diff options
Diffstat (limited to 'lib/msun/src/e_acosh.c')
| -rw-r--r-- | lib/msun/src/e_acosh.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/lib/msun/src/e_acosh.c b/lib/msun/src/e_acosh.c index f54ba32..efaefea 100644 --- a/lib/msun/src/e_acosh.c +++ b/lib/msun/src/e_acosh.c @@ -5,18 +5,18 @@ * * 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: e_acosh.c,v 1.6 1994/08/18 23:04:54 jtc Exp $"; +static char rcsid[] = "$Id: e_acosh.c,v 1.1.1.1 1994/08/19 09:39:43 jkh Exp $"; #endif /* __ieee754_acosh(x) * Method : - * Based on + * Based on * acosh(x) = log [ x + sqrt(x*x-1) ] * we have * acosh(x) := log(x)+ln2, if x is large; else @@ -32,9 +32,9 @@ static char rcsid[] = "$Id: e_acosh.c,v 1.6 1994/08/18 23:04:54 jtc Exp $"; #include "math_private.h" #ifdef __STDC__ -static const double +static const double #else -static double +static double #endif one = 1.0, ln2 = 6.93147180559945286227e-01; /* 0x3FE62E42, 0xFEFA39EF */ @@ -45,7 +45,7 @@ ln2 = 6.93147180559945286227e-01; /* 0x3FE62E42, 0xFEFA39EF */ double __ieee754_acosh(x) double x; #endif -{ +{ double t; int32_t hx; u_int32_t lx; @@ -55,7 +55,7 @@ ln2 = 6.93147180559945286227e-01; /* 0x3FE62E42, 0xFEFA39EF */ } else if(hx >=0x41b00000) { /* x > 2**28 */ if(hx >=0x7ff00000) { /* x is inf of NaN */ return x+x; - } else + } else return __ieee754_log(x)+ln2; /* acosh(huge)=log(2x) */ } else if(((hx-0x3ff00000)|lx)==0) { return 0.0; /* acosh(1) = 0 */ |
