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Document mp_plus

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Peter Dimov
2017-05-24 01:52:11 +03:00
parent 6b1a2f6156
commit 3e40aacce5
5 changed files with 57 additions and 1 deletions
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17
doc/html/mp11.html
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@ -172,6 +172,7 @@
<dt><span class="section"><a href="mp11.html#mp11.reference.function.mp_or_t"><code class="computeroutput"><span class="identifier">mp_or</span><span class="special">&lt;</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.function.mp_any_t"><code class="computeroutput"><span class="identifier">mp_any</span><span class="special">&lt;</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.function.mp_same_t"><code class="computeroutput"><span class="identifier">mp_same</span><span class="special">&lt;</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.function.mp_plus_t"><code class="computeroutput"><span class="identifier">mp_plus</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">...&gt;</span></code></a></span></dt>
</dl></dd>
<dt><span class="section"><a href="mp11.html#mp11.reference.bind">Bind, <code class="computeroutput"><span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">mp11</span><span class="special">/</span><span class="identifier">bind</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code></a></span></dt>
<dd><dl>
@ -2272,6 +2273,20 @@
is <code class="computeroutput"><span class="identifier">mp_true</span></code>.
</p>
</div>
<div class="section">
<div class="titlepage"><div><div><h4 class="title">
<a name="mp11.reference.function.mp_plus_t"></a><a class="link" href="mp11.html#mp11.reference.function.mp_plus_t" title="mp_plus&lt;T...&gt;"><code class="computeroutput"><span class="identifier">mp_plus</span><span class="special">&lt;</span><span class="identifier">T</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">T</span><span class="special">&gt;</span> <span class="keyword">using</span> <span class="identifier">mp_plus</span> <span class="special">=</span> <span class="comment">/*...*/</span><span class="special">;</span>
</pre>
<p>
<code class="computeroutput"><span class="identifier">mp_plus</span><span class="special">&lt;</span><span class="identifier">T</span><span class="special">...&gt;</span></code>
is an integral constant type with a value that is the sum of <code class="computeroutput"><span class="identifier">U</span><span class="special">::</span><span class="identifier">value</span></code>
for all types <code class="computeroutput"><span class="identifier">U</span></code> in <code class="computeroutput"><span class="identifier">T</span><span class="special">...</span></code>.
<code class="computeroutput"><span class="identifier">mp_plus</span><span class="special">&lt;&gt;</span></code>
is <code class="computeroutput"><span class="identifier">mp_int</span><span class="special">&lt;</span><span class="number">0</span><span class="special">&gt;</span></code>.
</p>
</div>
</div>
<div class="section">
<div class="titlepage"><div><div><h3 class="title">
@ -2478,7 +2493,7 @@
</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 23, 2017 at 22:20:27 GMT</small></p></td>
<td align="left"><p><small>Last revised: May 23, 2017 at 22:51:13 GMT</small></p></td>
<td align="right"><div class="copyright-footer"></div></td>
</tr></table>
<hr>

7
doc/mp11/function.qbk
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@ -70,4 +70,11 @@ returns `mp_true`. If all results are `mp_false`, returns `mp_false`. `mp_or<>`
`mp_same<T...>` is `mp_true` if all the types in `T...` are the same type, `mp_false` otherwise. `mp_same<>` is `mp_true`.
[endsect]
[section `mp_plus<T...>`]
template<class... T> using mp_plus = /*...*/;
`mp_plus<T...>` is an integral constant type with a value that is the sum of `U::value` for all types `U` in `T...`.
`mp_plus<>` is `mp_int<0>`.
[endsect]
[endsect:function]

1
include/boost/mp11/function.hpp
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@ -12,6 +12,7 @@
#include <boost/mp11/utility.hpp>
#include <boost/mp11/detail/mp_list.hpp>
#include <boost/mp11/detail/mp_count.hpp>
#include <boost/mp11/detail/mp_plus.hpp>
#include <type_traits>
namespace boost

1
test/Jamfile.v2
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@ -103,6 +103,7 @@ run mp_and.cpp : : : $(REQ) ;
run mp_any.cpp : : : $(REQ) ;
run mp_or.cpp : : : $(REQ) ;
run mp_same.cpp : : : $(REQ) ;
run mp_plus.cpp : : : $(REQ) ;
# map
run mp_map_find.cpp : : : $(REQ) ;

32
test/mp_plus.cpp Normal file
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@ -0,0 +1,32 @@
// 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/mp11/function.hpp>
#include <boost/core/lightweight_test_trait.hpp>
#include <type_traits>
template<class T, T N> using integral = std::integral_constant<T, N>;
int main()
{
using boost::mp11::mp_plus;
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<>, integral<int, 0>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<integral<char, 1>>, integral<int, 1>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<integral<short, 2>>, integral<int, 2>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<integral<int, 3>>, integral<int, 3>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<integral<unsigned, 4>>, integral<unsigned, 4>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<integral<char, 1>, integral<char, 2>>, integral<int, 3>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<integral<short, 1>, integral<short, 2>, integral<short, 3>>, integral<int, 6>>));
BOOST_TEST_TRAIT_TRUE((std::is_same<mp_plus<integral<int, 1>, integral<int, 2>, integral<int, 3>, integral<long, 4>>, integral<long, 10>>));
return boost::report_errors();
}