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P3044R2 sub-string_view from string #7975

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P3044R2 sub-string_view from string #7975

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17 changes: 17 additions & 0 deletions source/strings.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -678,6 +678,8 @@

constexpr basic_string_view substr(size_type pos = 0,
size_type n = npos) const; // freestanding-deleted
constexpr basic_string_view subview(size_type pos = 0,
size_type n = npos) const; // freestanding-deleted

constexpr int compare(basic_string_view s) const noexcept;
constexpr int compare(size_type pos1, size_type n1,
Expand Down Expand Up @@ -1200,8 +1202,10 @@
\end{itemdescr}

\indexlibrarymember{substr}{basic_string_view}%
\indexlibrarymember{subview}{basic_string_view}%
\begin{itemdecl}
constexpr basic_string_view substr(size_type pos = 0, size_type n = npos) const;
constexpr basic_string_view subview(size_type pos = 0, size_type n = npos) const;
\end{itemdecl}

\begin{itemdescr}
Expand Down Expand Up @@ -2285,6 +2289,8 @@

constexpr basic_string substr(size_type pos = 0, size_type n = npos) const &;
constexpr basic_string substr(size_type pos = 0, size_type n = npos) &&;
constexpr basic_string_view<charT, traits> subview(size_type pos = 0,
size_type n = npos) const;

template<class T>
constexpr int compare(const T& t) const noexcept(@\seebelow@);
Expand Down Expand Up @@ -4470,6 +4476,17 @@
Equivalent to: \tcode{return basic_string(std::move(*this), pos, n);}
\end{itemdescr}

\indexlibrarymember{subview}{basic_string}%
\begin{itemdecl}
constexpr basic_string_view<charT, traits> subview(size_type pos = 0, size_type n = npos) const;
\end{itemdecl}

\begin{itemdescr}
\pnum
\effects
Equivalent to: \tcode{return basic_string_view<charT, traits>(*this).subview(pos, n);}
\end{itemdescr}

\rSec4[string.compare]{\tcode{basic_string::compare}}

\indexlibrarymember{compare}{basic_string}%
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1 change: 1 addition & 0 deletions source/support.tex
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Expand Up @@ -821,6 +821,7 @@
#define @\defnlibxname{cpp_lib_stdatomic_h}@ 202011L // also in \libheader{stdatomic.h}
#define @\defnlibxname{cpp_lib_string_contains}@ 202011L // also in \libheader{string}, \libheader{string_view}
#define @\defnlibxname{cpp_lib_string_resize_and_overwrite}@ 202110L // also in \libheader{string}
#define @\defnlibxname{cpp_lib_string_subview}@ 202506L // also in \libheader{string}, \libheader{string_view}
#define @\defnlibxname{cpp_lib_string_udls}@ 201304L // also in \libheader{string}
#define @\defnlibxname{cpp_lib_string_view}@ 202403L // also in \libheader{string}, \libheader{string_view}
#define @\defnlibxname{cpp_lib_submdspan}@ 202411L // freestanding, also in \libheader{mdspan}
Expand Down