std_valarray.h

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{
    __valarray_copy (__ga._M_array, _Array<size_t>(__ga._M_index),
                     _Array<_Tp>(_M_data), _M_size);
    return *this;
}

template<typename _Tp>
inline valarray<_Tp>&
valarray<_Tp>::operator= (const mask_array<_Tp>& __ma)
{
    __valarray_copy (__ma._M_array, __ma._M_mask,
                     _Array<_Tp>(_M_data), _M_size);
    return *this;
}

template<typename _Tp>
inline valarray<_Tp>&
valarray<_Tp>::operator= (const indirect_array<_Tp>& __ia)
{
    __valarray_copy (__ia._M_array, __ia._M_index,
                     _Array<_Tp>(_M_data), _M_size);
    return *this;
}

template<typename _Tp> template<class _Dom>
inline valarray<_Tp>&
valarray<_Tp>::operator= (const _Expr<_Dom, _Tp>& __e)
{
    __valarray_copy (__e, _M_size, _Array<_Tp>(_M_data));
    return *this;
}

template<typename _Tp>
inline _Expr<_SClos<_ValArray,_Tp>, _Tp>
valarray<_Tp>::operator[] (slice __s) const
{
    typedef _SClos<_ValArray,_Tp> _Closure;
    return _Expr<_Closure, _Tp> (_Closure (_Array<_Tp>(_M_data), __s));
}

template<typename _Tp>
inline slice_array<_Tp>
valarray<_Tp>::operator[] (slice __s)
{
    return slice_array<_Tp> (_Array<_Tp>(_M_data), __s);
}

template<typename _Tp>
inline _Expr<_GClos<_ValArray,_Tp>, _Tp>
valarray<_Tp>::operator[] (const gslice& __gs) const
{
    typedef _GClos<_ValArray,_Tp> _Closure;
    return _Expr<_Closure, _Tp>
        (_Closure (_Array<_Tp>(_M_data), __gs._M_index->_M_index));
}

template<typename _Tp>
inline gslice_array<_Tp>
valarray<_Tp>::operator[] (const gslice& __gs)
{
    return gslice_array<_Tp>
        (_Array<_Tp>(_M_data), __gs._M_index->_M_index);
}

template<typename _Tp>
inline valarray<_Tp>
valarray<_Tp>::operator[] (const valarray<bool>& __m) const
{
    size_t __s (0);
    size_t __e (__m.size ());
    for (size_t __i=0; __i<__e; ++__i)
        if (__m[__i]) ++__s;
    return valarray<_Tp> (mask_array<_Tp> (_Array<_Tp>(_M_data), __s,
                                           _Array<bool> (__m)));
}

template<typename _Tp>
inline mask_array<_Tp>
valarray<_Tp>::operator[] (const valarray<bool>& __m)
{
    size_t __s (0);
    size_t __e (__m.size ());
    for (size_t __i=0; __i<__e; ++__i)
        if (__m[__i]) ++__s;
    return mask_array<_Tp> (_Array<_Tp>(_M_data), __s, _Array<bool> (__m));
}

template<typename _Tp>
inline _Expr<_IClos<_ValArray,_Tp>, _Tp>
valarray<_Tp>::operator[] (const valarray<size_t>& __i) const
{
    typedef _IClos<_ValArray,_Tp> _Closure;
    return _Expr<_Closure, _Tp> (_Closure (*this, __i));
}

template<typename _Tp>
inline indirect_array<_Tp>
valarray<_Tp>::operator[] (const valarray<size_t>& __i)
{
    return indirect_array<_Tp> (_Array<_Tp>(_M_data), __i.size(),
                                _Array<size_t> (__i));
}

template<class _Tp>
inline size_t valarray<_Tp>::size () const { return _M_size; }

template<class _Tp>
inline _Tp
valarray<_Tp>::sum () const
{
    return accumulate (_M_data, _M_data + _M_size, _Tp ());
}

template<typename _Tp>
inline _Tp
valarray<_Tp>::product () const
{
    return accumulate (_M_data, _M_data+_M_size, _Tp(1), multiplies<_Tp> ());
}

template <class _Tp>
inline valarray<_Tp>
valarray<_Tp>::shift (int __n) const
{
    _Tp* const __a = static_cast<_Tp*> (alloca (sizeof(_Tp) * _M_size));
    if (! __n)                          // __n == 0: no shift
        __valarray_copy (_M_data, _M_size, __a);
    else if (__n > 0) {                  // __n > 0: shift left
        if (__n > _M_size)
            __valarray_fill(__a, __n, _Tp());
        else {
            __valarray_copy (_M_data+__n, _M_size-__n, __a);
            __valarray_fill (__a+_M_size-__n, __n, _Tp());
        }
    }
    else {                             // __n < 0: shift right
        __valarray_copy (_M_data, _M_size+__n, __a-__n);
        __valarray_fill(__a, -__n, _Tp());
    }
    return valarray<_Tp> (__a, _M_size);
}

template <class _Tp>
inline valarray<_Tp>
valarray<_Tp>::cshift (int __n) const
{
    _Tp* const __a = static_cast<_Tp*> (alloca (sizeof(_Tp) * _M_size));
    if (! __n)                          // __n == 0: no cshift
        __valarray_copy(_M_data, _M_size, __a);
    else if (__n > 0) {                 // __n > 0: cshift left
        __valarray_copy (_M_data, __n, __a + _M_size-__n);
        __valarray_copy (_M_data + __n, _M_size-__n, __a);
    }
    else {                            // __n < 0: cshift right
        __valarray_copy (_M_data + _M_size + __n, -__n, __a);
        __valarray_copy (_M_data, _M_size + __n, __a - __n);
    }
    return valarray<_Tp> (__a, _M_size);
}

template <class _Tp>
inline void
valarray<_Tp>::resize (size_t __n, _Tp __c)
{
    if (_M_size != __n) {
        delete[] _M_data;
        _M_size = __n;
        _M_data = new _Tp[_M_size];
    }
    __valarray_fill (_M_data, _M_size, __c);
}

template<typename _Tp>
inline _Tp
valarray<_Tp>::min() const
{
    return *min_element (_M_data, _M_data+_M_size);
}

template<typename _Tp>
inline _Tp
valarray<_Tp>::max() const
{
    return *max_element (_M_data, _M_data+_M_size);
}

template<class _Tp>
inline _Expr<_ValFunClos<_ValArray,_Tp>,_Tp>
valarray<_Tp>::apply (_Tp func (_Tp)) const
{
    typedef _ValFunClos<_ValArray,_Tp> _Closure;
    return _Expr<_Closure,_Tp> (_Closure (*this, func));
}

template<class _Tp>
inline _Expr<_RefFunClos<_ValArray,_Tp>,_Tp>
valarray<_Tp>::apply (_Tp func (const _Tp &)) const
{
    typedef _RefFunClos<_ValArray,_Tp> _Closure;
    return _Expr<_Closure,_Tp> (_Closure (*this, func));
}

#define _DEFINE_VALARRAY_UNARY_OPERATOR(_Op, _Name)                     \
  template<typename _Tp>						\
  inline _Expr<_UnClos<_Name,_ValArray,_Tp>, _Tp>               	\
  valarray<_Tp>::operator##_Op() const					\
  {									\
      typedef _UnClos<_Name,_ValArray,_Tp> _Closure;	                \
      return _Expr<_Closure, _Tp> (_Closure (*this));			\
  }

    _DEFINE_VALARRAY_UNARY_OPERATOR(+, _Unary_plus)
    _DEFINE_VALARRAY_UNARY_OPERATOR(-, negate)
    _DEFINE_VALARRAY_UNARY_OPERATOR(~, _Bitwise_not)

#undef _DEFINE_VALARRAY_UNARY_OPERATOR
  
  template<typename _Tp>
  inline _Expr<_UnClos<logical_not,_ValArray,_Tp>, bool>
  valarray<_Tp>::operator!() const
  {
      typedef _UnClos<logical_not,_ValArray,_Tp> _Closure;
      return _Expr<_Closure, bool> (_Closure (*this));
  }

#define _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(_Op, _Name)               \
  template<class _Tp>							\
  inline valarray<_Tp> &						\
  valarray<_Tp>::operator##_Op##= (const _Tp &__t)			\
  {									\
      _Array_augmented_##_Name (_Array<_Tp>(_M_data), _M_size, __t);	\
      return *this;							\
  }									\
									\
  template<class _Tp>							\
  inline valarray<_Tp> &						\
  valarray<_Tp>::operator##_Op##= (const valarray<_Tp> &__v)		\
  {									\
      _Array_augmented_##_Name (_Array<_Tp>(_M_data), _M_size, 		\
                               _Array<_Tp>(__v._M_data));		\
      return *this;							\
  }

_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(+, plus)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(-, minus)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(*, multiplies)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(/, divides)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(%, modulus)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(^, xor)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(&, and)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(|, or)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(<<, shift_left)
_DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT(>>, shift_right)

#undef _DEFINE_VALARRAY_AUGMENTED_ASSIGNMENT


#define _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(_Op, _Name)          \
  template<class _Tp> template<class _Dom>				\
  inline valarray<_Tp> &						\
  valarray<_Tp>::operator##_Op##= (const _Expr<_Dom,_Tp> &__e)		\
  {									\
      _Array_augmented_##_Name (_Array<_Tp>(_M_data), __e, _M_size);	\
      return *this;							\
  }

_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(+, plus)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(-, minus)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(*, multiplies)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(/, divides)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(%, modulus)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(^, xor)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(&, and)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(|, or)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(<<, shift_left)
_DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT(>>, shift_right)

#undef _DEFINE_VALARRAY_EXPR_AUGMENTED_ASSIGNMENT
    

#define _DEFINE_BINARY_OPERATOR(_Op, _Name)				\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp>, _Tp>        \
  operator##_Op (const valarray<_Tp> &__v, const valarray<_Tp> &__w)	\
  {									\
      typedef _BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, _Tp> (_Closure (__v, __w));		\
  }									\
									\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_ValArray,_Constant,_Tp,_Tp>,_Tp>         \
  operator##_Op (const valarray<_Tp> &__v, const _Tp &__t)		\
  {									\
      typedef _BinClos<_Name,_ValArray,_Constant,_Tp,_Tp> _Closure;	\
      return _Expr<_Closure, _Tp> (_Closure (__v, __t));	        \
  }									\
									\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_Constant,_ValArray,_Tp,_Tp>,_Tp>         \
  operator##_Op (const _Tp &__t, const valarray<_Tp> &__v)		\
  {									\
      typedef _BinClos<_Name,_Constant,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, _Tp> (_Closure (__t, __v));        	\
  }

_DEFINE_BINARY_OPERATOR(+, plus)
_DEFINE_BINARY_OPERATOR(-, minus)
_DEFINE_BINARY_OPERATOR(*, multiplies)
_DEFINE_BINARY_OPERATOR(/, divides)
_DEFINE_BINARY_OPERATOR(%, modulus)
_DEFINE_BINARY_OPERATOR(^, _Bitwise_xor)
_DEFINE_BINARY_OPERATOR(&, _Bitwise_and)
_DEFINE_BINARY_OPERATOR(|, _Bitwise_or)
_DEFINE_BINARY_OPERATOR(<<, _Shift_left)
_DEFINE_BINARY_OPERATOR(>>, _Shift_right)

#undef _DEFINE_BINARY_OPERATOR

#define _DEFINE_LOGICAL_OPERATOR(_Op, _Name)				\
  template<typename _Tp>						\
  inline _Expr<_BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp>,bool>        \
  operator##_Op (const valarray<_Tp> &__v, const valarray<_Tp> &__w)	\
  {									\
      typedef _BinClos<_Name,_ValArray,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, bool> (_Closure (__v, __w));               \
  }									\
									\
  template<class _Tp>							\
  inline _Expr<_BinClos<_Name,_ValArray,_Constant,_Tp,_Tp>,bool>        \
  operator##_Op (const valarray<_Tp> &__v, const _Tp &__t)		\
  {									\
      typedef _BinClos<_Name,_ValArray,_Constant,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, bool> (_Closure (__v, __t));       	\
  }									\
									\
  template<class _Tp>							\
  inline _Expr<_BinClos<_Name,_Constant,_ValArray,_Tp,_Tp>,bool>        \
  operator##_Op (const _Tp &__t, const valarray<_Tp> &__v)		\
  {									\
      typedef _BinClos<_Name,_Constant,_ValArray,_Tp,_Tp> _Closure;     \
      return _Expr<_Closure, bool> (_Closure (__t, __v));	        \
  }

_DEFINE_LOGICAL_OPERATOR(&&, logical_and)
_DEFINE_LOGICAL_OPERATOR(||, logical_or)
_DEFINE_LOGICAL_OPERATOR(==, equal_to)
_DEFINE_LOGICAL_OPERATOR(!=, not_equal_to)
_DEFINE_LOGICAL_OPERATOR(<, less)
_DEFINE_LOGICAL_OPERATOR(>, greater)
_DEFINE_LOGICAL_OPERATOR(<=, less_equal)
_DEFINE_LOGICAL_OPERATOR(>=, greater_equal)

#undef _DEFINE_VALARRAY_OPERATOR

#undef _G_NO_VALARRAY_TEMPLATE_EXPORT

} // extern "C++"

#endif // __STD_VALARRAY__

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// mode:c++
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