mirror of git://sourceware.org/git/glibc.git
Prepare to convert _Complex cosine functions
This patch has no function changes, except to ensure the git history correctly tracks the changes to convert the double version of these functions into a templated version.
This commit is contained in:
Paul E. Murphy
parent
466929465e
commit
281f5073e5
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@ -1,3 +1,10 @@
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2016-08-19 Paul E. Murphy <murphyp@linux.vnet.ibm.com>
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* s_cacos_template.c: Copy of s_cacos.c.
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* s_cacosh_template.c: Copy of s_cacosh.c.
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* s_ccos_template.c: Copy of s_ccos.c.
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* s_ccosh_template.c: Copy of s_ccosh.c.
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2016-08-19 Paul E. Murphy <murphyp@linux.vnet.ibm.com>
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* stdlib/tst-strtod-round-skeleton.c:
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@ -0,0 +1,58 @@
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/* Return cosine of complex double value.
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Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <complex.h>
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#include <math.h>
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__complex__ double
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__cacos (__complex__ double x)
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{
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__complex__ double y;
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__complex__ double res;
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int rcls = fpclassify (__real__ x);
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int icls = fpclassify (__imag__ x);
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if (rcls <= FP_INFINITE || icls <= FP_INFINITE
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|| (rcls == FP_ZERO && icls == FP_ZERO))
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{
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y = __casin (x);
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__real__ res = (double) M_PI_2 - __real__ y;
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if (__real__ res == 0.0)
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__real__ res = 0.0;
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__imag__ res = -__imag__ y;
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}
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else
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{
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__real__ y = -__imag__ x;
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__imag__ y = __real__ x;
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y = __kernel_casinh (y, 1);
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__real__ res = __imag__ y;
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__imag__ res = __real__ y;
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}
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return res;
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}
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weak_alias (__cacos, cacos)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__cacos, __cacosl)
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weak_alias (__cacos, cacosl)
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#endif
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@ -0,0 +1,94 @@
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/* Return arc hyperbole cosine for double value.
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Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <complex.h>
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#include <math.h>
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#include <math_private.h>
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__complex__ double
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__cacosh (__complex__ double x)
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{
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__complex__ double res;
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int rcls = fpclassify (__real__ x);
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int icls = fpclassify (__imag__ x);
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if (rcls <= FP_INFINITE || icls <= FP_INFINITE)
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{
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if (icls == FP_INFINITE)
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{
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__real__ res = HUGE_VAL;
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if (rcls == FP_NAN)
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__imag__ res = __nan ("");
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else
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__imag__ res = __copysign ((rcls == FP_INFINITE
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? (__real__ x < 0.0
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? M_PI - M_PI_4 : M_PI_4)
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: M_PI_2), __imag__ x);
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}
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else if (rcls == FP_INFINITE)
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{
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__real__ res = HUGE_VAL;
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if (icls >= FP_ZERO)
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__imag__ res = __copysign (signbit (__real__ x) ? M_PI : 0.0,
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__imag__ x);
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else
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__imag__ res = __nan ("");
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}
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else
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{
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__real__ res = __nan ("");
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__imag__ res = __nan ("");
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}
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}
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else if (rcls == FP_ZERO && icls == FP_ZERO)
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{
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__real__ res = 0.0;
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__imag__ res = __copysign (M_PI_2, __imag__ x);
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}
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else
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{
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__complex__ double y;
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__real__ y = -__imag__ x;
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__imag__ y = __real__ x;
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y = __kernel_casinh (y, 1);
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if (signbit (__imag__ x))
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{
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__real__ res = __real__ y;
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__imag__ res = -__imag__ y;
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}
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else
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{
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__real__ res = -__real__ y;
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__imag__ res = __imag__ y;
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}
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}
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return res;
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}
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weak_alias (__cacosh, cacosh)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__cacosh, __cacoshl)
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weak_alias (__cacosh, cacoshl)
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#endif
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@ -0,0 +1,40 @@
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/* Return cosine of complex double value.
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Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <complex.h>
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#include <fenv.h>
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#include <math.h>
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#include <math_private.h>
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__complex__ double
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__ccos (__complex__ double x)
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{
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__complex__ double y;
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__real__ y = -__imag__ x;
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__imag__ y = __real__ x;
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return __ccosh (y);
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}
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weak_alias (__ccos, ccos)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__ccos, __ccosl)
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weak_alias (__ccos, ccosl)
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#endif
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@ -0,0 +1,147 @@
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/* Complex cosine hyperbole function for double.
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Copyright (C) 1997-2016 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <complex.h>
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#include <fenv.h>
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#include <math.h>
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#include <math_private.h>
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#include <float.h>
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__complex__ double
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__ccosh (__complex__ double x)
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{
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__complex__ double retval;
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int rcls = fpclassify (__real__ x);
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int icls = fpclassify (__imag__ x);
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if (__glibc_likely (rcls >= FP_ZERO))
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{
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/* Real part is finite. */
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if (__glibc_likely (icls >= FP_ZERO))
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{
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/* Imaginary part is finite. */
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const int t = (int) ((DBL_MAX_EXP - 1) * M_LN2);
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double sinix, cosix;
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if (__glibc_likely (fabs (__imag__ x) > DBL_MIN))
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{
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__sincos (__imag__ x, &sinix, &cosix);
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}
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else
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{
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sinix = __imag__ x;
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cosix = 1.0;
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}
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if (fabs (__real__ x) > t)
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{
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double exp_t = __ieee754_exp (t);
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double rx = fabs (__real__ x);
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if (signbit (__real__ x))
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sinix = -sinix;
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rx -= t;
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sinix *= exp_t / 2.0;
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cosix *= exp_t / 2.0;
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if (rx > t)
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{
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rx -= t;
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sinix *= exp_t;
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cosix *= exp_t;
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}
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if (rx > t)
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{
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/* Overflow (original real part of x > 3t). */
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__real__ retval = DBL_MAX * cosix;
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__imag__ retval = DBL_MAX * sinix;
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}
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else
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{
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double exp_val = __ieee754_exp (rx);
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__real__ retval = exp_val * cosix;
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__imag__ retval = exp_val * sinix;
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}
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}
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else
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{
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__real__ retval = __ieee754_cosh (__real__ x) * cosix;
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__imag__ retval = __ieee754_sinh (__real__ x) * sinix;
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}
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math_check_force_underflow_complex (retval);
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}
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else
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{
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__imag__ retval = __real__ x == 0.0 ? 0.0 : __nan ("");
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__real__ retval = __nan ("") + __nan ("");
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if (icls == FP_INFINITE)
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feraiseexcept (FE_INVALID);
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}
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}
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else if (rcls == FP_INFINITE)
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{
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/* Real part is infinite. */
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if (__glibc_likely (icls > FP_ZERO))
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{
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/* Imaginary part is finite. */
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double sinix, cosix;
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if (__glibc_likely (fabs (__imag__ x) > DBL_MIN))
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{
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__sincos (__imag__ x, &sinix, &cosix);
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}
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else
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{
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sinix = __imag__ x;
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cosix = 1.0;
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}
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__real__ retval = __copysign (HUGE_VAL, cosix);
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__imag__ retval = (__copysign (HUGE_VAL, sinix)
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* __copysign (1.0, __real__ x));
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}
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else if (icls == FP_ZERO)
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{
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/* Imaginary part is 0.0. */
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__real__ retval = HUGE_VAL;
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__imag__ retval = __imag__ x * __copysign (1.0, __real__ x);
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}
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else
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{
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/* The addition raises the invalid exception. */
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__real__ retval = HUGE_VAL;
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__imag__ retval = __nan ("") + __nan ("");
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if (icls == FP_INFINITE)
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feraiseexcept (FE_INVALID);
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}
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}
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else
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{
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__real__ retval = __nan ("");
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__imag__ retval = __imag__ x == 0.0 ? __imag__ x : __nan ("");
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}
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return retval;
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}
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weak_alias (__ccosh, ccosh)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__ccosh, __ccoshl)
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weak_alias (__ccosh, ccoshl)
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#endif
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