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[LWG 10] P2821R5 span.at() #6692

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Merged
merged 2 commits into from
Dec 17, 2023
Merged

[LWG 10] P2821R5 span.at() #6692

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b672543
P2821R5 span.at()
burblebee Nov 15, 2023
c85d60c
P2833R2-Part2 Freestanding Library: inout expected span
burblebee Nov 17, 2023
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16 changes: 16 additions & 0 deletions source/containers.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -18321,6 +18321,7 @@

// \ref{span.elem}, element access
constexpr reference operator[](size_type idx) const;
constexpr reference at(size_type idx) const; // freestanding-deleted
constexpr reference front() const;
constexpr reference back() const;
constexpr pointer data() const noexcept;
Expand Down Expand Up @@ -18839,6 +18840,21 @@
Equivalent to: \tcode{return *(data() + idx);}
\end{itemdescr}

\indexlibrarymember{span}{at}%
\begin{itemdecl}
constexpr reference at(size_type idx) const;
\end{itemdecl}

\begin{itemdescr}
\pnum
\returns
\tcode{*(data() + idx)}.

\pnum
\throws
\tcode{out_of_range} if \tcode{idx >= size()} is \tcode{true}.
\end{itemdescr}

\indexlibrarymember{span}{front}%
\begin{itemdecl}
constexpr reference front() const;
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2 changes: 1 addition & 1 deletion source/support.tex
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Expand Up @@ -761,7 +761,7 @@
#define @\defnlibxname{cpp_lib_smart_ptr_for_overwrite}@ 202002L // also in \libheader{memory}
#define @\defnlibxname{cpp_lib_smart_ptr_owner_equality}@ 202306L // also in \libheader{memory}
#define @\defnlibxname{cpp_lib_source_location}@ 201907L // freestanding, also in \libheader{source_location}
#define @\defnlibxname{cpp_lib_span}@ 202002L // also in \libheader{span}
#define @\defnlibxname{cpp_lib_span}@ 202311L // also in \libheader{span}
#define @\defnlibxname{cpp_lib_span_initializer_list}@ 202311L // also in \libheader{span}
#define @\defnlibxname{cpp_lib_spanstream}@ 202106L // also in \libheader{spanstream}
#define @\defnlibxname{cpp_lib_ssize}@ 201902L // freestanding, also in \libheader{iterator}
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