T(RN, 0x0p+0, FP_ILOGB0, INVALID) T(RN, -0x0p+0, FP_ILOGB0, INVALID) T(RN, -0x1p-100, -100, 0) T(RN, 0x1p+0, 0, 0) T(RN, -0x1p+0, 0, 0) T(RN, inf, -1U/2, INVALID) T(RN, -inf, -1U/2, INVALID) T(RN, nan, FP_ILOGBNAN, INVALID) T(RN, 0x1p-149, -149, 0)