[111] | 1 | // file : xsd/cxx/tree/istream.hxx |
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| 2 | // author : Boris Kolpackov <boris@codesynthesis.com> |
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| 3 | // copyright : Copyright (c) 2005-2008 Code Synthesis Tools CC |
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| 4 | // license : GNU GPL v2 + exceptions; see accompanying LICENSE file |
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| 5 | |
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| 6 | #ifndef XSD_CXX_TREE_ISTREAM_HXX |
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| 7 | #define XSD_CXX_TREE_ISTREAM_HXX |
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| 8 | |
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| 9 | #include <cstddef> // std::size_t |
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| 10 | |
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| 11 | #include <xsd/cxx/tree/istream-fwd.hxx> |
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| 12 | |
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| 13 | namespace xsd |
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| 14 | { |
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| 15 | namespace cxx |
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| 16 | { |
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| 17 | namespace tree |
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| 18 | { |
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| 19 | class istream_common |
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| 20 | { |
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| 21 | public: |
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| 22 | template <typename X> |
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| 23 | struct as_size |
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| 24 | { |
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| 25 | explicit as_size (X& x) : x_ (x) {} |
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| 26 | X& x_; |
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| 27 | }; |
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| 28 | |
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| 29 | |
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| 30 | // 8-bit |
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| 31 | // |
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| 32 | template <typename X> |
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| 33 | struct as_int8 |
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| 34 | { |
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| 35 | explicit as_int8 (X& x) : x_ (x) {} |
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| 36 | X& x_; |
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| 37 | }; |
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| 38 | |
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| 39 | template <typename X> |
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| 40 | struct as_uint8 |
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| 41 | { |
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| 42 | explicit as_uint8 (X& x) : x_ (x) {} |
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| 43 | X& x_; |
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| 44 | }; |
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| 45 | |
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| 46 | |
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| 47 | // 16-bit |
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| 48 | // |
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| 49 | template <typename X> |
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| 50 | struct as_int16 |
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| 51 | { |
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| 52 | explicit as_int16 (X& x) : x_ (x) {} |
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| 53 | X& x_; |
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| 54 | }; |
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| 55 | |
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| 56 | template <typename X> |
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| 57 | struct as_uint16 |
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| 58 | { |
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| 59 | explicit as_uint16 (X& x) : x_ (x) {} |
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| 60 | X& x_; |
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| 61 | }; |
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| 62 | |
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| 63 | |
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| 64 | // 32-bit |
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| 65 | // |
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| 66 | template <typename X> |
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| 67 | struct as_int32 |
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| 68 | { |
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| 69 | explicit as_int32 (X& x) : x_ (x) {} |
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| 70 | X& x_; |
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| 71 | }; |
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| 72 | |
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| 73 | template <typename X> |
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| 74 | struct as_uint32 |
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| 75 | { |
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| 76 | explicit as_uint32 (X& x) : x_ (x) {} |
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| 77 | X& x_; |
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| 78 | }; |
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| 79 | |
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| 80 | |
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| 81 | // 64-bit |
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| 82 | // |
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| 83 | template <typename X> |
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| 84 | struct as_int64 |
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| 85 | { |
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| 86 | explicit as_int64 (X& x) : x_ (x) {} |
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| 87 | X& x_; |
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| 88 | }; |
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| 89 | |
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| 90 | template <typename X> |
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| 91 | struct as_uint64 |
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| 92 | { |
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| 93 | explicit as_uint64 (X& x) : x_ (x) {} |
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| 94 | X& x_; |
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| 95 | }; |
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| 96 | |
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| 97 | |
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| 98 | // Boolean |
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| 99 | // |
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| 100 | template <typename X> |
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| 101 | struct as_bool |
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| 102 | { |
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| 103 | explicit as_bool (X& x) : x_ (x) {} |
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| 104 | X& x_; |
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| 105 | }; |
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| 106 | |
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| 107 | |
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| 108 | // Floating-point |
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| 109 | // |
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| 110 | template <typename X> |
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| 111 | struct as_float32 |
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| 112 | { |
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| 113 | explicit as_float32 (X& x) : x_ (x) {} |
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| 114 | X& x_; |
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| 115 | }; |
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| 116 | |
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| 117 | template <typename X> |
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| 118 | struct as_float64 |
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| 119 | { |
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| 120 | explicit as_float64 (X& x) : x_ (x) {} |
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| 121 | X& x_; |
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| 122 | }; |
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| 123 | }; |
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| 124 | |
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| 125 | template<typename S> |
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| 126 | class istream: public istream_common |
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| 127 | { |
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| 128 | public: |
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| 129 | explicit |
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| 130 | istream (S& s) |
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| 131 | : s_ (s) |
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| 132 | { |
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| 133 | } |
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| 134 | |
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| 135 | S& |
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| 136 | impl () |
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| 137 | { |
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| 138 | return s_; |
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| 139 | } |
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| 140 | |
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| 141 | private: |
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| 142 | istream (const istream&); |
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| 143 | istream& |
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| 144 | operator= (const istream&); |
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| 145 | |
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| 146 | private: |
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| 147 | S& s_; |
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| 148 | }; |
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| 149 | |
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| 150 | |
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| 151 | // 8-bit |
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| 152 | // |
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| 153 | template <typename S> |
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| 154 | inline istream<S>& |
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| 155 | operator>> (istream<S>& s, signed char& x) |
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| 156 | { |
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| 157 | istream_common::as_int8<signed char> as_int8 (x); |
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| 158 | return s >> as_int8; |
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| 159 | } |
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| 160 | |
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| 161 | template <typename S> |
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| 162 | inline istream<S>& |
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| 163 | operator>> (istream<S>& s, unsigned char& x) |
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| 164 | { |
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| 165 | istream_common::as_uint8<unsigned char> as_uint8 (x); |
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| 166 | return s >> as_uint8; |
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| 167 | } |
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| 168 | |
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| 169 | |
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| 170 | // 16-bit |
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| 171 | // |
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| 172 | template <typename S> |
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| 173 | inline istream<S>& |
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| 174 | operator>> (istream<S>& s, short& x) |
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| 175 | { |
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| 176 | istream_common::as_int16<short> as_int16 (x); |
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| 177 | return s >> as_int16; |
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| 178 | } |
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| 179 | |
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| 180 | template <typename S> |
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| 181 | inline istream<S>& |
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| 182 | operator>> (istream<S>& s, unsigned short& x) |
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| 183 | { |
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| 184 | istream_common::as_uint16<unsigned short> as_uint16 (x); |
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| 185 | return s >> as_uint16; |
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| 186 | } |
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| 187 | |
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| 188 | |
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| 189 | // 32-bit |
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| 190 | // |
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| 191 | template <typename S> |
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| 192 | inline istream<S>& |
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| 193 | operator>> (istream<S>& s, int& x) |
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| 194 | { |
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| 195 | istream_common::as_int32<int> as_int32 (x); |
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| 196 | return s >> as_int32; |
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| 197 | } |
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| 198 | |
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| 199 | template <typename S> |
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| 200 | inline istream<S>& |
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| 201 | operator>> (istream<S>& s, unsigned int& x) |
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| 202 | { |
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| 203 | istream_common::as_uint32<unsigned int> as_uint32 (x); |
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| 204 | return s >> as_uint32; |
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| 205 | } |
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| 206 | |
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| 207 | |
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| 208 | // 64-bit |
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| 209 | // |
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| 210 | template <typename S> |
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| 211 | inline istream<S>& |
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| 212 | operator>> (istream<S>& s, long long& x) |
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| 213 | { |
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| 214 | istream_common::as_int64<long long> as_int64 (x); |
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| 215 | return s >> as_int64; |
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| 216 | } |
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| 217 | |
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| 218 | template <typename S> |
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| 219 | inline istream<S>& |
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| 220 | operator>> (istream<S>& s, unsigned long long& x) |
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| 221 | { |
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| 222 | istream_common::as_uint64<unsigned long long> as_uint64 (x); |
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| 223 | return s >> as_uint64; |
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| 224 | } |
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| 225 | |
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| 226 | // Boolean |
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| 227 | // |
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| 228 | template <typename S> |
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| 229 | inline istream<S>& |
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| 230 | operator>> (istream<S>& s, bool& x) |
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| 231 | { |
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| 232 | istream_common::as_bool<bool> as_bool (x); |
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| 233 | return s >> as_bool; |
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| 234 | } |
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| 235 | |
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| 236 | |
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| 237 | // Floating-point |
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| 238 | // |
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| 239 | template <typename S> |
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| 240 | inline istream<S>& |
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| 241 | operator>> (istream<S>& s, float& x) |
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| 242 | { |
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| 243 | istream_common::as_float32<float> as_float32 (x); |
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| 244 | return s >> as_float32; |
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| 245 | } |
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| 246 | |
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| 247 | template <typename S> |
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| 248 | inline istream<S>& |
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| 249 | operator>> (istream<S>& s, double& x) |
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| 250 | { |
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| 251 | istream_common::as_float64<double> as_float64 (x); |
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| 252 | return s >> as_float64; |
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| 253 | } |
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| 254 | } |
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| 255 | } |
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| 256 | } |
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| 257 | |
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| 258 | #endif // XSD_CXX_TREE_ISTREAM_HXX |
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