diff options
Diffstat (limited to 'usr/src/lib/libm/common/C/ilogb.c')
| -rw-r--r-- | usr/src/lib/libm/common/C/ilogb.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/usr/src/lib/libm/common/C/ilogb.c b/usr/src/lib/libm/common/C/ilogb.c index e302bc74a6..7c8725299a 100644 --- a/usr/src/lib/libm/common/C/ilogb.c +++ b/usr/src/lib/libm/common/C/ilogb.c @@ -27,14 +27,12 @@ * Use is subject to license terms. */ -#if defined(ELFOBJ) #pragma weak ilogb = __ilogb -#endif #include "libm.h" #include "xpg6.h" /* __xpg6 */ -#if defined(USE_FPSCALE) || defined(__x86) +#if defined(__x86) static const double two52 = 4503599627370496.0; #else /* @@ -57,7 +55,7 @@ ilogb_subnormal(unsigned v, unsigned w) { v <<= 1; return (r + ((0xffffaa50 >> v) & 0x3)); } -#endif /* defined(USE_FPSCALE) */ +#endif /* defined(__x86) */ static int raise_invalid(int v) { /* SUSv3 requires ilogb(0,+/-Inf,NaN) raise invalid */ @@ -80,7 +78,7 @@ ilogb(double x) { if ((px[LOWORD] | k) == 0) return (raise_invalid(0x80000001)); else { -#if defined(USE_FPSCALE) || defined(__x86) +#if defined(__x86) x *= two52; return (((px[HIWORD] & 0x7ff00000) >> 20) - 1075); #else |