47 			u.bits.exp++;  in inc()
63 			u.bits.exp--;  in dec()
90 	if (u.bits.exp == LDBL_MAX_EXP * 2 - 1)  in sqrtl()
94 	if ((u.bits.manh | u.bits.manl | u.bits.exp) == 0)  in sqrtl()
103 	if (u.bits.exp == 0) {  in sqrtl()
114 	if ((u.bits.exp - 0x3ffe) & 1) {	/* n is odd.     */  in sqrtl()
115 		k += u.bits.exp - 0x3fff;	/* 2k = n - 1.   */  in sqrtl()
116 		u.bits.exp = 0x3fff;		/* u.e in [1,2). */  in sqrtl()
118 		k += u.bits.exp - 0x4000;	/* 2k = n - 2.   */  in sqrtl()
119 		u.bits.exp = 0x4000;		/* u.e in [2,4). */  in sqrtl()
135 	u.bits.exp += (k >> 1) - 1;  in sqrtl()
159 	u.bits.exp--;  in sqrtl()