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Add mp_apply_q

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This commit is contained in:
Peter Dimov
2017-05-12 19:21:27 +03:00
parent 4500b673f2
commit 543a0f755e
5 changed files with 139 additions and 3 deletions
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18
doc/html/mp11.html
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@@ -70,6 +70,8 @@
<span class="identifier">Y</span><span class="special">&gt;</span></code></a></span></dt>
<dt><span class="section"><a href="mp11.html#mp11.reference.list.mp_apply_f_l"><code class="computeroutput"><span class="identifier">mp_apply</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">,</span>
<span class="identifier">L</span><span class="special">&gt;</span></code></a></span></dt>
<dt><span class="section"><a href="mp11.html#mp11.reference.list.mp_apply_q_q_l"><code class="computeroutput"><span class="identifier">mp_apply_q</span><span class="special">&lt;</span><span class="identifier">Q</span><span class="special">,</span>
<span class="identifier">L</span><span class="special">&gt;</span></code></a></span></dt>
<dt><span class="section"><a href="mp11.html#mp11.reference.list.mp_append_l"><code class="computeroutput"><span class="identifier">mp_append</span><span class="special">&lt;</span><span class="identifier">L</span><span class="special">...&gt;</span></code></a></span></dt>
<dt><span class="section"><a href="mp11.html#mp11.reference.list.mp_replace_front_l_t"><code class="computeroutput"><span class="identifier">mp_replace_front</span><span class="special">&lt;</span><span class="identifier">L</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;</span></code></a></span></dt>
<dt><span class="section"><a href="mp11.html#mp11.reference.list.mp_replace_first_l_t"><code class="computeroutput"><span class="identifier">mp_replace_first</span><span class="special">&lt;</span><span class="identifier">L</span><span class="special">,</span> <span class="identifier">T</span><span class="special">&gt;</span></code></a></span></dt>
@@ -734,7 +736,7 @@
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span><span class="special">...&gt;</span> <span class="keyword">class</span> <span class="identifier">F</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">L</span><span class="special">&gt;</span> <span class="keyword">using</span> <span class="identifier">mp_apply</span> <span class="special">=</span> <span class="identifier">mp_rename</span><span class="special">&lt;</span><span class="identifier">L</span><span class="special">,</span> <span class="identifier">F</span><span class="special">&gt;;</span>
</pre>
<p>
<code class="computeroutput"><span class="identifier">mp_apply</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">,</span> <span class="identifier">L</span><span class="special">&gt;</span></code> applies the metafunction <code class="computeroutput"><span class="identifier">F</span></code> to the contents of the list <code class="computeroutput"><span class="identifier">L</span></code>, that is, <code class="computeroutput"><span class="identifier">mp_rename</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">,</span> <span class="identifier">L</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">...&gt;&gt;</span></code>
<code class="computeroutput"><span class="identifier">mp_apply</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">,</span> <span class="identifier">L</span><span class="special">&gt;</span></code> applies the metafunction <code class="computeroutput"><span class="identifier">F</span></code> to the contents of the list <code class="computeroutput"><span class="identifier">L</span></code>, that is, <code class="computeroutput"><span class="identifier">mp_apply</span><span class="special">&lt;</span><span class="identifier">F</span><span class="special">,</span> <span class="identifier">L</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">...&gt;&gt;</span></code>
is an alias for <code class="computeroutput"><span class="identifier">F</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">...&gt;</span></code>.
(<code class="computeroutput"><span class="identifier">mp_apply</span></code> is the same as
<code class="computeroutput"><span class="identifier">mp_rename</span></code> with the arguments
@@ -743,6 +745,18 @@
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="mp11.reference.list.mp_apply_q_q_l"></a><a class="link" href="mp11.html#mp11.reference.list.mp_apply_q_q_l" title="mp_apply_q&lt;Q, L&gt;"><code class="computeroutput"><span class="identifier">mp_apply_q</span><span class="special">&lt;</span><span class="identifier">Q</span><span class="special">,</span>
<span class="identifier">L</span><span class="special">&gt;</span></code></a>
</h4></div></div></div>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">Q</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">L</span><span class="special">&gt;</span> <span class="keyword">using</span> <span class="identifier">mp_apply_q</span> <span class="special">=</span> <span class="identifier">mp_apply</span><span class="special">&lt;</span><span class="identifier">Q</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">fn</span><span class="special">,</span> <span class="identifier">L</span><span class="special">&gt;;</span>
</pre>
<p>
Same as <code class="computeroutput"><span class="identifier">mp_apply</span></code>, but takes
a quoted metafunction.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="mp11.reference.list.mp_append_l"></a><a class="link" href="mp11.html#mp11.reference.list.mp_append_l" title="mp_append&lt;L...&gt;"><code class="computeroutput"><span class="identifier">mp_append</span><span class="special">&lt;</span><span class="identifier">L</span><span class="special">...&gt;</span></code></a>
</h4></div></div></div>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span><span class="special">...</span> <span class="identifier">L</span><span class="special">&gt;</span> <span class="keyword">using</span> <span class="identifier">mp_append</span> <span class="special">=</span> <span class="comment">/*...*/</span><span class="special">;</span>
@@ -1854,7 +1868,7 @@
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"><p><small>Last revised: May 10, 2017 at 20:23:11 GMT</small></p></td>
<td align="left"><p><small>Last revised: May 12, 2017 at 16:19:34 GMT</small></p></td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>

8
doc/mp11/list.qbk
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@@ -88,10 +88,16 @@ is an alias for `L<U..., T...>`.
[section `mp_apply<F, L>`]
template<template<class...> class F, class L> using mp_apply = mp_rename<L, F>;
`mp_apply<F, L>` applies the metafunction `F` to the contents of the list `L`, that is, `mp_rename<F, L<T...>>` is an alias for `F<T...>`.
`mp_apply<F, L>` applies the metafunction `F` to the contents of the list `L`, that is, `mp_apply<F, L<T...>>` is an alias for `F<T...>`.
(`mp_apply` is the same as `mp_rename` with the arguments reversed.)
[endsect]
[section `mp_apply_q<Q, L>`]
template<class Q, class L> using mp_apply_q = mp_apply<Q::template fn, L>;
Same as `mp_apply`, but takes a quoted metafunction.
[endsect]
[section `mp_append<L...>`]
template<class... L> using mp_append = /*...*/;

2
include/boost/mp11/list.hpp
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@@ -150,6 +150,8 @@ template<class A, template<class...> class B> using mp_rename = typename detail:
template<template<class...> class F, class L> using mp_apply = typename detail::mp_rename_impl<L, F>::type;
template<class Q, class L> using mp_apply_q = typename detail::mp_rename_impl<L, Q::template fn>::type;
// mp_replace_front<L, T>
namespace detail
{

1
test/Jamfile.v2
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@@ -29,6 +29,7 @@ run mp_append_2.cpp : : : $(REQ) ;
run mp_replace_front.cpp : : : $(REQ) ;
run mp_replace_second.cpp : : : $(REQ) ;
run mp_replace_third.cpp : : : $(REQ) ;
run mp_apply_q.cpp : : : $(REQ) ;
# algorithm
run mp_assign.cpp : : : $(REQ) ;

113
test/mp_apply_q.cpp Normal file
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@@ -0,0 +1,113 @@
// Copyright 2015-2017 Peter Dimov.
//
// Distributed under the Boost Software License, Version 1.0.
//
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
#include <boost/core/lightweight_test_trait.hpp>
#include <boost/mp11/list.hpp>
#include <boost/mp11/utility.hpp>
#include <type_traits>
#include <tuple>
#include <utility>
template<class... T> struct X {};
template<class... T> using Y = X<T...>;
struct Q
{
template<class... T> using fn = X<T...>;
};
int main()
{
using boost::mp11::mp_list;
using boost::mp11::mp_quote;
using boost::mp11::mp_apply_q;
using L1 = mp_list<>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L1>, mp_list<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L1>, std::tuple<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L1>, X<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L1>, Y<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L1>, X<>>));
using L2 = mp_list<char>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L2>, mp_list<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L2>, std::tuple<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L2>, X<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L2>, Y<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L2>, X<char>>));
using L3 = mp_list<char, double>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L3>, mp_list<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L3>, std::tuple<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L3>, X<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L3>, Y<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::pair>, L3>, std::pair<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L3>, X<char, double>>));
using L4 = mp_list<int, char, float>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L4>, mp_list<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L4>, std::tuple<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L4>, X<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L4>, Y<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L4>, X<int, char, float>>));
//
using L5 = std::tuple<>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L5>, mp_list<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L5>, std::tuple<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L5>, X<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L5>, Y<>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L5>, X<>>));
using L6 = std::tuple<char>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L6>, mp_list<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L6>, std::tuple<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L6>, X<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L6>, Y<char>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L6>, X<char>>));
using L7 = std::tuple<char, double>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L7>, mp_list<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L7>, std::tuple<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L7>, X<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L7>, Y<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::pair>, L7>, std::pair<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L7>, X<char, double>>));
using L8 = std::tuple<int, char, float>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L8>, mp_list<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L8>, std::tuple<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L8>, X<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L8>, Y<int, char, float>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L8>, X<int, char, float>>));
//
using L9 = std::pair<char, double>;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<mp_list>, L9>, mp_list<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::tuple>, L9>, std::tuple<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<X>, L9>, X<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<Y>, L9>, Y<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<mp_quote<std::pair>, L9>, std::pair<char, double>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_apply_q<Q, L9>, X<char, double>>));
//
return boost::report_errors();
}