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00037 #ifndef _CPP_BITS_INDIRECT_ARRAY_H
00038 #define _CPP_BITS_INDIRECT_ARRAY_H 1
00039
00040 #pragma GCC system_header
00041
00042 namespace std
00043 {
00044 template <class _Tp>
00045 class indirect_array
00046 {
00047 public:
00048 typedef _Tp value_type;
00049
00050
00051 indirect_array& operator= (const indirect_array&);
00052
00053 void operator= (const valarray<_Tp>&) const;
00054 void operator*= (const valarray<_Tp>&) const;
00055 void operator/= (const valarray<_Tp>&) const;
00056 void operator%= (const valarray<_Tp>&) const;
00057 void operator+= (const valarray<_Tp>&) const;
00058 void operator-= (const valarray<_Tp>&) const;
00059 void operator^= (const valarray<_Tp>&) const;
00060 void operator&= (const valarray<_Tp>&) const;
00061 void operator|= (const valarray<_Tp>&) const;
00062 void operator<<= (const valarray<_Tp>&) const;
00063 void operator>>= (const valarray<_Tp>&) const;
00064 void operator= (const _Tp&);
00065
00066
00067 template<class _Dom>
00068 void operator= (const _Expr<_Dom, _Tp>&) const;
00069 template<class _Dom>
00070 void operator*= (const _Expr<_Dom, _Tp>&) const;
00071 template<class _Dom>
00072 void operator/= (const _Expr<_Dom, _Tp>&) const;
00073 template<class _Dom>
00074 void operator%= (const _Expr<_Dom, _Tp>&) const;
00075 template<class _Dom>
00076 void operator+= (const _Expr<_Dom, _Tp>&) const;
00077 template<class _Dom>
00078 void operator-= (const _Expr<_Dom, _Tp>&) const;
00079 template<class _Dom>
00080 void operator^= (const _Expr<_Dom, _Tp>&) const;
00081 template<class _Dom>
00082 void operator&= (const _Expr<_Dom, _Tp>&) const;
00083 template<class _Dom>
00084 void operator|= (const _Expr<_Dom, _Tp>&) const;
00085 template<class _Dom>
00086 void operator<<= (const _Expr<_Dom, _Tp>&) const;
00087 template<class _Dom>
00088 void operator>>= (const _Expr<_Dom, _Tp>&) const;
00089
00090 private:
00091 indirect_array (const indirect_array&);
00092 indirect_array (_Array<_Tp>, size_t, _Array<size_t>);
00093
00094 friend class valarray<_Tp>;
00095 friend class gslice_array<_Tp>;
00096
00097 const size_t _M_sz;
00098 const _Array<size_t> _M_index;
00099 const _Array<_Tp> _M_array;
00100
00101
00102 indirect_array ();
00103 };
00104
00105 template<typename _Tp>
00106 inline indirect_array<_Tp>::indirect_array(const indirect_array<_Tp>& __a)
00107 : _M_sz (__a._M_sz), _M_index (__a._M_index),
00108 _M_array (__a._M_array) {}
00109
00110 template<typename _Tp>
00111 inline
00112 indirect_array<_Tp>::indirect_array (_Array<_Tp> __a, size_t __s,
00113 _Array<size_t> __i)
00114 : _M_sz (__s), _M_index (__i), _M_array (__a) {}
00115
00116 template<typename _Tp>
00117 inline indirect_array<_Tp>&
00118 indirect_array<_Tp>::operator=(const indirect_array<_Tp>& __a)
00119 {
00120 __valarray_copy(__a._M_array, _M_sz, __a._M_index, _M_array, _M_index);
00121 return *this;
00122 }
00123
00124
00125 template<typename _Tp>
00126 inline void
00127 indirect_array<_Tp>::operator= (const _Tp& __t)
00128 { __valarray_fill(_M_array, _M_index, _M_sz, __t); }
00129
00130 template<typename _Tp>
00131 inline void
00132 indirect_array<_Tp>::operator= (const valarray<_Tp>& __v) const
00133 { __valarray_copy (_Array<_Tp> (__v), _M_sz, _M_array, _M_index); }
00134
00135 template<typename _Tp>
00136 template<class _Dom>
00137 inline void
00138 indirect_array<_Tp>::operator= (const _Expr<_Dom,_Tp>& __e) const
00139 { __valarray_copy (__e, _M_sz, _M_array, _M_index); }
00140
00141 #undef _DEFINE_VALARRAY_OPERATOR
00142 #define _DEFINE_VALARRAY_OPERATOR(op, name) \
00143 template<typename _Tp> \
00144 inline void \
00145 indirect_array<_Tp>::operator op##= (const valarray<_Tp>& __v) const \
00146 { \
00147 _Array_augmented_##name (_M_array, _M_index, _Array<_Tp> (__v), _M_sz); \
00148 } \
00149 \
00150 template<typename _Tp> template<class _Dom> \
00151 inline void \
00152 indirect_array<_Tp>::operator op##= (const _Expr<_Dom,_Tp>& __e) const \
00153 { \
00154 _Array_augmented_##name (_M_array, _M_index, __e, _M_sz); \
00155 }
00156
00157 _DEFINE_VALARRAY_OPERATOR(*, multiplies)
00158 _DEFINE_VALARRAY_OPERATOR(/, divides)
00159 _DEFINE_VALARRAY_OPERATOR(%, modulus)
00160 _DEFINE_VALARRAY_OPERATOR(+, plus)
00161 _DEFINE_VALARRAY_OPERATOR(-, minus)
00162 _DEFINE_VALARRAY_OPERATOR(^, xor)
00163 _DEFINE_VALARRAY_OPERATOR(&, and)
00164 _DEFINE_VALARRAY_OPERATOR(|, or)
00165 _DEFINE_VALARRAY_OPERATOR(<<, shift_left)
00166 _DEFINE_VALARRAY_OPERATOR(>>, shift_right)
00167
00168 #undef _DEFINE_VALARRAY_OPERATOR
00169
00170 }
00171
00172 #endif
00173
00174
00175
00176