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fix: std::formattable usage is now conditional

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Mateusz Pusz
2024-04-18 22:41:13 +01:00
parent c5afd722e7
commit 86743d6d24
1 changed files with 4 additions and 0 deletions
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4
src/core/include/mp-units/format.h
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@@ -265,7 +265,11 @@ public:
// subentity-id ::= 'N' | 'U' | 'D'
// format-spec ::= <as specified by the formatter for the argument type>
//
#if __cpp_lib_format_ranges
template<auto Reference, typename Char, std::formattable<Char> Rep>
#else
template<auto Reference, typename Rep, typename Char>
#endif
class MP_UNITS_STD_FMT::formatter<mp_units::quantity<Reference, Rep>, Char> {
static constexpr auto unit = get_unit(Reference);
static constexpr auto dimension = get_quantity_spec(Reference).dimension;