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-rw-r--r--sysdeps/ieee754/dbl-64/e_sinh.c90
1 files changed, 0 insertions, 90 deletions
diff --git a/sysdeps/ieee754/dbl-64/e_sinh.c b/sysdeps/ieee754/dbl-64/e_sinh.c
deleted file mode 100644
index 8479bdd9b8..0000000000
--- a/sysdeps/ieee754/dbl-64/e_sinh.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/* @(#)e_sinh.c 5.1 93/09/24 */
-/*
- * ====================================================
- * 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_sinh.c,v 1.7 1995/05/10 20:46:13 jtc Exp $";
-#endif
-
-/* __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 <= 22 : sinh(x) := --------------, E=expm1(x)
- * 2
- *
- * 22 <= 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 double one = 1.0, shuge = 1.0e307;
-
-double
-__ieee754_sinh (double x)
-{
- double t, w, h;
- int32_t ix, jx;
- u_int32_t lx;
-
- /* High word of |x|. */
- GET_HIGH_WORD (jx, x);
- ix = jx & 0x7fffffff;
-
- /* x is INF or NaN */
- if (__glibc_unlikely (ix >= 0x7ff00000))
- return x + x;
-
- h = 0.5;
- if (jx < 0)
- h = -h;
- /* |x| in [0,22], return sign(x)*0.5*(E+E/(E+1))) */
- if (ix < 0x40360000) /* |x|<22 */
- {
- if (__glibc_unlikely (ix < 0x3e300000)) { /* |x|<2**-28 */
- math_check_force_underflow (x);
- if (shuge + x > one)
- return x;
- /* sinh(tiny) = tiny with inexact */
- }
- t = __expm1 (fabs (x));
- if (ix < 0x3ff00000)
- return h * (2.0 * t - t * t / (t + one));
- return h * (t + t / (t + one));
- }
-
- /* |x| in [22, log(maxdouble)] return 0.5*exp(|x|) */
- if (ix < 0x40862e42)
- return h * __ieee754_exp (fabs (x));
-
- /* |x| in [log(maxdouble), overflowthresold] */
- GET_LOW_WORD (lx, x);
- if (ix < 0x408633ce || ((ix == 0x408633ce) && (lx <= (u_int32_t) 0x8fb9f87d)))
- {
- w = __ieee754_exp (0.5 * fabs (x));
- t = h * w;
- return t * w;
- }
-
- /* |x| > overflowthresold, sinh(x) overflow */
- return math_narrow_eval (x * shuge);
-}
-strong_alias (__ieee754_sinh, __sinh_finite)