Merge branch 'develop'

This commit is contained in:
Edward Diener
2017-01-04 10:58:14 -05:00
5 changed files with 38 additions and 37 deletions

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@ -115,8 +115,8 @@ __ iterator_facade.pdf
__ iterator_adaptor.pdf
Both |facade| and |adaptor| as well as many of the `specialized
adaptors`_ mentioned below have been proposed for standardization,
and accepted into the first C++ technical report; see our
adaptors`_ mentioned below have been proposed for standardization;
see our
`Standard Proposal For Iterator Facade and Adaptor`__ (PDF__)

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@ -9,6 +9,7 @@
#ifndef BOOST_FUNCTION_INPUT_ITERATOR
#define BOOST_FUNCTION_INPUT_ITERATOR
#include <boost/config.hpp>
#include <boost/assert.hpp>
#include <boost/mpl/if.hpp>
#include <boost/function_types/is_function_pointer.hpp>
@ -17,6 +18,7 @@
#include <boost/iterator/iterator_facade.hpp>
#include <boost/none.hpp>
#include <boost/optional/optional.hpp>
#include <boost/utility/result_of.hpp>
namespace boost {
@ -28,9 +30,9 @@ namespace iterators {
class function_input_iterator
: public iterator_facade<
function_input_iterator<Function, Input>,
typename Function::result_type,
BOOST_DEDUCED_TYPENAME result_of<Function ()>::type,
single_pass_traversal_tag,
typename Function::result_type const &
BOOST_DEDUCED_TYPENAME result_of<Function ()>::type const &
>
{
public:
@ -46,7 +48,7 @@ namespace iterators {
++state;
}
typename Function::result_type const &
BOOST_DEDUCED_TYPENAME result_of<Function ()>::type const &
dereference() const {
return (value ? value : value = (*f)()).get();
}
@ -58,7 +60,7 @@ namespace iterators {
private:
Function * f;
Input state;
mutable optional<typename Function::result_type> value;
mutable optional<BOOST_DEDUCED_TYPENAME result_of<Function ()>::type> value;
};
template <class Function, class Input>

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@ -11,6 +11,7 @@
#include <iterator>
#include <vector>
#include <boost/config.hpp>
#include <boost/iterator/function_input_iterator.hpp>
namespace {
@ -96,6 +97,23 @@ int main(int argc, char * argv[])
assert(generated[i] == 42 + i);
cout << "function iterator test with stateful function object successful." << endl;
#if !defined(BOOST_NO_CXX11_LAMBDAS) && !defined(BOOST_NO_CXX11_AUTO_DECLARATIONS)
// test the iterator with lambda expressions
int num = 42;
auto lambda_generator = [&num] { return num++; };
vector<int>().swap(generated);
copy(
boost::make_function_input_iterator(lambda_generator, 0),
boost::make_function_input_iterator(lambda_generator, 10),
back_inserter(generated)
);
assert(generated.size() == 10);
for(std::size_t i = 0; i != 10; ++i)
assert(generated[i] == 42 + i);
cout << "function iterator test with lambda expressions successful." << endl;
#endif // BOOST_NO_CXX11_LAMBDAS
return 0;
}

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@ -33,37 +33,6 @@
using boost::dummyT;
struct mult_functor {
typedef int result_type;
typedef int argument_type;
// Functors used with transform_iterator must be
// DefaultConstructible, as the transform_iterator must be
// DefaultConstructible to satisfy the requirements for
// TrivialIterator.
mult_functor() { }
mult_functor(int aa) : a(aa) { }
int operator()(int b) const { return a * b; }
int a;
};
template <class Pair>
struct select1st_
: public std::unary_function<Pair, typename Pair::first_type>
{
const typename Pair::first_type& operator()(const Pair& x) const {
return x.first;
}
typename Pair::first_type& operator()(Pair& x) const {
return x.first;
}
};
struct one_or_four {
bool operator()(dummyT x) const {
return x.foo() == 1 || x.foo() == 4;
}
};
typedef std::deque<int> storage;
typedef std::deque<int*> pointer_deque;
typedef std::set<storage::iterator> iterator_set;

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@ -56,12 +56,24 @@ int main()
STATIC_ASSERT_SAME(boost::pointee<X*>::type, X);
STATIC_ASSERT_SAME(boost::pointee<X const*>::type, X const);
#if defined(BOOST_NO_CXX11_SMART_PTR)
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<int> >::type, int);
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<X> >::type, X);
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<int const> >::type, int const);
STATIC_ASSERT_SAME(boost::pointee<std::auto_ptr<X const> >::type, X const);
#else
STATIC_ASSERT_SAME(boost::pointee<std::unique_ptr<int> >::type, int);
STATIC_ASSERT_SAME(boost::pointee<std::unique_ptr<X> >::type, X);
STATIC_ASSERT_SAME(boost::pointee<std::unique_ptr<int const> >::type, int const);
STATIC_ASSERT_SAME(boost::pointee<std::unique_ptr<X const> >::type, X const);
#endif
STATIC_ASSERT_SAME(boost::pointee<std::list<int>::iterator >::type, int);
STATIC_ASSERT_SAME(boost::pointee<std::list<X>::iterator >::type, X);