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authorTobias Burnus <burnus@net-b.de>2012-11-01 17:14:42 +0100
committerTobias Burnus <burnus@gcc.gnu.org>2012-11-01 17:14:42 +0100
commitf029f4be17d5b897de8abc53d76cf6c2a6239dde (patch)
tree2afc010e7cab7a1e26bbcd9d5626478574f67e38 /libquadmath/math/csinhq.c
parent621cf8af1d1f118d2e2bffb9b753d28ab9777479 (diff)
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Makefile.am (libquadmath_la_SOURCES): Add new math/* files.
2012-11-01 Tobias Burnus <burnus@net-b.de> * Makefile.am (libquadmath_la_SOURCES): Add new math/* files. * Makefile.in: Regenerated. * math/acoshq.c: Update comment. * math/acosq.c: Ditto. * math/asinhq.c: Ditto. * math/asinq.c: Ditto. * math/atan2q.c: Ditto. * math/atanhq.c: Ditto. * math/ceilq.c: Ditto. * math/copysignq.c: Ditto. * math/cosq.c: Ditto. * math/coshq.c: Ditto. * math/erfq.c: Ditto. * math/fabsq.c: Ditto. * math/finiteq.c: Ditto. * math/floorq.c: Ditto. * math/fmodq.c: Ditto. * math/frexpq.c: Ditto. * math/isnanq.c: Ditto. * math/j0q.c: Ditto. * math/j1q.c: Ditto. * math/ldexpq.c: Ditto. * math/llroundq.c: Ditto. * math/log10q.c: Ditto. * math/log1pq.c: Ditto. * math/log2q.c: Ditto. * math/logq.c: Ditto. * math/lroundq.c: Ditto. * math/modfq.c: Ditto. * math/nextafterq.c: Ditto. * math/powq.c: Ditto. * math/rem_pio2q.c: Ditto. * math/remainderq.c: Ditto. * math/rintq.c: Ditto. * math/roundq.c: Ditto. * math/scalblnq.c: Ditto. * math/scalbnq.c: Ditto. * math/sincosq_kernel.c: Ditto. * math/sinq.c: Ditto. * math/tanq.c: Ditto. * math/expq.c: Ditto. (__expq_table, expq): Renamed local array from __expl_table. * math/cosq_kernel.c (__quadmath_kernel_cosq): Fix sign * handling. * math/cacoshq.c: Changes from GLIBC; fix returned sign. * math/casinhq.c: Changes from GLIBC to fix special-case. * math/cbrtq.c: Use modified GLIBC version. * math/complex.c (ccoshd, cexpq, clog10q, clogq, csinhq, csinq, ctanhq, ctanq): Moved to separates files. (mult_c128, div_c128): Removed no longer needed functions. (cexpiq): Call sincosq instead of sinq and cosq. (cosq): Call cosh(-re,im) instead of cosq/sinq/sinh/cosh. * math/ccoshq.c (ccoshq): New file, moved from complex.c and modified based on GLIBC. * math/cexpq.c (cexp): Ditto. * math/clog10q.c (clog10q): Ditto. * math/clogq.c (clogq): Ditto. * math/csinhq.c: Ditto. * math/csinq.c: Ditto. * math/csqrtq.c: Ditto. * math/ctanhq.c: Ditto. * math/ctanq.c: Ditto. * math/fmaq.c (fmaq): Port TININESS_AFTER_ROUNDING handling from GLIBC. * math/ilogbq.c (ilogbq): Add errno = EDOM handling. * math/isinf_nsq.c (__quadmath_isinf_nsq): New file, ported from GLIBC. * math/lgammaq.c (lgammaq): Add signgam handling. * math/sinhq.c (sinhq): Fix sign handling. * math/sinq_kernel.c (__quadmath_kernel_sinq): Ditto. * math/tgammaq.c (tgammaq): Ditto. * math/x2y2m1q.c: New file. * quadmath-imp.h (TININESS_AFTER_ROUNDING): New define. (__quadmath_x2y2m1q, __quadmath_isinf_nsq): New prototypes. From-SVN: r193063
Diffstat (limited to 'libquadmath/math/csinhq.c')
-rw-r--r--libquadmath/math/csinhq.c166
1 files changed, 166 insertions, 0 deletions
diff --git a/libquadmath/math/csinhq.c b/libquadmath/math/csinhq.c
new file mode 100644
index 0000000..c16d576
--- /dev/null
+++ b/libquadmath/math/csinhq.c
@@ -0,0 +1,166 @@
+/* Complex sine hyperbole function for complex __float128.
+ Copyright (C) 1997-2012 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 "quadmath-imp.h"
+
+#ifdef HAVE_FENV_H
+# include <fenv.h>
+#endif
+
+
+__complex128
+csinhq (__complex128 x)
+{
+ __complex128 retval;
+ int negate = signbitq (__real__ x);
+ int rcls = fpclassifyq (__real__ x);
+ int icls = fpclassifyq (__imag__ x);
+
+ __real__ x = fabsq (__real__ x);
+
+ if (__builtin_expect (rcls >= QUADFP_ZERO, 1))
+ {
+ /* Real part is finite. */
+ if (__builtin_expect (icls >= QUADFP_ZERO, 1))
+ {
+ /* Imaginary part is finite. */
+ const int t = (int) ((FLT128_MAX_EXP - 1) * M_LN2q);
+ __float128 sinix, cosix;
+
+ if (__builtin_expect (icls != QUADFP_SUBNORMAL, 1))
+ {
+ sincosq (__imag__ x, &sinix, &cosix);
+ }
+ else
+ {
+ sinix = __imag__ x;
+ cosix = 1.0Q;
+ }
+
+ if (fabsq (__real__ x) > t)
+ {
+ __float128 exp_t = expq (t);
+ __float128 rx = fabsq (__real__ x);
+ if (signbitq (__real__ x))
+ cosix = -cosix;
+ rx -= t;
+ sinix *= exp_t / 2.0Q;
+ cosix *= exp_t / 2.0Q;
+ if (rx > t)
+ {
+ rx -= t;
+ sinix *= exp_t;
+ cosix *= exp_t;
+ }
+ if (rx > t)
+ {
+ /* Overflow (original real part of x > 3t). */
+ __real__ retval = FLT128_MAX * cosix;
+ __imag__ retval = FLT128_MAX * sinix;
+ }
+ else
+ {
+ __float128 exp_val = expq (rx);
+ __real__ retval = exp_val * cosix;
+ __imag__ retval = exp_val * sinix;
+ }
+ }
+ else
+ {
+ __real__ retval = sinhq (__real__ x) * cosix;
+ __imag__ retval = coshq (__real__ x) * sinix;
+ }
+
+ if (negate)
+ __real__ retval = -__real__ retval;
+ }
+ else
+ {
+ if (rcls == QUADFP_ZERO)
+ {
+ /* Real part is 0.0. */
+ __real__ retval = copysignq (0.0Q, negate ? -1.0Q : 1.0Q);
+ __imag__ retval = nanq ("") + nanq ("");
+
+#ifdef HAVE_FENV_H
+ if (icls == QUADFP_INFINITE)
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ else
+ {
+ __real__ retval = nanq ("");
+ __imag__ retval = nanq ("");
+
+#ifdef HAVE_FENV_H
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ }
+ }
+ else if (rcls == QUADFP_INFINITE)
+ {
+ /* Real part is infinite. */
+ if (__builtin_expect (icls > QUADFP_ZERO, 1))
+ {
+ /* Imaginary part is finite. */
+ __float128 sinix, cosix;
+
+ if (__builtin_expect (icls != QUADFP_SUBNORMAL, 1))
+ {
+ sincosq (__imag__ x, &sinix, &cosix);
+ }
+ else
+ {
+ sinix = __imag__ x;
+ cosix = 1.0;
+ }
+
+ __real__ retval = copysignq (HUGE_VALQ, cosix);
+ __imag__ retval = copysignq (HUGE_VALQ, sinix);
+
+ if (negate)
+ __real__ retval = -__real__ retval;
+ }
+ else if (icls == QUADFP_ZERO)
+ {
+ /* Imaginary part is 0.0. */
+ __real__ retval = negate ? -HUGE_VALQ : HUGE_VALQ;
+ __imag__ retval = __imag__ x;
+ }
+ else
+ {
+ /* The addition raises the invalid exception. */
+ __real__ retval = HUGE_VALQ;
+ __imag__ retval = nanq ("") + nanq ("");
+
+#ifdef HAVE_FENV_H
+ if (icls == QUADFP_INFINITE)
+ feraiseexcept (FE_INVALID);
+#endif
+ }
+ }
+ else
+ {
+ __real__ retval = nanq ("");
+ __imag__ retval = __imag__ x == 0.0Q ? __imag__ x : nanq ("");
+ }
+
+ return retval;
+}