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LWG Poll 15: P1956R1 On the names of low-level bit manipulation functions #3780

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Merged
merged 1 commit into from
Mar 3, 2020
Merged

LWG Poll 15: P1956R1 On the names of low-level bit manipulation functions #3780

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26 changes: 13 additions & 13 deletions source/numerics.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -1286,13 +1286,13 @@

// \ref{bit.pow.two}, integral powers of 2
template<class T>
constexpr bool ispow2(T x) noexcept;
constexpr bool has_single_bit(T x) noexcept;
template<class T>
constexpr T ceil2(T x);
constexpr T bit_ceil(T x);
template<class T>
constexpr T floor2(T x) noexcept;
constexpr T bit_floor(T x) noexcept;
template<class T>
constexpr T log2p1(T x) noexcept;
constexpr T bit_width(T x) noexcept;

// \ref{bit.rotate}, rotating
template<class T>
Expand Down Expand Up @@ -1366,10 +1366,10 @@

\rSec2[bit.pow.two]{Integral powers of 2}

\indexlibraryglobal{ispow2}%
\indexlibraryglobal{has_single_bit}%
\begin{itemdecl}
template<class T>
constexpr bool ispow2(T x) noexcept;
constexpr bool has_single_bit(T x) noexcept;
\end{itemdecl}

\begin{itemdescr}
Expand All @@ -1384,10 +1384,10 @@

\end{itemdescr}

\indexlibraryglobal{ceil2}%
\indexlibraryglobal{bit_ceil}%
\begin{itemdecl}
template<class T>
constexpr T ceil2(T x);
constexpr T bit_ceil(T x);
\end{itemdecl}

\begin{itemdescr}
Expand Down Expand Up @@ -1417,10 +1417,10 @@
is not a core constant expression\iref{expr.const}.
\end{itemdescr}

\indexlibraryglobal{floor2}%
\indexlibraryglobal{bit_floor}%
\begin{itemdecl}
template<class T>
constexpr T floor2(T x) noexcept;
constexpr T bit_floor(T x) noexcept;
\end{itemdecl}

\begin{itemdescr}
Expand All @@ -1432,14 +1432,14 @@
\returns
If \tcode{x == 0}, \tcode{0};
otherwise the maximal value \tcode{y}
such that \tcode{ispow2(y)} is \tcode{true} and \tcode{y <= x}.
such that \tcode{has_single_bit(y)} is \tcode{true} and \tcode{y <= x}.

\end{itemdescr}

\indexlibraryglobal{log2p1}%
\indexlibraryglobal{bit_width}%
\begin{itemdecl}
template<class T>
constexpr T log2p1(T x) noexcept;
constexpr T bit_width(T x) noexcept;
\end{itemdecl}

\begin{itemdescr}
Expand Down
2 changes: 1 addition & 1 deletion source/support.tex
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Original file line number Diff line number Diff line change
Expand Up @@ -617,7 +617,7 @@
#define @\defnlibxname{cpp_lib_hypot}@ 201603L // also in \libheader{cmath}
#define @\defnlibxname{cpp_lib_incomplete_container_elements}@ 201505L
// also in \libheader{forward_list}, \libheader{list}, \libheader{vector}
#define @\defnlibxname{cpp_lib_int_pow2}@ 201806L // also in \libheader{bit}
#define @\defnlibxname{cpp_lib_int_pow2}@ 202002L // also in \libheader{bit}
#define @\defnlibxname{cpp_lib_integer_sequence}@ 201304L // also in \libheader{utility}
#define @\defnlibxname{cpp_lib_integral_constant_callable}@ 201304L // also in \libheader{type_traits}
#define @\defnlibxname{cpp_lib_interpolate}@ 201902L // also in \libheader{cmath}, \libheader{numeric}
Expand Down