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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2018-12-27 15:36:51 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2018-12-27 15:36:51 +0000
commit05fa8834c6644f12405ea713c48693bf2d1864f1 (patch)
treec6b6391884370c75972a2e432d42ebbb076a0cdf /math/s_cexp.c
parent525c181a5a9a95e24d2111b7792608151a40eb84 (diff)
parent963c37d5c0eb62b38f8764b23931c0dcdd497a13 (diff)
Merge commit 'refs/top-bases/t/bigmem' into t/bigmemt/bigmem
Diffstat (limited to 'math/s_cexp.c')
-rw-r--r--math/s_cexp.c157
1 files changed, 0 insertions, 157 deletions
diff --git a/math/s_cexp.c b/math/s_cexp.c
deleted file mode 100644
index 3a476bde3c..0000000000
--- a/math/s_cexp.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* Return value of complex exponential function for double complex 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 <fenv.h>
-#include <math.h>
-#include <math_private.h>
-#include <float.h>
-
-__complex__ double
-__cexp (__complex__ double x)
-{
- __complex__ double retval;
- int rcls = fpclassify (__real__ x);
- int icls = fpclassify (__imag__ x);
-
- if (__glibc_likely (rcls >= FP_ZERO))
- {
- /* Real part is finite. */
- if (__glibc_likely (icls >= FP_ZERO))
- {
- /* Imaginary part is finite. */
- const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2);
- double sinix, cosix;
-
- if (__glibc_likely (fabs (__imag__ x) > DBL_MIN))
- {
- __sincos (__imag__ x, &sinix, &cosix);
- }
- else
- {
- sinix = __imag__ x;
- cosix = 1.0;
- }
-
- if (__real__ x > t)
- {
- double exp_t = __ieee754_exp (t);
- __real__ x -= t;
- sinix *= exp_t;
- cosix *= exp_t;
- if (__real__ x > t)
- {
- __real__ x -= t;
- sinix *= exp_t;
- cosix *= exp_t;
- }
- }
- if (__real__ x > t)
- {
- /* Overflow (original real part of x > 3t). */
- __real__ retval = DBL_MAX * cosix;
- __imag__ retval = DBL_MAX * sinix;
- }
- else
- {
- double exp_val = __ieee754_exp (__real__ x);
- __real__ retval = exp_val * cosix;
- __imag__ retval = exp_val * sinix;
- }
- math_check_force_underflow_complex (retval);
- }
- else
- {
- /* If the imaginary part is +-inf or NaN and the real part
- is not +-inf the result is NaN + iNaN. */
- __real__ retval = __nan ("");
- __imag__ retval = __nan ("");
-
- feraiseexcept (FE_INVALID);
- }
- }
- else if (__glibc_likely (rcls == FP_INFINITE))
- {
- /* Real part is infinite. */
- if (__glibc_likely (icls >= FP_ZERO))
- {
- /* Imaginary part is finite. */
- double value = signbit (__real__ x) ? 0.0 : HUGE_VAL;
-
- if (icls == FP_ZERO)
- {
- /* Imaginary part is 0.0. */
- __real__ retval = value;
- __imag__ retval = __imag__ x;
- }
- else
- {
- double sinix, cosix;
-
- if (__glibc_likely (fabs (__imag__ x) > DBL_MIN))
- {
- __sincos (__imag__ x, &sinix, &cosix);
- }
- else
- {
- sinix = __imag__ x;
- cosix = 1.0;
- }
-
- __real__ retval = __copysign (value, cosix);
- __imag__ retval = __copysign (value, sinix);
- }
- }
- else if (signbit (__real__ x) == 0)
- {
- __real__ retval = HUGE_VAL;
- __imag__ retval = __nan ("");
-
- if (icls == FP_INFINITE)
- feraiseexcept (FE_INVALID);
- }
- else
- {
- __real__ retval = 0.0;
- __imag__ retval = __copysign (0.0, __imag__ x);
- }
- }
- else
- {
- /* If the real part is NaN the result is NaN + iNaN unless the
- imaginary part is zero. */
- __real__ retval = __nan ("");
- if (icls == FP_ZERO)
- __imag__ retval = __imag__ x;
- else
- {
- __imag__ retval = __nan ("");
-
- if (rcls != FP_NAN || icls != FP_NAN)
- feraiseexcept (FE_INVALID);
- }
- }
-
- return retval;
-}
-weak_alias (__cexp, cexp)
-#ifdef NO_LONG_DOUBLE
-strong_alias (__cexp, __cexpl)
-weak_alias (__cexp, cexpl)
-#endif