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Return error in Menu

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sha512sum 2024-02-28 22:46:09 +00:00
parent c6511790db
commit 461a7ee3e0
1 changed files with 11 additions and 5 deletions
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16
include/utempl/menu.hpp
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@ -85,10 +85,10 @@ struct Menu {
return Menu<storage + Tuple{message}, Fs..., std::remove_cvref_t<F>>{.functionStorage = this->functionStorage + Tuple(std::forward<F>(f))};
};
template <ConstexprString fmt, ConstexprString enter = "|> ">
inline constexpr auto Run(std::istream& in = std::cin, std::FILE* out = stdout) const {
inline constexpr auto Run(std::istream& in = std::cin, std::FILE* out = stdout) const -> std::size_t {
using Cleared = std::remove_cvref_t<decltype(*this)>;
constexpr auto maxSize = Cleared::GetMaxSize();
[&]<auto... Is>(std::index_sequence<Is...>){
return [&]<auto... Is>(std::index_sequence<Is...>) -> std::size_t {
constexpr auto message = ([&]<auto I>(Wrapper<I>){
constexpr auto message = Get<I>(storage);
constexpr std::size_t s = maxSize - (message.need ? message.need->size() : CountDigits(I));
@ -113,9 +113,13 @@ struct Menu {
,str3);
return ConstexprString<size>(data);
}(Wrapper<Is>{}) + ...) + enter;
std::fwrite(message.begin(), 1, message.size(), out);
std::fflush(out);
auto result = std::fwrite(message.begin(), 1, message.size(), out);
if(result < message.size()) {
return result;
};
if(std::fflush(out) != 0) {
return EOF;
};
std::string input;
std::getline(in, input);
([&]<auto I, impl::CallbackMessage message = Get<I>(storage)>(Wrapper<I>) {
@ -129,8 +133,10 @@ struct Menu {
};
};
}(Wrapper<Is>{}), ...);
return 0;
}(std::index_sequence_for<Fs...>());
};
};
} // namespace menu