diff options
Diffstat (limited to 'lib/msun/src/s_scalbn.c')
| -rw-r--r-- | lib/msun/src/s_scalbn.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/lib/msun/src/s_scalbn.c b/lib/msun/src/s_scalbn.c index 1effa62..6549931 100644 --- a/lib/msun/src/s_scalbn.c +++ b/lib/msun/src/s_scalbn.c @@ -5,19 +5,19 @@ * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice + * software is freely granted, provided that this notice * is preserved. * ==================================================== */ #ifndef lint -static char rcsid[] = "$Id: s_scalbn.c,v 1.6 1994/08/18 23:10:13 jtc Exp $"; +static char rcsid[] = "$Id: s_scalbn.c,v 1.1.1.1 1994/08/19 09:39:52 jkh Exp $"; #endif -/* +/* * scalbn (double x, int n) - * scalbn(x,n) returns x* 2**n computed by exponent - * manipulation rather than by actually performing an + * scalbn(x,n) returns x* 2**n computed by exponent + * manipulation rather than by actually performing an * exponentiation or a multiplication. */ @@ -46,13 +46,13 @@ tiny = 1.0e-300; k = (hx&0x7ff00000)>>20; /* extract exponent */ if (k==0) { /* 0 or subnormal x */ if ((lx|(hx&0x7fffffff))==0) return x; /* +-0 */ - x *= two54; + x *= two54; GET_HIGH_WORD(hx,x); - k = ((hx&0x7ff00000)>>20) - 54; + k = ((hx&0x7ff00000)>>20) - 54; if (n< -50000) return tiny*x; /*underflow*/ } if (k==0x7ff) return x+x; /* NaN or Inf */ - k = k+n; + k = k+n; if (k > 0x7fe) return huge*copysign(huge,x); /* overflow */ if (k > 0) /* normal result */ {SET_HIGH_WORD(x,(hx&0x800fffff)|(k<<20)); return x;} |
