mutable_ring.h

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#pragma once
 
#include "di/container/ring/constant_ring.h"
#include "di/container/vector/mutable_vector.h"
 
namespace di::concepts::detail {
template<typename T>
concept MutableRing = MutableVector<T> && ConstantRing<T> && requires(T& lvalue, usize n) {
    { lvalue.assume_head(n) } -> LanguageVoid;
    { lvalue.assume_tail(n) } -> LanguageVoid;
};
}
 
namespace di::meta::detail {
template<concepts::detail::MutableVector T>
using RingAllocResult = decltype(util::declval<T&>().reserve_from_nothing(util::declval<size_t>()));
}