOST_STATIC_CONSTANT(bool, has_denorm_loss = false);
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static BOOST_ULLT infinity() throw() { return 0; };
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static BOOST_ULLT quiet_NaN() throw() { return 0; };
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static BOOST_ULLT signaling_NaN() throw() { return 0; };
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static BOOST_ULLT denorm_min() throw() { return 0; };
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BOOST_STATIC_CONSTANT(bool, is_iec559 = false);
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BOOST_STATIC_CONSTANT(bool, is_bounded = true);
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BOOST_STATIC_CONSTANT(bool, is_modulo = true);
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BOOST_STATIC_CONSTANT(bool, traps = false);
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BOOST_STATIC_CONSTANT(bool, tinyness_before = false);
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BOOST_STATIC_CONSTANT(float_round_style, round_style = round_toward_zero);
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};
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}
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#endif
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#endif
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