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xo-unit: + quantity methods is_negative()/is_positive()

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Roland Conybeare 2024-06-10 12:03:34 -04:00
commit 530a569cfa
1 changed files with 5 additions and 0 deletions
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include/xo/unit/quantity.hpp
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@ -78,6 +78,11 @@ namespace xo {
/** @brief s_unit in quantity representing amount (@c scale_ * @c s_unit) **/
constexpr const unit_type & unit() const { return s_scaled_unit; }
/** @brief true iff this quantity is strictly negative **/
constexpr bool is_negative() const { return scale_ < Repr{0}; }
/** @brief true iff this quantity is strictly positive **/
constexpr bool is_positive() const { return scale_ > Repr{0}; }
/** @brief true iff this quantity represents a dimensionless value **/
static constexpr bool is_dimensionless() {
return s_scaled_unit.is_dimensionless();