diff options
author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
---|---|---|
committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /sysdeps/ieee754/flt-32/e_acoshf.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.xz glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'sysdeps/ieee754/flt-32/e_acoshf.c')
-rw-r--r-- | sysdeps/ieee754/flt-32/e_acoshf.c | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/sysdeps/ieee754/flt-32/e_acoshf.c b/sysdeps/ieee754/flt-32/e_acoshf.c deleted file mode 100644 index aabfb85df7..0000000000 --- a/sysdeps/ieee754/flt-32/e_acoshf.c +++ /dev/null @@ -1,49 +0,0 @@ -/* e_acoshf.c -- float version of e_acosh.c. - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. - */ - -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -#if defined(LIBM_SCCS) && !defined(lint) -static char rcsid[] = "$NetBSD: e_acoshf.c,v 1.5 1995/05/12 04:57:20 jtc Exp $"; -#endif - -#include <math.h> -#include <math_private.h> - -static const float -one = 1.0, -ln2 = 6.9314718246e-01; /* 0x3f317218 */ - -float __ieee754_acoshf(float x) -{ - float t; - int32_t hx; - GET_FLOAT_WORD(hx,x); - if(hx<0x3f800000) { /* x < 1 */ - return (x-x)/(x-x); - } else if(hx >=0x4d800000) { /* x > 2**28 */ - if(hx >=0x7f800000) { /* x is inf of NaN */ - return x+x; - } else - return __ieee754_logf(x)+ln2; /* acosh(huge)=log(2x) */ - } else if (hx==0x3f800000) { - return 0.0; /* acosh(1) = 0 */ - } else if (hx > 0x40000000) { /* 2**28 > x > 2 */ - t=x*x; - return __ieee754_logf((float)2.0*x-one/(x+__ieee754_sqrtf(t-one))); - } else { /* 1<x<2 */ - t = x-one; - return __log1pf(t+__ieee754_sqrtf((float)2.0*t+t*t)); - } -} -strong_alias (__ieee754_acoshf, __acoshf_finite) |