1b749ae95e
Store nested closures by value not by reference, to prevent holding invalid references to temporaries that have been destroyed. This changes the layout of the closure types, so change their linkage names, but moving them to a different namespace. PR libstdc++/57997 PR libstdc++/83860 * include/bits/gslice_array.h (gslice_array): Define default constructor as deleted, as per C++11 standard. * include/bits/mask_array.h (mask_array): Likewise. * include/bits/slice_array.h (slice_array): Likewise. * include/bits/valarray_after.h (_GBase, _GClos, _IBase, _IClos): Move to namespace __detail. (_GBase::_M_expr, _IBase::_M_expr): Use _ValArrayRef for type of data members. * include/bits/valarray_before.h (_ValArrayRef): New helper for type of data members in closure objects. (_FunBase, _ValFunClos, _RefFunClos, _UnBase, _UnClos, _BinBase) (_BinBase2, _BinBase1, _BinClos, _SBase, _SClos): Move to namespace __detail. (_FunBase::_M_expr, _UnBase::_M_expr, _BinBase::_M_expr1) (_BinBase::_M_expr2, _BinBase2::_M_expr1, _BinBase1::_M_expr2) (_SBase::_M_expr): Use _ValArrayRef for type of data members. * include/std/valarray (_UnClos, _BinClos, _SClos, _GClos, _IClos) (_ValFunClos, _RefFunClos): Move to namespace __detail and add using-declarations to namespace std. * testsuite/26_numerics/valarray/83860.cc: New. From-SVN: r259844
224 lines
7.7 KiB
C++
224 lines
7.7 KiB
C++
// The template and inlines for the -*- C++ -*- gslice_array class.
|
|
|
|
// Copyright (C) 1997-2018 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of the GNU ISO C++ Library. This library is free
|
|
// software; you can redistribute it and/or modify it under the
|
|
// terms of the GNU General Public License as published by the
|
|
// Free Software Foundation; either version 3, or (at your option)
|
|
// any later version.
|
|
|
|
// This library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// Under Section 7 of GPL version 3, you are granted additional
|
|
// permissions described in the GCC Runtime Library Exception, version
|
|
// 3.1, as published by the Free Software Foundation.
|
|
|
|
// You should have received a copy of the GNU General Public License and
|
|
// a copy of the GCC Runtime Library Exception along with this program;
|
|
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
/** @file bits/gslice_array.h
|
|
* This is an internal header file, included by other library headers.
|
|
* Do not attempt to use it directly. @headername{valarray}
|
|
*/
|
|
|
|
// Written by Gabriel Dos Reis <Gabriel.Dos-Reis@DPTMaths.ENS-Cachan.Fr>
|
|
|
|
#ifndef _GSLICE_ARRAY_H
|
|
#define _GSLICE_ARRAY_H 1
|
|
|
|
#pragma GCC system_header
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
{
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
/**
|
|
* @addtogroup numeric_arrays
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Reference to multi-dimensional subset of an array.
|
|
*
|
|
* A gslice_array is a reference to the actual elements of an array
|
|
* specified by a gslice. The way to get a gslice_array is to call
|
|
* operator[](gslice) on a valarray. The returned gslice_array then
|
|
* permits carrying operations out on the referenced subset of elements in
|
|
* the original valarray. For example, operator+=(valarray) will add
|
|
* values to the subset of elements in the underlying valarray this
|
|
* gslice_array refers to.
|
|
*
|
|
* @param Tp Element type.
|
|
*/
|
|
template<typename _Tp>
|
|
class gslice_array
|
|
{
|
|
public:
|
|
typedef _Tp value_type;
|
|
|
|
// _GLIBCXX_RESOLVE_LIB_DEFECTS
|
|
// 253. valarray helper functions are almost entirely useless
|
|
|
|
/// Copy constructor. Both slices refer to the same underlying array.
|
|
gslice_array(const gslice_array&);
|
|
|
|
/// Assignment operator. Assigns slice elements to corresponding
|
|
/// elements of @a a.
|
|
gslice_array& operator=(const gslice_array&);
|
|
|
|
/// Assign slice elements to corresponding elements of @a v.
|
|
void operator=(const valarray<_Tp>&) const;
|
|
/// Multiply slice elements by corresponding elements of @a v.
|
|
void operator*=(const valarray<_Tp>&) const;
|
|
/// Divide slice elements by corresponding elements of @a v.
|
|
void operator/=(const valarray<_Tp>&) const;
|
|
/// Modulo slice elements by corresponding elements of @a v.
|
|
void operator%=(const valarray<_Tp>&) const;
|
|
/// Add corresponding elements of @a v to slice elements.
|
|
void operator+=(const valarray<_Tp>&) const;
|
|
/// Subtract corresponding elements of @a v from slice elements.
|
|
void operator-=(const valarray<_Tp>&) const;
|
|
/// Logical xor slice elements with corresponding elements of @a v.
|
|
void operator^=(const valarray<_Tp>&) const;
|
|
/// Logical and slice elements with corresponding elements of @a v.
|
|
void operator&=(const valarray<_Tp>&) const;
|
|
/// Logical or slice elements with corresponding elements of @a v.
|
|
void operator|=(const valarray<_Tp>&) const;
|
|
/// Left shift slice elements by corresponding elements of @a v.
|
|
void operator<<=(const valarray<_Tp>&) const;
|
|
/// Right shift slice elements by corresponding elements of @a v.
|
|
void operator>>=(const valarray<_Tp>&) const;
|
|
/// Assign all slice elements to @a t.
|
|
void operator=(const _Tp&) const;
|
|
|
|
template<class _Dom>
|
|
void operator=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator*=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator/=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator%=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator+=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator-=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator^=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator&=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator|=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator<<=(const _Expr<_Dom, _Tp>&) const;
|
|
template<class _Dom>
|
|
void operator>>=(const _Expr<_Dom, _Tp>&) const;
|
|
|
|
private:
|
|
_Array<_Tp> _M_array;
|
|
const valarray<size_t>& _M_index;
|
|
|
|
friend class valarray<_Tp>;
|
|
|
|
gslice_array(_Array<_Tp>, const valarray<size_t>&);
|
|
|
|
#if __cplusplus < 201103L
|
|
// not implemented
|
|
gslice_array();
|
|
#else
|
|
public:
|
|
gslice_array() = delete;
|
|
#endif
|
|
};
|
|
|
|
template<typename _Tp>
|
|
inline
|
|
gslice_array<_Tp>::gslice_array(_Array<_Tp> __a,
|
|
const valarray<size_t>& __i)
|
|
: _M_array(__a), _M_index(__i) {}
|
|
|
|
template<typename _Tp>
|
|
inline
|
|
gslice_array<_Tp>::gslice_array(const gslice_array<_Tp>& __a)
|
|
: _M_array(__a._M_array), _M_index(__a._M_index) {}
|
|
|
|
template<typename _Tp>
|
|
inline gslice_array<_Tp>&
|
|
gslice_array<_Tp>::operator=(const gslice_array<_Tp>& __a)
|
|
{
|
|
std::__valarray_copy(_Array<_Tp>(__a._M_array),
|
|
_Array<size_t>(__a._M_index), _M_index.size(),
|
|
_M_array, _Array<size_t>(_M_index));
|
|
return *this;
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline void
|
|
gslice_array<_Tp>::operator=(const _Tp& __t) const
|
|
{
|
|
std::__valarray_fill(_M_array, _Array<size_t>(_M_index),
|
|
_M_index.size(), __t);
|
|
}
|
|
|
|
template<typename _Tp>
|
|
inline void
|
|
gslice_array<_Tp>::operator=(const valarray<_Tp>& __v) const
|
|
{
|
|
std::__valarray_copy(_Array<_Tp>(__v), __v.size(),
|
|
_M_array, _Array<size_t>(_M_index));
|
|
}
|
|
|
|
template<typename _Tp>
|
|
template<class _Dom>
|
|
inline void
|
|
gslice_array<_Tp>::operator=(const _Expr<_Dom, _Tp>& __e) const
|
|
{
|
|
std::__valarray_copy (__e, _M_index.size(), _M_array,
|
|
_Array<size_t>(_M_index));
|
|
}
|
|
|
|
#undef _DEFINE_VALARRAY_OPERATOR
|
|
#define _DEFINE_VALARRAY_OPERATOR(_Op, _Name) \
|
|
template<typename _Tp> \
|
|
inline void \
|
|
gslice_array<_Tp>::operator _Op##=(const valarray<_Tp>& __v) const \
|
|
{ \
|
|
_Array_augmented_##_Name(_M_array, _Array<size_t>(_M_index), \
|
|
_Array<_Tp>(__v), __v.size()); \
|
|
} \
|
|
\
|
|
template<typename _Tp> \
|
|
template<class _Dom> \
|
|
inline void \
|
|
gslice_array<_Tp>::operator _Op##= (const _Expr<_Dom, _Tp>& __e) const\
|
|
{ \
|
|
_Array_augmented_##_Name(_M_array, _Array<size_t>(_M_index), __e,\
|
|
_M_index.size()); \
|
|
}
|
|
|
|
_DEFINE_VALARRAY_OPERATOR(*, __multiplies)
|
|
_DEFINE_VALARRAY_OPERATOR(/, __divides)
|
|
_DEFINE_VALARRAY_OPERATOR(%, __modulus)
|
|
_DEFINE_VALARRAY_OPERATOR(+, __plus)
|
|
_DEFINE_VALARRAY_OPERATOR(-, __minus)
|
|
_DEFINE_VALARRAY_OPERATOR(^, __bitwise_xor)
|
|
_DEFINE_VALARRAY_OPERATOR(&, __bitwise_and)
|
|
_DEFINE_VALARRAY_OPERATOR(|, __bitwise_or)
|
|
_DEFINE_VALARRAY_OPERATOR(<<, __shift_left)
|
|
_DEFINE_VALARRAY_OPERATOR(>>, __shift_right)
|
|
|
|
#undef _DEFINE_VALARRAY_OPERATOR
|
|
|
|
// @} group numeric_arrays
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
} // namespace
|
|
|
|
#endif /* _GSLICE_ARRAY_H */
|