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refactor(example): NTTP template deduction failure workaround for HAE altitude

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Mateusz Pusz
2023-05-15 16:19:44 +02:00
parent d97e650cac
commit 9a51ed55c9
1 changed files with 17 additions and 27 deletions
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44
example/unmanned_aerial_vehicle.cpp
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@@ -58,38 +58,28 @@ constexpr const char* to_text(earth_gravity_model m)
} }
} }
// TODO Why gcc does not deduce `M`? Is it a gcc bug? template<earth_gravity_model M>
// template<class CharT, class Traits, auto M> [[nodiscard]] consteval bool is_hae(height_above_ellipsoid_t<M>)
// std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const hae_altitude<M>& a)
// {
// return os << a.absolute() << " HAE(" << to_text(M) << ")";
// }
// template<auto M>
// struct STD_FMT::formatter<hae_altitude<M>> : formatter<typename hae_altitude<M>::quantity_type> {
// template<typename FormatContext>
// auto format(const hae_altitude<M>& a, FormatContext& ctx)
// {
// formatter<typename hae_altitude<M>::quantity_type>::format(a.absolute(), ctx);
// return STD_FMT::format_to(ctx.out(), " HAE({})", to_text(M));
// }
// };
template<class CharT, class Traits>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os,
const hae_altitude<earth_gravity_model::egm2008_1>& a)
{ {
return os << a.absolute() << " HAE(" << to_text(earth_gravity_model::egm2008_1) << ")"; return true;
}
[[nodiscard]] consteval bool is_hae(...) { return false; }
template<class CharT, class Traits, QuantityPoint QP>
requires(is_hae(QP::absolute_point_origin))
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const QP& a)
{
return os << a.absolute() << " HAE(" << to_text(a.absolute_point_origin.egm) << ")";
} }
template<> template<QuantityPoint QP>
struct STD_FMT::formatter<hae_altitude<earth_gravity_model::egm2008_1>> : requires(is_hae(QP::absolute_point_origin))
formatter<typename hae_altitude<earth_gravity_model::egm2008_1>::quantity_type> { struct STD_FMT::formatter<QP> : formatter<typename QP::quantity_type> {
template<typename FormatContext> template<typename FormatContext>
auto format(const hae_altitude<earth_gravity_model::egm2008_1>& a, FormatContext& ctx) auto format(const QP& a, FormatContext& ctx)
{ {
formatter<typename hae_altitude<earth_gravity_model::egm2008_1>::quantity_type>::format(a.absolute(), ctx); formatter<typename QP::quantity_type>::format(a.absolute(), ctx);
return STD_FMT::format_to(ctx.out(), " HAE({})", to_text(earth_gravity_model::egm2008_1)); return STD_FMT::format_to(ctx.out(), " HAE({})", to_text(QP::absolute_point_origin.egm));
} }
}; };