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boost-1.42
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@ -1,177 +0,0 @@
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// Boost detail/extended_integer.hpp header file ----------------------------//
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// (C) Copyright Daryle Walker 2008. Distributed under the Boost Software
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// License, Version 1.0. (See the accompanying file LICENSE_1_0.txt or a copy
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// at <http://www.boost.org/LICENSE_1_0.txt>.)
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// Encapsulates the double-long and __int64 type families as a single family,
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// as they are mutually exclusive.
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/** \file
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\brief Common definition of extended integer types.
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Instead of other Boost headers making separate \#defines for the double-long
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and __int64 type families, since they're mutually exclusive, make a single
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set of types and macros for the family that exists (if either).
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*/
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#ifndef BOOST_DETAIL_EXTENDED_INTEGER_HPP
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#define BOOST_DETAIL_EXTENDED_INTEGER_HPP
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#include <boost/config.hpp> // for BOOST_HAS_LONG_LONG and BOOST_HAS_MS_INT64
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#include <climits> // for CHAR_BIT, etc.
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namespace boost
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{
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namespace detail
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{
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// Extended integer type macro and alias definitions -----------------------//
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// (Unsigned) long long family
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#ifdef BOOST_HAS_LONG_LONG
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// Existence
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#define BOOST_HAS_XINT 1
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// Extents
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#ifdef ULLONG_MAX
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#define BOOST_XINT_MAX LLONG_MAX
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#define BOOST_XINT_MIN LLONG_MIN
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#define BOOST_UXINT_MAX ULLONG_MAX
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#elif defined(ULONG_LONG_MAX)
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#define BOOST_XINT_MAX LONG_LONG_MAX
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#define BOOST_XINT_MIN LONG_LONG_MIN
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#define BOOST_UXINT_MAX ULONG_LONG_MAX
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#elif defined(ULONGLONG_MAX)
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#define BOOST_XINT_MAX LONGLONG_MAX
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#define BOOST_XINT_MIN LONGLONG_MIN
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#define BOOST_UXINT_MAX ULONGLONG_MAX
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#elif defined(_LLONG_MAX) && defined(_C2)
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#define BOOST_XINT_MAX _LLONG_MAX
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#define BOOST_XINT_MIN (-_LLONG_MAX - _C2)
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#define BOOST_UXINT_MAX _ULLONG_MAX
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#else // guess
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// Sometimes we get the double-long types without the corresponding constants,
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// e.g. GCC in "-ansi" mode. In this case, we'll just have to work out the
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// values ourselves. (Here we assume a two's complement representation.)
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#define BOOST_XINT_MIN (1LL << (sizeof(::boost::long_long_type) * CHAR_BIT - 1))
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#define BOOST_XINT_MAX (~ BOOST_XINT_MIN)
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#define BOOST_UXINT_MAX (~ 0uLL)
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#endif
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// Types
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typedef ::boost:: long_long_type xint_t;
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typedef ::boost::ulong_long_type uxint_t;
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// (Unsigned) __int64 family
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#elif defined(BOOST_HAS_MS_INT64)
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// Existence
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#define BOOST_HAS_XINT 1
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// Extents
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#ifdef _UI64_MAX
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#define BOOST_XINT_MAX _I64_MAX
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#define BOOST_XINT_MIN _I64_MIN
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#define BOOST_UXINT_MAX _UI64_MAX
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#else // guess
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// The types are exactly 2's-compl. 64-bit, so we'll enter the values directly.
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#define BOOST_XINT_MAX 0x7FFFFFFFFFFFFFFFi64
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#define BOOST_XINT_MIN 0x8000000000000000i64
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#define BOOST_UXINT_MAX 0xFFFFFFFFFFFFFFFFui64
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#endif
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// Types
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typedef __int64 xint_t;
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typedef unsigned __int64 uxint_t;
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// Neither
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#else
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// Non-existence
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#define BOOST_HAS_XINT 0
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// Dummy extents
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#define BOOST_XINT_MAX LONG_MAX
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#define BOOST_XINT_MIN LONG_MIN
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#define BOOST_UXINT_MAX ULONG_MAX
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// Dummy types
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typedef signed long xint_t;
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typedef unsigned long uxint_t;
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#endif // defined(BOOST_HAS_LONG_LONG)/defined(BOOST_HAS_MS_INT64)/else
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/** \def BOOST_HAS_XINT
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\brief Flag for extended integer types.
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Indicates the presence of one of the two common extended integer type
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families, either (<code>unsigned</code>) <code>long long</code> or
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(<code>unsigned</code>) <code>__int64</code>. \c BOOST_HAS_XINT is \c 1 if
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either type family is defined, and \c 0 if neither is.
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*/
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/** \def BOOST_XINT_MAX
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\brief Maximum value for the signed extended integer type.
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\pre \c BOOST_HAS_XINT is \c \#defined to be \c 1.
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Macro constant representing the largest value the signed extended integer
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type supports. Its composition may be another macro, an expression, or a
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literal. Defaulted to \c LONG_MAX if \c BOOST_HAS_XINT is zero.
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*/
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/** \def BOOST_XINT_MIN
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\brief Minimum value for the signed extended integer type.
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\pre \c BOOST_HAS_XINT is \c \#defined to be \c 1.
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Macro constant representing the smallest value the signed extended integer
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type supports. Its composition may be another macro, an expression, or a
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literal. Defaulted to \c LONG_MIN if \c BOOST_HAS_XINT is zero.
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*/
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/** \def BOOST_UXINT_MAX
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\brief Maximum value for the unsigned extended integer type.
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\pre \c BOOST_HAS_XINT is \c \#defined to be \c 1.
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Macro constant representing the largest value the unsigned extended integer
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type supports. Its composition may be another macro, an expression, or a
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literal. Defaulted to \c ULONG_MAX if \c BOOST_HAS_XINT is zero. (Use
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\c 0u for the type's minimum value.)
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*/
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/** \typedef signed long boost::detail::xint_t
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\brief Alias for the signed extended integer type.
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\pre \c BOOST_HAS_XINT is \c \#defined to be \c 1.
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Alias representing the signed extended integer type, no matter which type
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family it came from. Defaulted to <code>signed long</code> if
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\c BOOST_HAS_XINT is zero.
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*/
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/** \typedef unsigned long ::boost::detail::uxint_t
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\brief Alias for the signed extended integer type.
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\pre \c BOOST_HAS_XINT is \c \#defined to be \c 1.
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Alias representing the unsigned extended integer type, no matter which type
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family it came from. Defaulted to <code>unsigned long</code> if
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\c BOOST_HAS_XINT is zero.
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*/
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} // namespace detail
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} // namespace boost
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#endif // BOOST_DETAIL_EXTENDED_INTEGER_HPP
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