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[2026-03 LWG Motion 34] P3856R8 New reflection metafunction - is_structural_type (US NB comment 49) #8908

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[2026-03 LWG Motion 34] P3856R8 New reflection metafunction - is_structural_type (US NB comment 49) #8908

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11 changes: 11 additions & 0 deletions source/meta.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -259,6 +259,7 @@
template<class T> struct is_aggregate;
template<class T> struct is_consteval_only;

template<class T> struct is_structural;
template<class T> struct is_signed;
template<class T> struct is_unsigned;
template<class T> struct is_bounded_array;
Expand Down Expand Up @@ -512,6 +513,8 @@
constexpr bool @\libglobal{is_aggregate_v}@ = is_aggregate<T>::value;
template<class T>
constexpr bool @\libglobal{is_consteval_only_v}@ = is_consteval_only<T>::value;
template<class T>
constexpr bool @\libglobal{is_structural_v}@ = is_structural<T>::value;
template<class T>
constexpr bool @\libglobal{is_signed_v}@ = is_signed<T>::value;
template<class T>
Expand Down Expand Up @@ -1203,6 +1206,12 @@
\tcode{T} is consteval-only\iref{basic.types.general} &
\tcode{remove_all_extents_t<T>} shall be a complete type or \cv~\keyword{void}. \\ \rowsep

\indexlibraryglobal{is_structural}%
\tcode{template<class T>}\br
\tcode{struct is_structural;} &
\tcode{T} is a structural type\iref{temp.param} &
\tcode{remove_all_extents_t<T>} shall be a complete type or \cv~\keyword{void}. \\ \rowsep

\indexlibrary{\idxcode{is_signed}!class}%
\tcode{template<class T>}\br
\tcode{struct is_signed;} &
Expand Down Expand Up @@ -3152,6 +3161,7 @@
consteval bool is_final_type(info type);
consteval bool is_aggregate_type(info type);
consteval bool is_consteval_only_type(info type);
consteval bool is_structural_type(info type);
consteval bool is_signed_type(info type);
consteval bool is_unsigned_type(info type);
consteval bool is_bounded_array_type(info type);
Expand Down Expand Up @@ -6802,6 +6812,7 @@
consteval bool @\libglobal{is_final_type}@(info type);
consteval bool @\libglobal{is_aggregate_type}@(info type);
consteval bool @\libglobal{is_consteval_only_type}@(info type);
consteval bool @\libglobal{is_structural_type}@(info type);
consteval bool @\libglobal{is_signed_type}@(info type);
consteval bool @\libglobal{is_unsigned_type}@(info type);
consteval bool @\libglobal{is_bounded_array_type}@(info type);
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2 changes: 2 additions & 0 deletions source/support.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -746,6 +746,8 @@
#define @\defnlibxname{cpp_lib_is_null_pointer}@ 201309L // freestanding, also in \libheader{type_traits}
#define @\defnlibxname{cpp_lib_is_pointer_interconvertible}@ 201907L // freestanding, also in \libheader{type_traits}
#define @\defnlibxname{cpp_lib_is_scoped_enum}@ 202011L // freestanding, also in \libheader{type_traits}
#define @\defnlibxname{cpp_lib_is_structural}@ 202603L
// freestanding, also in \libheader{meta} and \libheader{type_traits}
#define @\defnlibxname{cpp_lib_is_sufficiently_aligned}@ 202411L // freestanding, also in \libheader{memory}
#define @\defnlibxname{cpp_lib_is_swappable}@ 201603L // freestanding, also in \libheader{type_traits}
#define @\defnlibxname{cpp_lib_is_virtual_base_of}@ 202406L // freestanding, also in \libheader{type_traits}
Expand Down
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