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Simplify get_arg_index_by_name

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This commit is contained in:
Victor Zverovich 2021-05-15 06:28:20 -07:00
parent 54f22a3eef
commit 588bdb5404
1 changed files with 11 additions and 17 deletions

28
include/fmt/core.h
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@ -2444,28 +2444,22 @@ constexpr int get_arg_index_by_name(basic_string_view<Char> name) {
if constexpr (detail::is_statically_named_arg<T>()) { if constexpr (detail::is_statically_named_arg<T>()) {
if (name == T::name) return N; if (name == T::name) return N;
} }
if constexpr (sizeof...(Args) == 0) { if constexpr (sizeof...(Args) > 0)
return invalid_arg_index;
} else {
return get_arg_index_by_name<N + 1, Args...>(name); return get_arg_index_by_name<N + 1, Args...>(name);
}
}
template <typename... Args, typename Char>
constexpr int get_arg_index_by_name(basic_string_view<Char> name) {
if constexpr (sizeof...(Args) == 0) {
return invalid_arg_index;
} else {
return get_arg_index_by_name<0, Args...>(name);
}
}
#else
template <typename... Args, typename Char>
constexpr int get_arg_index_by_name(basic_string_view<Char>) {
return invalid_arg_index; return invalid_arg_index;
} }
#endif #endif
template <typename... Args, typename Char>
FMT_CONSTEXPR int get_arg_index_by_name(basic_string_view<Char> name) {
#if FMT_USE_NONTYPE_TEMPLATE_PARAMETERS
if constexpr (sizeof...(Args) > 0)
return get_arg_index_by_name<0, Args...>(name);
#endif
(void)name;
return invalid_arg_index;
}
template <typename Char, typename ErrorHandler, typename... Args> template <typename Char, typename ErrorHandler, typename... Args>
class format_string_checker { class format_string_checker {
public: public: