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Diffstat (limited to 'math/s_csin_template.c')
| -rw-r--r-- | math/s_csin_template.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/math/s_csin_template.c b/math/s_csin_template.c deleted file mode 100644 index d52beb999b..0000000000 --- a/math/s_csin_template.c +++ /dev/null @@ -1,165 +0,0 @@ -/* Complex sine function for float types. - Copyright (C) 1997-2017 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> - -CFLOAT -M_DECL_FUNC (__csin) (CFLOAT x) -{ - CFLOAT retval; - int negate = signbit (__real__ x); - int rcls = fpclassify (__real__ x); - int icls = fpclassify (__imag__ x); - - __real__ x = M_FABS (__real__ x); - - if (__glibc_likely (icls >= FP_ZERO)) - { - /* Imaginary part is finite. */ - if (__glibc_likely (rcls >= FP_ZERO)) - { - /* Real part is finite. */ - const int t = (int) ((M_MAX_EXP - 1) * M_MLIT (M_LN2)); - FLOAT sinix, cosix; - - if (__glibc_likely (__real__ x > M_MIN)) - { - M_SINCOS (__real__ x, &sinix, &cosix); - } - else - { - sinix = __real__ x; - cosix = 1; - } - - if (negate) - sinix = -sinix; - - if (M_FABS (__imag__ x) > t) - { - FLOAT exp_t = M_EXP (t); - FLOAT ix = M_FABS (__imag__ x); - if (signbit (__imag__ x)) - cosix = -cosix; - ix -= t; - sinix *= exp_t / 2; - cosix *= exp_t / 2; - if (ix > t) - { - ix -= t; - sinix *= exp_t; - cosix *= exp_t; - } - if (ix > t) - { - /* Overflow (original imaginary part of x > 3t). */ - __real__ retval = M_MAX * sinix; - __imag__ retval = M_MAX * cosix; - } - else - { - FLOAT exp_val = M_EXP (ix); - __real__ retval = exp_val * sinix; - __imag__ retval = exp_val * cosix; - } - } - else - { - __real__ retval = M_COSH (__imag__ x) * sinix; - __imag__ retval = M_SINH (__imag__ x) * cosix; - } - - math_check_force_underflow_complex (retval); - } - else - { - if (icls == FP_ZERO) - { - /* Imaginary part is 0.0. */ - __real__ retval = __real__ x - __real__ x; - __imag__ retval = __imag__ x; - } - else - { - __real__ retval = M_NAN; - __imag__ retval = M_NAN; - - feraiseexcept (FE_INVALID); - } - } - } - else if (icls == FP_INFINITE) - { - /* Imaginary part is infinite. */ - if (rcls == FP_ZERO) - { - /* Real part is 0.0. */ - __real__ retval = M_COPYSIGN (0, negate ? -1 : 1); - __imag__ retval = __imag__ x; - } - else if (rcls > FP_ZERO) - { - /* Real part is finite. */ - FLOAT sinix, cosix; - - if (__glibc_likely (__real__ x > M_MIN)) - { - M_SINCOS (__real__ x, &sinix, &cosix); - } - else - { - sinix = __real__ x; - cosix = 1; - } - - __real__ retval = M_COPYSIGN (M_HUGE_VAL, sinix); - __imag__ retval = M_COPYSIGN (M_HUGE_VAL, cosix); - - if (negate) - __real__ retval = -__real__ retval; - if (signbit (__imag__ x)) - __imag__ retval = -__imag__ retval; - } - else - { - __real__ retval = __real__ x - __real__ x; - __imag__ retval = M_HUGE_VAL; - } - } - else - { - if (rcls == FP_ZERO) - __real__ retval = M_COPYSIGN (0, negate ? -1 : 1); - else - __real__ retval = M_NAN; - __imag__ retval = M_NAN; - } - - return retval; -} - -declare_mgen_alias (__csin, csin) - -#if M_LIBM_NEED_COMPAT (csin) -declare_mgen_libm_compat (__csin, csin) -#endif |