algo/for_each: Fixed parameter type

to be able to call mutable object
This commit is contained in:
Kohei Takahashi
2018-07-02 22:19:25 +09:00
parent afb8b150a9
commit 0e4c5127f5
6 changed files with 140 additions and 41 deletions

View File

@ -1,13 +1,15 @@
/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2018 Kohei Takahashi
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/detail/lightweight_test.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/fusion/container/vector/vector.hpp>
#include <boost/fusion/adapted/mpl.hpp>
#include <boost/fusion/sequence/io/out.hpp>
#include <boost/fusion/sequence/comparison/equal_to.hpp>
#include <boost/fusion/algorithm/iteration/for_each.hpp>
#include <boost/mpl/vector_c.hpp>
@ -29,6 +31,15 @@ struct increment
}
};
struct mutable_increment : increment
{
template <typename T>
void operator()(T& v)
{
return increment::operator()(v);
}
};
int
main()
{
@ -44,9 +55,20 @@ main()
}
{
char const ruby[] = "Ruby";
typedef vector<int, char, double, char const*> vector_type;
vector_type v(1, 'x', 3.3, "Ruby");
vector_type v(1, 'x', 3.3, ruby);
for_each(v, increment());
BOOST_TEST_EQ(v, vector_type(2, 'y', 4.3, ruby + 1));
std::cout << v << std::endl;
}
{
char const ruby[] = "Ruby";
typedef vector<int, char, double, char const*> vector_type;
vector_type v(1, 'x', 3.3, ruby);
for_each(v, mutable_increment());
BOOST_TEST_EQ(v, vector_type(2, 'y', 4.3, ruby + 1));
std::cout << v << std::endl;
}

View File

@ -1,14 +1,17 @@
/*=============================================================================
Copyright (c) 2001-2011 Joel de Guzman
Copyright (c) 2011 Eric Niebler
Copyright (c) 2018 Kohei Takahashi
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/detail/lightweight_test.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/fusion/container/vector/vector.hpp>
#include <boost/fusion/algorithm/iteration/for_each.hpp>
#include <boost/fusion/container/generation/make_vector.hpp>
#include <boost/fusion/algorithm/iteration/for_each.hpp>
#include <boost/fusion/sequence/comparison/equal_to.hpp>
#include <boost/fusion/sequence/io/out.hpp>
#include "../sequence/tree.hpp"
struct print
@ -20,6 +23,31 @@ struct print
}
};
struct increment
{
template <typename T>
void operator()(T& v) const
{
++v;
}
};
struct mutable_increment : increment
{
template <typename T>
void operator()(T& v)
{
return increment::operator()(v);
}
};
template <typename F, typename Tree>
void test(Tree tree, Tree const& expected)
{
boost::fusion::for_each(tree, F());
BOOST_TEST_EQ(tree, expected);
}
int
main()
{
@ -42,6 +70,69 @@ main()
)
, print()
);
std::cout << std::endl;
}
{
test<increment>(
make_tree(
make_vector(double(0),'B')
, make_tree(
make_vector(1,2,long(3))
, make_tree(make_vector('a','b','c'))
, make_tree(make_vector(short('d'),'e','f'))
)
, make_tree(
make_vector(4,5,6)
, make_tree(make_vector(float(1),'h','i'))
, make_tree(make_vector('j','k','l'))
)
)
, make_tree(
make_vector(double(1),'C')
, make_tree(
make_vector(2,3,long(4))
, make_tree(make_vector('b','c','d'))
, make_tree(make_vector(short('e'),'f','g'))
)
, make_tree(
make_vector(5,6,7)
, make_tree(make_vector(float(2),'i','j'))
, make_tree(make_vector('k','l','m'))
)
)
);
}
{
test<mutable_increment>(
make_tree(
make_vector(double(0),'B')
, make_tree(
make_vector(1,2,long(3))
, make_tree(make_vector('a','b','c'))
, make_tree(make_vector(short('d'),'e','f'))
)
, make_tree(
make_vector(4,5,6)
, make_tree(make_vector(float(1),'h','i'))
, make_tree(make_vector('j','k','l'))
)
)
, make_tree(
make_vector(double(1),'C')
, make_tree(
make_vector(2,3,long(4))
, make_tree(make_vector('b','c','d'))
, make_tree(make_vector(short('e'),'f','g'))
)
, make_tree(
make_vector(5,6,7)
, make_tree(make_vector(float(2),'i','j'))
, make_tree(make_vector('k','l','m'))
)
)
);
}
return boost::report_errors();