1 /* Return arc sine of complex __float128 value.
2 Copyright (C) 1997 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, write to the Free
18 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 #include "quadmath-imp.h"
25 casinq (__complex128 x
)
29 if (isnanq (__real__ x
) || isnanq (__imag__ x
))
31 if (__real__ x
== 0.0)
35 else if (isinfq (__real__ x
) || isinfq (__imag__ x
))
37 __real__ res
= nanq ("");
38 __imag__ res
= copysignq (HUGE_VALQ
, __imag__ x
);
42 __real__ res
= nanq ("");
43 __imag__ res
= nanq ("");
50 __real__ y
= -__imag__ x
;
51 __imag__ y
= __real__ x
;
55 __real__ res
= __imag__ y
;
56 __imag__ res
= -__real__ y
;