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comprehension.h
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comprehension.h
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#pragma once
#include <type_traits>
#include <boost/phoenix.hpp>
#include "do__.h"
#include "for_each_.h"
namespace comprehension
{
namespace detail
{
struct Insert
{
using result_type = void;
template <class T, class V, class... Args>
void operator()(T& comp_vec, const V& v, const Args&... args) const
{
comp_vec.ins(boost::phoenix::ref(v), args...);
}
};
}
template <class Con>
class CompVec
: public Con
{
public:
using this_t = CompVec<Con>;
using base1_t = Con;
using base1_t::base1_t;
template <class F1, class... Args, std::enable_if_t<std::is_invocable_v<F1>, void*> = nullptr>
CompVec(const F1& fu, const Args&... args)
: base1_t{}
{
ins(fu, args...);
}
private:
template <class V, class F1>
void ins(const V& v, const F1& f1)
{
f1
[
boost::phoenix::push_back(boost::phoenix::ref(*this), v)
]();
}
template <class V, class F1, class F2, class... Args>
void ins(const V& v, const F1& f1, const F2& f2, const Args&... args)
{
boost::phoenix::function<detail::Insert> ph_ins;
f1
[
ph_ins(boost::phoenix::ref(*this), v, f2, args...)
]();
}
friend detail::Insert;
};
}