40#if !defined(DISABLE_PREDEFINED_UNITS) || \
41 defined(ENABLE_PREDEFINED_FREQUENCY_UNITS)
43 frequency, hertz, hertz, Hz,
49using namespace frequency;
#define UNIT_ADD_CATEGORY_TRAIT(unitCategory)
Macro to create the is_category_unit type trait.
Definition: base.h:371
Unit Conversion Library namespace.
Definition: temperature.h:31
UNIT_ADD_WITH_METRIC_PREFIXES(mass, gram, grams, g, unit< std::ratio< 1, 1000 >, units::category::mass_unit >) UNIT_ADD(mass
Class representing SI base unit types.
Definition: base.h:759
Type representing an arbitrary unit.
Definition: base.h:886