1#include "libm.h"
2
3#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
4int __fpclassifyl(long double x) {
5    return __fpclassify(x);
6}
7#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
8int __fpclassifyl(long double x) {
9    union ldshape u = {x};
10    int e = u.i.se & 0x7fff;
11    int msb = u.i.m >> 63;
12    if (!e && !msb)
13        return u.i.m ? FP_SUBNORMAL : FP_ZERO;
14    if (!msb)
15        return FP_NAN;
16    if (e == 0x7fff)
17        return u.i.m << 1 ? FP_NAN : FP_INFINITE;
18    return FP_NORMAL;
19}
20#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
21int __fpclassifyl(long double x) {
22    union ldshape u = {x};
23    int e = u.i.se & 0x7fff;
24    u.i.se = 0;
25    if (!e)
26        return u.i2.lo | u.i2.hi ? FP_SUBNORMAL : FP_ZERO;
27    if (e == 0x7fff)
28        return u.i2.lo | u.i2.hi ? FP_NAN : FP_INFINITE;
29    return FP_NORMAL;
30}
31#endif
32