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authorPaul E. Murphy <murphyp@linux.vnet.ibm.com>2016-06-28 11:06:42 -0500
committerPaul E. Murphy <murphyp@linux.vnet.ibm.com>2016-08-19 16:47:31 -0500
commitd5602cebf1ff25ef34298a52209283879609ec16 (patch)
tree6d48955e25b06314b107b9484ae008d8b1a2c374 /math/s_catanhf.c
parentf6d3a72eca7558e3c52cecc8484665399eeea626 (diff)
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Convert _Complex tangent functions to generated code
This converts s_c{,a}tan{,h}{f,,l} into a single templated file c{,a}tan{,h}_template.c with the exception of alpha.
Diffstat (limited to 'math/s_catanhf.c')
-rw-r--r--math/s_catanhf.c137
1 files changed, 0 insertions, 137 deletions
diff --git a/math/s_catanhf.c b/math/s_catanhf.c
deleted file mode 100644
index fe43a518fb..0000000000
--- a/math/s_catanhf.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/* Return arc hyperbole tangent for float value.
- Copyright (C) 1997-2016 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <complex.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ float
-__catanhf (__complex__ float x)
-{
- __complex__ float res;
- int rcls = fpclassify (__real__ x);
- int icls = fpclassify (__imag__ x);
-
- if (__glibc_unlikely (rcls <= FP_INFINITE || icls <= FP_INFINITE))
- {
- if (icls == FP_INFINITE)
- {
- __real__ res = __copysignf (0.0, __real__ x);
- __imag__ res = __copysignf (M_PI_2, __imag__ x);
- }
- else if (rcls == FP_INFINITE || rcls == FP_ZERO)
- {
- __real__ res = __copysignf (0.0, __real__ x);
- if (icls >= FP_ZERO)
- __imag__ res = __copysignf (M_PI_2, __imag__ x);
- else
- __imag__ res = __nanf ("");
- }
- else
- {
- __real__ res = __nanf ("");
- __imag__ res = __nanf ("");
- }
- }
- else if (__glibc_unlikely (rcls == FP_ZERO && icls == FP_ZERO))
- {
- res = x;
- }
- else
- {
- if (fabsf (__real__ x) >= 16.0f / FLT_EPSILON
- || fabsf (__imag__ x) >= 16.0f / FLT_EPSILON)
- {
- __imag__ res = __copysignf ((float) M_PI_2, __imag__ x);
- if (fabsf (__imag__ x) <= 1.0f)
- __real__ res = 1.0f / __real__ x;
- else if (fabsf (__real__ x) <= 1.0f)
- __real__ res = __real__ x / __imag__ x / __imag__ x;
- else
- {
- float h = __ieee754_hypotf (__real__ x / 2.0f,
- __imag__ x / 2.0f);
- __real__ res = __real__ x / h / h / 4.0f;
- }
- }
- else
- {
- if (fabsf (__real__ x) == 1.0f
- && fabsf (__imag__ x) < FLT_EPSILON * FLT_EPSILON)
- __real__ res = (__copysignf (0.5f, __real__ x)
- * ((float) M_LN2
- - __ieee754_logf (fabsf (__imag__ x))));
- else
- {
- float i2 = 0.0f;
- if (fabsf (__imag__ x) >= FLT_EPSILON * FLT_EPSILON)
- i2 = __imag__ x * __imag__ x;
-
- float num = 1.0f + __real__ x;
- num = i2 + num * num;
-
- float den = 1.0f - __real__ x;
- den = i2 + den * den;
-
- float f = num / den;
- if (f < 0.5f)
- __real__ res = 0.25f * __ieee754_logf (f);
- else
- {
- num = 4.0f * __real__ x;
- __real__ res = 0.25f * __log1pf (num / den);
- }
- }
-
- float absx, absy, den;
-
- absx = fabsf (__real__ x);
- absy = fabsf (__imag__ x);
- if (absx < absy)
- {
- float t = absx;
- absx = absy;
- absy = t;
- }
-
- if (absy < FLT_EPSILON / 2.0f)
- {
- den = (1.0f - absx) * (1.0f + absx);
- if (den == -0.0f)
- den = 0.0f;
- }
- else if (absx >= 1.0f)
- den = (1.0f - absx) * (1.0f + absx) - absy * absy;
- else if (absx >= 0.75f || absy >= 0.5f)
- den = -__x2y2m1f (absx, absy);
- else
- den = (1.0f - absx) * (1.0f + absx) - absy * absy;
-
- __imag__ res = 0.5f * __ieee754_atan2f (2.0f * __imag__ x, den);
- }
-
- math_check_force_underflow_complex (res);
- }
-
- return res;
-}
-#ifndef __catanhf
-weak_alias (__catanhf, catanhf)
-#endif