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[support.types.layout], [diff.offsetof] Use \placeholder #1058

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Merged
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Nov 17, 2016
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[support.types.layout], [diff.offsetof] Use \placeholder #1058

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4 changes: 2 additions & 2 deletions source/compatibility.tex
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Expand Up @@ -1916,13 +1916,13 @@

Subclause \ref{csetjmp.syn} describes the changes.

\rSec3[diff.offsetof]{Macro \tcode{offsetof(type, member-designator)}}
\rSec3[diff.offsetof]{Macro \tcode{offsetof(\placeholder{type}, \placeholder{member-designator})}}
\indexlibrary{\idxcode{offsetof}}%

\pnum
The macro \tcode{offsetof}, defined in
\tcode{<cstddef>}~(\ref{cstddef.syn})\indexlibrary{\idxhdr{cstddef}},
accepts a restricted set of \tcode{type} arguments in this International Standard.
accepts a restricted set of \placeholder{type} arguments in this International Standard.
Subclause \ref{support.types.layout} describes the change.

\rSec3[diff.malloc]{Memory allocation functions}
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14 changes: 7 additions & 7 deletions source/support.tex
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Expand Up @@ -256,25 +256,25 @@
\pnum
The macro
\indexlibrary{\idxcode{offsetof}}%
\tcode{offsetof}(\textit{type},
\grammarterm{member-designator})
\tcode{offsetof}(\placeholder{type},
\placeholder{member-designator})
has the same semantics as the corresponding macro in
the C standard library header \tcode{<stddef.h>}, but
accepts a restricted set of \textit{type}
accepts a restricted set of \placeholder{type}
arguments in this International Standard.
Use of the \tcode{offsetof} macro with a \textit{type}
Use of the \tcode{offsetof} macro with a \placeholder{type}
other than a standard-layout class (Clause~\ref{class})
is conditionally-supported.\footnote{Note that \tcode{offsetof}
is required to work as specified even if unary
\tcode{operator\&}
is overloaded for any of the types involved.}
The expression \tcode{offsetof}(\textit{type}, \grammarterm{member-designator})
The expression \tcode{offsetof}(\placeholder{type}, \placeholder{member-designator})
is never type-dependent~(\ref{temp.dep.expr}) and it is
value-dependent~(\ref{temp.dep.constexpr}) if and only if \textit{type} is
value-dependent~(\ref{temp.dep.constexpr}) if and only if \placeholder{type} is
dependent. The result of applying the \tcode{offsetof} macro to
a static data member or a function member is undefined.
No operation invoked by the \tcode{offsetof} macro shall throw an exception and
\tcode{noexcept(offsetof(type, member-designator))} shall be \tcode{true}.
\tcode{noexcept(offsetof(\placeholder{type}, \placeholder{member-designator}))} shall be \tcode{true}.

\pnum
The type \tcode{ptrdiff_t} is an
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