[format.formatter.locking] (original) (raw)

28 Text processing library [text]

28.5 Formatting [format]

28.5.6 Formatter [format.formatter]

28.5.6.2 Formatter locking [format.formatter.locking]

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template<class T> constexpr bool enable_nonlocking_formatter_optimization = false;

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Remarks: Pursuant to [namespace.std], users may specialize enable_nonlocking_formatter_optimization for cv-unqualified program-defined types.

Such specializations shall be usable in constant expressions ([expr.const]) and have type const bool.