constexpr_intgral.h

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#pragma once
 
#include "di/container/string/fixed_string.h"
#include "di/meta/constexpr.h"
#include "di/parser/basic/integer.h"
#include "di/parser/parse_unchecked.h"
#include "di/parser/string_view_parser_context.h"
#include "di/vocab/array/prelude.h"
 
namespace di {
inline namespace literals {
    inline namespace constexpr_integral_literals {
        template<char... chars>
        constexpr auto operator""_zic() {
            constexpr auto do_parse = [] {
                auto s = Array { chars... };
                auto view = container::TransparentStringView { s.data(), s.data() + s.size() };
                return parser::parse_unchecked<size_t>(view);
            };
            return meta::Constexpr<do_parse()> {};
        }
        constexpr auto operator""_zic() {…}
    }
    inline namespace constexpr_integral_literals {…}
}
}
 
#if !defined(DI_NO_GLOBALS) && !defined(DI_NO_GLOBAL_CONSTEXPR_INTEGRAL_LITERALS)
using namespace di::literals::constexpr_integral_literals;
#endif