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-rw-r--r--sysdeps/ieee754/ldbl-128ibm/e_sinhl.c79
1 files changed, 0 insertions, 79 deletions
diff --git a/sysdeps/ieee754/ldbl-128ibm/e_sinhl.c b/sysdeps/ieee754/ldbl-128ibm/e_sinhl.c
deleted file mode 100644
index 67d9d24ce7..0000000000
--- a/sysdeps/ieee754/ldbl-128ibm/e_sinhl.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-
-/* __ieee754_sinh(x)
- * Method :
- * mathematically sinh(x) if defined to be (exp(x)-exp(-x))/2
- * 1. Replace x by |x| (sinh(-x) = -sinh(x)).
- * 2.
- * E + E/(E+1)
- * 0 <= x <= 40 : sinh(x) := --------------, E=expm1(x)
- * 2
- *
- * 40 <= x <= lnovft : sinh(x) := exp(x)/2
- * lnovft <= x <= ln2ovft: sinh(x) := exp(x/2)/2 * exp(x/2)
- * ln2ovft < x : sinh(x) := x*shuge (overflow)
- *
- * Special cases:
- * sinh(x) is |x| if x is +INF, -INF, or NaN.
- * only sinh(0)=0 is exact for finite x.
- */
-
-#include <float.h>
-#include <math.h>
-#include <math_private.h>
-
-static const long double one = 1.0, shuge = 1.0e307;
-
-long double
-__ieee754_sinhl(long double x)
-{
- long double t,w,h;
- int64_t ix,jx;
- double xhi;
-
- /* High word of |x|. */
- xhi = ldbl_high (x);
- EXTRACT_WORDS64 (jx, xhi);
- ix = jx&0x7fffffffffffffffLL;
-
- /* x is INF or NaN */
- if(ix>=0x7ff0000000000000LL) return x+x;
-
- h = 0.5;
- if (jx<0) h = -h;
- /* |x| in [0,40], return sign(x)*0.5*(E+E/(E+1))) */
- if (ix < 0x4044000000000000LL) { /* |x|<40 */
- if (ix<0x3c90000000000000LL) { /* |x|<2**-54 */
- math_check_force_underflow (x);
- if(shuge+x>one) return x;/* sinhl(tiny) = tiny with inexact */
- }
- t = __expm1l(fabsl(x));
- if(ix<0x3ff0000000000000LL) return h*(2.0*t-t*t/(t+one));
- w = t/(t+one);
- return h*(t+w);
- }
-
- /* |x| in [40, log(maxdouble)] return 0.5*exp(|x|) */
- if (ix < 0x40862e42fefa39efLL) return h*__ieee754_expl(fabsl(x));
-
- /* |x| in [log(maxdouble), overflowthresold] */
- if (ix <= 0x408633ce8fb9f87eLL) {
- w = __ieee754_expl(0.5*fabsl(x));
- t = h*w;
- return t*w;
- }
-
- /* |x| > overflowthresold, sinh(x) overflow */
- return x*shuge;
-}
-strong_alias (__ieee754_sinhl, __sinhl_finite)