constrain templated format_to on proper format string type. #883
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Signed-off-by: Daniela Engert <dani@ngrt.de>
vitaut
reviewed
Sep 26, 2018
| @@ -1285,6 +1285,9 @@ struct format_string_traits< | |||
| basic_string_view<typename S::char_type>, S>::value>::type> : | |||
| format_string_traits_base<typename S::char_type> {}; | |||
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| template <typename S> | |||
| struct is_format_string : std::is_empty<format_string_traits<S>> {}; | |||
|
Thanks! |
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Signed-off-by: Daniela Engert dani@ngrt.de