subtract          239 src/Float16.cpp     result.subtract(rhsAPF, getLLVMAPFRoundingMode(roundingMode));
subtract          292 src/Float16.cpp     return this->subtract(rhs, RoundingMode::ToNearestTiesToEven);
subtract          117 src/Float16.h      EXPORT float16_t subtract(float16_t rhs, RoundingMode roundingMode) const;