1 /* This file is distributed under the University of Illinois Open Source
2 * License. See LICENSE.TXT for details.
6 #include "../int_math.h"
8 #define makeFinite(x) { \
9 (x).s.hi = crt_copysign(crt_isinf((x).s.hi) ? 1.0 : 0.0, (x).s.hi); \
13 #define zeroNaN(x) { \
14 if (crt_isnan((x).s.hi)) { \
15 (x).s.hi = crt_copysign(0.0, (x).s.hi); \
20 long double __gcc_qadd(long double, long double);
21 long double __gcc_qsub(long double, long double);
22 long double __gcc_qmul(long double, long double);
25 __multc3(long double a, long double b, long double c, long double d)
27 long double ac = __gcc_qmul(a,c);
28 long double bd = __gcc_qmul(b,d);
29 long double ad = __gcc_qmul(a,d);
30 long double bc = __gcc_qmul(b,c);
32 DD real = { .ld = __gcc_qsub(ac,bd) };
33 DD imag = { .ld = __gcc_qadd(ad,bc) };
35 if (crt_isnan(real.s.hi) && crt_isnan(imag.s.hi))
44 if (crt_isinf(aDD.s.hi) || crt_isinf(bDD.s.hi))
53 if (crt_isinf(cDD.s.hi) || crt_isinf(dDD.s.hi))
64 DD acDD = { .ld = ac };
65 DD bdDD = { .ld = bd };
66 DD adDD = { .ld = ad };
67 DD bcDD = { .ld = bc };
69 if (crt_isinf(acDD.s.hi) || crt_isinf(bdDD.s.hi) ||
70 crt_isinf(adDD.s.hi) || crt_isinf(bcDD.s.hi))
82 real.s.hi = CRT_INFINITY * (aDD.s.hi*cDD.s.hi - bDD.s.hi*dDD.s.hi);
84 imag.s.hi = CRT_INFINITY * (aDD.s.hi*dDD.s.hi + bDD.s.hi*cDD.s.hi);
89 long double _Complex z;