source: asp3_tinet_ecnl_arm/trunk/musl-1.1.18/src/math/__fpclassifyl.c@ 352

Last change on this file since 352 was 352, checked in by coas-nagasima, 6 years ago

arm向けASP3版ECNLを追加
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc;charset=UTF-8
File size: 765 bytes
Line 
1#include "libm.h"
2
3#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
4int __fpclassifyl(long double x)
5{
6 return __fpclassify(x);
7}
8#elif LDBL_MANT_DIG == 64 && LDBL_MAX_EXP == 16384
9int __fpclassifyl(long double x)
10{
11 union ldshape u = {x};
12 int e = u.i.se & 0x7fff;
13 int msb = u.i.m>>63;
14 if (!e && !msb)
15 return u.i.m ? FP_SUBNORMAL : FP_ZERO;
16 if (!msb)
17 return FP_NAN;
18 if (e == 0x7fff)
19 return u.i.m << 1 ? FP_NAN : FP_INFINITE;
20 return FP_NORMAL;
21}
22#elif LDBL_MANT_DIG == 113 && LDBL_MAX_EXP == 16384
23int __fpclassifyl(long double x)
24{
25 union ldshape u = {x};
26 int e = u.i.se & 0x7fff;
27 u.i.se = 0;
28 if (!e)
29 return u.i2.lo | u.i2.hi ? FP_SUBNORMAL : FP_ZERO;
30 if (e == 0x7fff)
31 return u.i2.lo | u.i2.hi ? FP_NAN : FP_INFINITE;
32 return FP_NORMAL;
33}
34#endif
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