ceph/src/boost/libs/log/include/boost/log/detail/tagged_integer.hpp

   1 /*
   2  *          Copyright Andrey Semashev 2007 - 2015.
   3  * Distributed under the Boost Software License, Version 1.0.
   4  *    (See accompanying file LICENSE_1_0.txt or copy at
   5  *          http://www.boost.org/LICENSE_1_0.txt)
   6  */
   7 /*!
   8  * \file   tagged_integer.hpp
   9  * \author Andrey Semashev
  10  * \date   11.01.2008
  11  *
  12  * \brief  This header is the Boost.Log library implementation, see the library documentation
  13  *         at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
  14  */
  15
  16 #ifndef BOOST_LOG_TAGGED_INTEGER_HPP_INCLUDED_
  17 #define BOOST_LOG_TAGGED_INTEGER_HPP_INCLUDED_
  18
  19 #include <boost/log/detail/config.hpp>
  20 #include <boost/log/detail/header.hpp>
  21
  22 #ifdef BOOST_HAS_PRAGMA_ONCE
  23 #pragma once
  24 #endif
  25
  26 namespace boost {
  27
  28 BOOST_LOG_OPEN_NAMESPACE
  29
  30 namespace aux {
  31
  32 //! A tagged integer wrapper for type safety
  33 template< typename IntT, typename TagT >
  34 struct tagged_integer
  35 {
  36     //! Contained value type
  37     typedef IntT integer_type;
  38     //! Tag
  39     typedef TagT tag;
  40
  41     //! Contained value
  42     integer_type value;
  43
  44     //! Conversion operator
  45     BOOST_CONSTEXPR operator integer_type() const BOOST_NOEXCEPT { return value; }
  46
  47     //  Increment
  48     tagged_integer& operator++ () BOOST_NOEXCEPT { ++value; return *this; }
  49     tagged_integer operator++ (int) BOOST_NOEXCEPT { tagged_integer temp = *this; ++value; return temp; }
  50     //  Decrement
  51     tagged_integer& operator-- () BOOST_NOEXCEPT { --value; return *this; }
  52     tagged_integer operator-- (int) BOOST_NOEXCEPT { tagged_integer temp = *this; --value; return temp; }
  53
  54 #define BOOST_LOG_TAGGED_INTEGER_OP(op)\
  55     tagged_integer& operator op (tagged_integer const& that) BOOST_NOEXCEPT { value op that.value; return *this; }
  56
  57     BOOST_LOG_TAGGED_INTEGER_OP(|=)
  58     BOOST_LOG_TAGGED_INTEGER_OP(&=)
  59     BOOST_LOG_TAGGED_INTEGER_OP(^=)
  60     BOOST_LOG_TAGGED_INTEGER_OP(+=)
  61     BOOST_LOG_TAGGED_INTEGER_OP(-=)
  62     BOOST_LOG_TAGGED_INTEGER_OP(*=)
  63     BOOST_LOG_TAGGED_INTEGER_OP(/=)
  64     BOOST_LOG_TAGGED_INTEGER_OP(%=)
  65
  66 #undef BOOST_LOG_TAGGED_INTEGER_OP
  67
  68     //! Inversion operator
  69     tagged_integer& operator~ () BOOST_NOEXCEPT { ~value; return *this; }
  70
  71     //  Shift operators
  72     template< typename T >
  73     tagged_integer& operator<<= (T const& that) BOOST_NOEXCEPT { value <<= that; return *this; }
  74     template< typename T >
  75     tagged_integer& operator>>= (T const& that) BOOST_NOEXCEPT { value >>= that; return *this; }
  76
  77 private:
  78     //  Protection against improper usage
  79     template< typename T1, typename T2 >
  80     tagged_integer& operator<<= (tagged_integer< T1, T2 > const&);
  81     template< typename T1, typename T2 >
  82     tagged_integer& operator>>= (tagged_integer< T1, T2 > const&);
  83 };
  84
  85     //  Relational operators
  86 #define BOOST_LOG_TAGGED_INTEGER_OP(op)\
  87     template< typename IntT, typename TagT >\
  88     inline bool operator op (\
  89         tagged_integer< IntT, TagT > const& left, tagged_integer< IntT, TagT > const& right) BOOST_NOEXCEPT\
  90     {\
  91         return (left.value op right.value);\
  92     }
  93
  94 BOOST_LOG_TAGGED_INTEGER_OP(==)
  95 BOOST_LOG_TAGGED_INTEGER_OP(!=)
  96 BOOST_LOG_TAGGED_INTEGER_OP(<)
  97 BOOST_LOG_TAGGED_INTEGER_OP(>)
  98 BOOST_LOG_TAGGED_INTEGER_OP(<=)
  99 BOOST_LOG_TAGGED_INTEGER_OP(>=)
 100
 101 #undef BOOST_LOG_TAGGED_INTEGER_OP
 102
 103 #define BOOST_LOG_TAGGED_INTEGER_OP(op)\
 104     template< typename IntT, typename TagT >\
 105     inline tagged_integer< IntT, TagT > operator op (\
 106         tagged_integer< IntT, TagT > const& left, tagged_integer< IntT, TagT > const& right) BOOST_NOEXCEPT\
 107     {\
 108         tagged_integer< IntT, TagT > temp = left;\
 109         temp op##= right;\
 110         return temp;\
 111     }
 112
 113 BOOST_LOG_TAGGED_INTEGER_OP(|)
 114 BOOST_LOG_TAGGED_INTEGER_OP(&)
 115 BOOST_LOG_TAGGED_INTEGER_OP(^)
 116 BOOST_LOG_TAGGED_INTEGER_OP(+)
 117 BOOST_LOG_TAGGED_INTEGER_OP(-)
 118 BOOST_LOG_TAGGED_INTEGER_OP(*)
 119 BOOST_LOG_TAGGED_INTEGER_OP(/)
 120 BOOST_LOG_TAGGED_INTEGER_OP(%)
 121
 122 #undef BOOST_LOG_TAGGED_INTEGER_OP
 123
 124 #define BOOST_LOG_TAGGED_INTEGER_OP(op)\
 125     template< typename IntT, typename TagT, typename T >\
 126     inline tagged_integer< IntT, TagT > operator op (\
 127         tagged_integer< IntT, TagT > const& left, T const& right) BOOST_NOEXCEPT\
 128     {\
 129         tagged_integer< IntT, TagT > temp = left;\
 130         temp op##= right;\
 131         return temp;\
 132     }
 133
 134 BOOST_LOG_TAGGED_INTEGER_OP(<<)
 135 BOOST_LOG_TAGGED_INTEGER_OP(>>)
 136
 137 #undef BOOST_LOG_TAGGED_INTEGER_OP
 138
 139 } // namespace aux
 140
 141 BOOST_LOG_CLOSE_NAMESPACE // namespace log
 142
 143 } // namespace boost
 144
 145 #include <boost/log/detail/footer.hpp>
 146
 147 #endif // BOOST_LOG_TAGGED_INTEGER_HPP_INCLUDED_