dxx-rebirth/common/main/cast_range_result.h
Kp 665713f315 Remove static inline declarations from fwd-partial_range.h
A declaration is useful if it declares an external function.  A static
inline declaration, if not followed by the definition later in the same
translation unit, will not be useful.  Remove such declarations, and
rely on using the definition as a declaration for those files that
actually call partial_range() or similar functions.
2020-06-10 02:25:32 +00:00

40 lines
1.1 KiB
C++

/*
* This file is part of the DXX-Rebirth project <https://www.dxx-rebirth.com/>.
* It is copyright by its individual contributors, as recorded in the
* project's Git history. See COPYING.txt at the top level for license
* terms and a link to the Git history.
*/
#pragma once
#include <iterator>
#include <utility>
#include "partial_range.h"
template <typename result_type, typename iterator_type>
class iterator_result_converter : public iterator_type
{
public:
iterator_result_converter(iterator_type &&iter) :
iterator_type(std::move(iter))
{
}
iterator_type base() const
{
return *this;
}
result_type operator*() const
{
return this->iterator_type::operator*();
}
iterator_result_converter &operator++()
{
return static_cast<iterator_result_converter &>(this->iterator_type::operator++());
}
};
template <typename result_type, typename range_type, typename iterator_type = iterator_result_converter<result_type, decltype(std::begin(std::declval<range_type &>()))>>
static inline partial_range_t<iterator_type> cast_range_result(range_type &range)
{
return range;
}