40#if !defined(DISABLE_PREDEFINED_UNITS) || \
41 defined(ENABLE_PREDEFINED_SUBSTANCE_UNITS)
48using namespace substance;
#define UNIT_ADD_CATEGORY_TRAIT(unitCategory)
Macro to create the is_category_unit type trait.
Definition: base.h:369
Unit Conversion Library namespace.
Definition: data.h:31
squared< angle::degrees > UNIT_ADD(solid_angle, spat, spats, sp, unit< std::ratio< 4 >, steradians, std::ratio< 1 > >) using namespace solid_angle
Class representing SI base unit types.
Definition: base.h:757
Type representing an arbitrary unit.
Definition: base.h:884