mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
62 lines
2 KiB
C++
62 lines
2 KiB
C++
/*=============================================================================
|
|
Copyright (c) 2011-2015 Bolero MURAKAMI
|
|
https://github.com/bolero-MURAKAMI/Sprout
|
|
|
|
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)
|
|
=============================================================================*/
|
|
#ifndef SPROUT_FUNCTIONAL_PTR_FUN_HPP
|
|
#define SPROUT_FUNCTIONAL_PTR_FUN_HPP
|
|
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/functional/base.hpp>
|
|
|
|
namespace sprout {
|
|
// D.8.2.1 adaptors (deprecated)
|
|
|
|
template<typename Arg, typename Result>
|
|
class pointer_to_unary_function
|
|
: public sprout::unary_function<Arg, Result>
|
|
{
|
|
protected:
|
|
Result (*ptr_)(Arg);
|
|
public:
|
|
SPROUT_CONSTEXPR pointer_to_unary_function() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
|
|
explicit SPROUT_CONSTEXPR pointer_to_unary_function(Result (*x)(Arg))
|
|
: ptr_(x)
|
|
{}
|
|
SPROUT_CONSTEXPR Result operator()(Arg x) const {
|
|
return ptr_(x);
|
|
}
|
|
};
|
|
|
|
template<typename Arg, typename Result>
|
|
inline SPROUT_CONSTEXPR sprout::pointer_to_unary_function<Arg, Result>
|
|
ptr_fun(Result (*x)(Arg)) {
|
|
return sprout::pointer_to_unary_function<Arg, Result>(x);
|
|
}
|
|
|
|
template<typename Arg1, typename Arg2, typename Result>
|
|
class pointer_to_binary_function
|
|
: public sprout::binary_function<Arg1, Arg2, Result>
|
|
{
|
|
protected:
|
|
Result (*ptr_)(Arg1, Arg2);
|
|
public:
|
|
SPROUT_CONSTEXPR pointer_to_binary_function() SPROUT_DEFAULTED_DEFAULT_CONSTRUCTOR_DECL
|
|
explicit SPROUT_CONSTEXPR pointer_to_binary_function(Result (*x)(Arg1, Arg2))
|
|
: ptr_(x)
|
|
{}
|
|
SPROUT_CONSTEXPR Result operator()(Arg1 x, Arg2 y) const {
|
|
return ptr_(x, y);
|
|
}
|
|
};
|
|
|
|
template<typename Arg1, typename Arg2, typename Result>
|
|
inline SPROUT_CONSTEXPR sprout::pointer_to_binary_function<Arg1, Arg2, Result>
|
|
ptr_fun(Result (*x)(Arg1, Arg2)) {
|
|
return sprout::pointer_to_binary_function<Arg1, Arg2, Result>(x);
|
|
}
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_FUNCTIONAL_PTR_FUN_HPP
|