fixed_string.hpp

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#pragma once
 
 
#include <cstddef>
#include <string_view>
 
namespace comms {
 
template <std::size_t N>
struct FixedString {
    // NOLINTBEGIN(cppcoreguidelines-avoid-c-arrays,modernize-avoid-c-arrays,google-explicit-constructor,hicpp-explicit-conversions)
    char value[N]{};  
 
    constexpr FixedString() noexcept = default;
 
    constexpr FixedString(const char (&str)[N]) noexcept {
        for (std::size_t i = 0; i < N; ++i) {
            value[i] = str[i];
        }
    }
 
    [[nodiscard]] constexpr std::string_view view() const noexcept {
        return std::string_view{static_cast<const char*>(value), N - 1};
    }
 
    [[nodiscard]] constexpr operator std::string_view() const noexcept {
        return view();
    }
    // NOLINTEND(cppcoreguidelines-avoid-c-arrays,modernize-avoid-c-arrays,google-explicit-constructor,hicpp-explicit-conversions)
 
    [[nodiscard]] static constexpr std::size_t size() noexcept {
        return N - 1;
    }
 
    [[nodiscard]] static constexpr bool empty() noexcept {
        return N <= 1;
    }
 
    template <std::size_t M>
    [[nodiscard]] constexpr bool operator==(const FixedString<M>& other) const noexcept {
        if constexpr (M != N) {
            return false;
        } else {
            for (std::size_t i = 0; i < N; ++i) {
                if (value[i] != other.value[i]) {
                    return false;
                }
            }
            return true;
        }
    }
};
 
}  // namespace comms