1#include "libm.h"
2
3#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
4long double rintl(long double x)
5{
6	return rint(x);
7}
8#elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
9
10static const long double toint = 1/LDBL_EPSILON;
11
12long double rintl(long double x)
13{
14	union ldshape u = {x};
15	int e = u.i.se & 0x7fff;
16	int s = u.i.se >> 15;
17	long double y;
18
19	if (e >= 0x3fff+LDBL_MANT_DIG-1)
20		return x;
21	if (s)
22		y = x - toint + toint;
23	else
24		y = x + toint - toint;
25	if (y == 0)
26		return 0*x;
27	return y;
28}
29#endif
30