// The template and inlines for the -*- C++ -*- valarray class.
-// Copyright (C) 1997-2020 Free Software Foundation, Inc.
+// Copyright (C) 1997-2024 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
#pragma GCC system_header
+#include <bits/requires_hosted.h> // <cmath> dependant
+
#include <bits/c++config.h>
#include <cmath>
#include <algorithm>
template<class, class> class _Meta1,
template<class, class> class _Meta2,
class _Dom1, class _Dom2>
- class _BinClos;
+ struct _BinClos;
template<template<class, class> class _Meta, class _Dom>
- class _SClos;
+ struct _SClos;
template<template<class, class> class _Meta, class _Dom>
- class _GClos;
+ struct _GClos;
template<template<class, class> class _Meta, class _Dom>
- class _IClos;
+ struct _IClos;
template<template<class, class> class _Meta, class _Dom>
- class _ValFunClos;
+ struct _ValFunClos;
template<template<class, class> class _Meta, class _Dom>
- class _RefFunClos;
+ struct _RefFunClos;
} // namespace __detail
using __detail::_UnClos;
// _lib.valarray.cons_ construct/destroy:
/// Construct an empty array.
- valarray();
+ valarray() _GLIBCXX_NOTHROW;
/// Construct an array with @a n elements.
explicit valarray(size_t);
* @param __i Index of element to return.
* @return Reference to the i'th element.
*/
- _Tp& operator[](size_t __i);
+ _Tp& operator[](size_t __i) _GLIBCXX_NOTHROW;
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 389. Const overload of valarray::operator[] returns by value.
- const _Tp& operator[](size_t) const;
+ const _Tp& operator[](size_t) const _GLIBCXX_NOTHROW;
// _lib.valarray.sub_ subset operations:
/**
* @brief Apply a function to the array.
*
* Returns a new valarray with elements assigned to the result of
- * applying func to the corresponding element of this array. The new
+ * applying __func to the corresponding element of this array. The new
* array has the same size as this one.
*
- * @param func Function of Tp returning Tp to apply.
+ * @param __func Function of Tp returning Tp to apply.
* @return New valarray with transformed elements.
*/
- _Expr<_ValFunClos<_ValArray, _Tp>, _Tp> apply(_Tp func(_Tp)) const;
+ _Expr<_ValFunClos<_ValArray, _Tp>, _Tp> apply(_Tp __func(_Tp)) const;
/**
* @brief Apply a function to the array.
*
* Returns a new valarray with elements assigned to the result of
- * applying func to the corresponding element of this array. The new
+ * applying __func to the corresponding element of this array. The new
* array has the same size as this one.
*
- * @param func Function of const Tp& returning Tp to apply.
+ * @param __func Function of const Tp& returning Tp to apply.
* @return New valarray with transformed elements.
*/
- _Expr<_RefFunClos<_ValArray, _Tp>, _Tp> apply(_Tp func(const _Tp&)) const;
+ _Expr<_RefFunClos<_ValArray, _Tp>, _Tp> apply(_Tp __func(const _Tp&)) const;
/**
* @brief Resize array.
template<typename _Tp>
inline const _Tp&
- valarray<_Tp>::operator[](size_t __i) const
+ valarray<_Tp>::operator[](size_t __i) const _GLIBCXX_NOTHROW
{
__glibcxx_requires_subscript(__i);
return _M_data[__i];
template<typename _Tp>
inline _Tp&
- valarray<_Tp>::operator[](size_t __i)
+ valarray<_Tp>::operator[](size_t __i) _GLIBCXX_NOTHROW
{
__glibcxx_requires_subscript(__i);
return _M_data[__i];
}
- // @} group numeric_arrays
+ /// @} group numeric_arrays
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
template<typename _Tp>
inline
- valarray<_Tp>::valarray() : _M_size(0), _M_data(0) {}
+ valarray<_Tp>::valarray() _GLIBCXX_NOTHROW : _M_size(0), _M_data(0) {}
template<typename _Tp>
inline
size_t __e = __m.size();
for (size_t __i=0; __i<__e; ++__i)
if (__m[__i]) ++__s;
+ __glibcxx_assert(__s <= _M_size);
return valarray<_Tp>(mask_array<_Tp>(_Array<_Tp>(_M_data), __s,
_Array<bool> (__m)));
}
size_t __e = __m.size();
for (size_t __i=0; __i<__e; ++__i)
if (__m[__i]) ++__s;
+ __glibcxx_assert(__s <= _M_size);
return mask_array<_Tp>(_Array<_Tp>(_M_data), __s, _Array<bool>(__m));
}
template<class _Tp>
inline _Expr<_ValFunClos<_ValArray, _Tp>, _Tp>
- valarray<_Tp>::apply(_Tp func(_Tp)) const
+ valarray<_Tp>::apply(_Tp __func(_Tp)) const
{
typedef _ValFunClos<_ValArray, _Tp> _Closure;
- return _Expr<_Closure, _Tp>(_Closure(*this, func));
+ return _Expr<_Closure, _Tp>(_Closure(*this, __func));
}
template<class _Tp>
inline _Expr<_RefFunClos<_ValArray, _Tp>, _Tp>
- valarray<_Tp>::apply(_Tp func(const _Tp &)) const
+ valarray<_Tp>::apply(_Tp __func(const _Tp &)) const
{
typedef _RefFunClos<_ValArray, _Tp> _Closure;
- return _Expr<_Closure, _Tp>(_Closure(*this, func));
+ return _Expr<_Closure, _Tp>(_Closure(*this, __func));
}
+ /// @cond undocumented
#define _DEFINE_VALARRAY_UNARY_OPERATOR(_Op, _Name) \
template<typename _Tp> \
inline typename valarray<_Tp>::template _UnaryOp<_Name>::_Rt \
_DEFINE_BINARY_OPERATOR(>=, __greater_equal)
#undef _DEFINE_BINARY_OPERATOR
+ /// @endcond
#if __cplusplus >= 201103L
/**
* @param __va valarray.
*/
template<class _Tp>
+ [[__nodiscard__]]
inline _Tp*
- begin(valarray<_Tp>& __va)
- { return std::__addressof(__va[0]); }
+ begin(valarray<_Tp>& __va) noexcept
+ { return __va.size() ? std::__addressof(__va[0]) : nullptr; }
/**
* @brief Return an iterator pointing to the first element of
* @param __va valarray.
*/
template<class _Tp>
+ [[__nodiscard__]]
inline const _Tp*
- begin(const valarray<_Tp>& __va)
- { return std::__addressof(__va[0]); }
+ begin(const valarray<_Tp>& __va) noexcept
+ { return __va.size() ? std::__addressof(__va[0]) : nullptr; }
/**
* @brief Return an iterator pointing to one past the last element of
* @param __va valarray.
*/
template<class _Tp>
+ [[__nodiscard__]]
inline _Tp*
- end(valarray<_Tp>& __va)
- { return std::__addressof(__va[0]) + __va.size(); }
+ end(valarray<_Tp>& __va) noexcept
+ {
+ if (auto __n = __va.size())
+ return std::__addressof(__va[0]) + __n;
+ else
+ return nullptr;
+ }
/**
* @brief Return an iterator pointing to one past the last element of
* @param __va valarray.
*/
template<class _Tp>
+ [[__nodiscard__]]
inline const _Tp*
- end(const valarray<_Tp>& __va)
- { return std::__addressof(__va[0]) + __va.size(); }
+ end(const valarray<_Tp>& __va) noexcept
+ {
+ if (auto __n = __va.size())
+ return std::__addressof(__va[0]) + __n;
+ else
+ return nullptr;
+ }
#endif // C++11
- // @} group numeric_arrays
+ /// @} group numeric_arrays
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
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