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add functional/equiv

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fix is_bind_expression
add polymorphic version not1, not2
This commit is contained in:
bolero-MURAKAMI 2013-09-04 12:07:54 +09:00
parent d9e9c23f67
commit ffb3ccece8
5 changed files with 191 additions and 21 deletions
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53
sprout/functional/not1.hpp
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@ -9,24 +9,57 @@
#define SPROUT_FUNCTIONAL_NOT1_HPP
#include <functional>
#include <utility>
#include <sprout/config.hpp>
#include <sprout/functional/type_traits/is_strict_function.hpp>
#include <sprout/utility/forward.hpp>
namespace sprout {
namespace detail {
template<typename Predicate, bool IsStrict = sprout::is_strict_unary_function<Predicate>::value>
class unary_negate_impl;
template<typename Predicate>
class unary_negate_impl<Predicate, true> {
public:
typedef typename Predicate::argument_type argument_type;
typedef bool result_type;
protected:
Predicate fn;
public:
explicit SPROUT_CONSTEXPR unary_negate_impl(Predicate const& pred)
: fn(pred)
{}
SPROUT_CONSTEXPR bool operator()(typename Predicate::argument_type const& x) const {
return !fn(x);
}
};
template<typename Predicate>
class unary_negate_impl<Predicate, false> {
protected:
Predicate fn;
public:
explicit SPROUT_CONSTEXPR unary_negate_impl(Predicate const& pred)
: fn(pred)
{}
template<typename T>
SPROUT_CONSTEXPR decltype(!std::declval<Predicate const&>()(std::declval<T>()))
operator()(T&& x) const {
return !fn(sprout::forward<T>(x));
}
};
} // namespace detail
// 20.8.8 negators
template<typename Predicate>
class unary_negate {
public:
typedef typename Predicate::argument_type argument_type;
typedef bool result_type;
protected:
Predicate fn;
class unary_negate
: public sprout::detail::unary_negate_impl<Predicate>
{
public:
explicit SPROUT_CONSTEXPR unary_negate(Predicate const& pred)
: fn(pred)
: sprout::detail::unary_negate_impl<Predicate>(pred)
{}
SPROUT_CONSTEXPR bool operator()(typename Predicate::argument_type const& x) const {
return !fn(x);
}
};
template<typename Predicate>