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[simd.complex.access] Move into [simd.class] #8317

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Oct 5, 2025
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[simd.complex.access] Move into [simd.class] #8317

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122 changes: 61 additions & 61 deletions source/numerics.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -17614,6 +17614,14 @@
template<@\exposconcept{simd-integral}@ I>
constexpr resize_t<I::size(), basic_vec> operator[](const I& indices) const;

// \ref{simd.complex.access}, \tcode{basic_vec} complex accessors
constexpr auto real() const noexcept;
constexpr auto imag() const noexcept;
template<@\exposconcept{simd-floating-point}@ V>
constexpr void real(const V& v) noexcept;
template<@\exposconcept{simd-floating-point}@ V>
constexpr void imag(const V& v) noexcept;

// \ref{simd.unary}, \tcode{basic_vec} unary operators
constexpr basic_vec& operator++() noexcept;
constexpr basic_vec operator++(int) noexcept;
Expand Down Expand Up @@ -17660,14 +17668,6 @@
friend constexpr mask_type operator>(const basic_vec&, const basic_vec&) noexcept;
friend constexpr mask_type operator<(const basic_vec&, const basic_vec&) noexcept;

// \ref{simd.complex.access}, \tcode{basic_vec} complex-value accessors
constexpr auto real() const noexcept;
constexpr auto imag() const noexcept;
template<@\exposconcept{simd-floating-point}@ V>
constexpr void real(const V& v) noexcept;
template<@\exposconcept{simd-floating-point}@ V>
constexpr void imag(const V& v) noexcept;

// \ref{simd.cond}, \tcode{basic_vec} exposition only conditional operators
friend constexpr basic_vec @\exposid{simd-select-impl}@( // \expos
const mask_type&, const basic_vec&, const basic_vec&) noexcept;
Expand Down Expand Up @@ -17951,6 +17951,59 @@
Equivalent to: \tcode{return permute(*this, indices);}
\end{itemdescr}

\rSec3[simd.complex.access]{\tcode{basic_vec} complex accessors}

\indexlibrarymember{real}{basic_vec}
\indexlibrarymember{imag}{basic_vec}
\begin{itemdecl}
constexpr auto real() const noexcept;
constexpr auto imag() const noexcept;
\end{itemdecl}

\begin{itemdescr}
\pnum
\constraints
\tcode{\exposconcept{simd-complex}<basic_vec>} is modeled.

\pnum
\returns
An object of type \tcode{rebind_t<typename T::value_type, basic_vec>}
where the $i^\text{th}$ element is initialized to the result of
\tcode{\placeholder{cmplx-func}(operator[]($i$))} for all $i$ in the range
\range{0}{size()}, where \placeholder{cmplx-func} is the corresponding function
from \libheader{complex}.
\end{itemdescr}

\indexlibrarymember{real}{basic_vec}
\indexlibrarymember{imag}{basic_vec}
\begin{itemdecl}
template<@\exposconcept{simd-floating-point}@ V>
constexpr void real(const V& v) noexcept;
template<@\exposconcept{simd-floating-point}@ V>
constexpr void imag(const V& v) noexcept;
\end{itemdecl}

\begin{itemdescr}
\pnum
\constraints
\begin{itemize}
\item
\tcode{\exposconcept{simd-complex}<basic_vec>} is modeled,
\item
\tcode{\libconcept{same_as}<typename V::value_type, typename T::value_type>}
is modeled, and
\item
\tcode{V::size() == size()} is \tcode{true}.
\end{itemize}

\pnum
\effects
Replaces each element of the \tcode{basic_vec} object such that the
$i^\text{th}$ element is replaced with \tcode{value_type(v[$i$],
operator[]($i$).imag())} or \tcode{value_type(operator[]($i$).real(), v[$i$])}
for \tcode{real} and \tcode{imag} respectively, for all $i$ in the range \range{0}{size()}.
\end{itemdescr}

\rSec3[simd.unary]{\tcode{basic_vec} unary operators}

\pnum
Expand Down Expand Up @@ -18259,59 +18312,6 @@
operation.
\end{itemdescr}

\rSec3[simd.complex.access]{\tcode{vec} complex accessors}

\indexlibrarymember{real}{basic_vec}
\indexlibrarymember{imag}{basic_vec}
\begin{itemdecl}
constexpr auto real() const noexcept;
constexpr auto imag() const noexcept;
\end{itemdecl}

\begin{itemdescr}
\pnum
\constraints
\tcode{\exposconcept{simd-complex}<basic_vec>} is modeled.

\pnum
\returns
An object of type \tcode{rebind_t<typename T::value_type, basic_vec>}
where the $i^\text{th}$ element is initialized to the result of
\tcode{\placeholder{cmplx-func}(operator[]($i$))} for all $i$ in the range
\range{0}{size()}, where \placeholder{cmplx-func} is the corresponding function
from \libheader{complex}.
\end{itemdescr}

\indexlibrarymember{real}{basic_vec}
\indexlibrarymember{imag}{basic_vec}
\begin{itemdecl}
template<@\exposconcept{simd-floating-point}@ V>
constexpr void real(const V& v) noexcept;
template<@\exposconcept{simd-floating-point}@ V>
constexpr void imag(const V& v) noexcept;
\end{itemdecl}

\begin{itemdescr}
\pnum
\constraints
\begin{itemize}
\item
\tcode{\exposconcept{simd-complex}<basic_vec>} is modeled,
\item
\tcode{\libconcept{same_as}<typename V::value_type, typename T::value_type>}
is modeled, and
\item
\tcode{V::size() == size()} is \tcode{true}.
\end{itemize}

\pnum
\effects
Replaces each element of the \tcode{basic_vec} object such that the
$i^\text{th}$ element is replaced with \tcode{value_type(v[$i$],
operator[]($i$).imag())} or \tcode{value_type(operator[]($i$).real(), v[$i$])}
for \tcode{real} and \tcode{imag} respectively, for all $i$ in the range \range{0}{size()}.
\end{itemdescr}

\rSec3[simd.cond]{\tcode{basic_vec} exposition only conditional operators}

\begin{itemdecl}
Expand Down