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-rw-r--r--lib/mlibc/options/ansi/generic/complex/cacos.c99
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diff --git a/lib/mlibc/options/ansi/generic/complex/cacos.c b/lib/mlibc/options/ansi/generic/complex/cacos.c
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--- a/lib/mlibc/options/ansi/generic/complex/cacos.c
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@@ -1,99 +0,0 @@
-/* $NetBSD: cacos.c,v 1.1 2007/08/20 16:01:30 drochner Exp $ */
-
-/*-
- * Copyright (c) 2007 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software written by Stephen L. Moshier.
- * It is redistributed by the NetBSD Foundation by permission of the author.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
- * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- * imported and modified include for newlib 2010/10/03
- * Marco Atzeri <marco_atzeri@yahoo.it>
- */
-
-/*
-FUNCTION
- <<cacos>>, <<cacosf>>---complex arc cosine
-
-INDEX
- cacos
-INDEX
- cacosf
-
-ANSI_SYNOPSIS
- #include <complex.h>
- double complex cacos(double complex <[z]>);
- float complex cacosf(float complex <[z]>);
-
-
-DESCRIPTION
- These functions compute the complex arc cosine of <[z]>,
- with branch cuts outside the interval [-1, +1] along the real axis.
-
- <<cacosf>> is identical to <<cacos>>, except that it performs
- its calculations on <<floats complex>>.
-
-RETURNS
- @ifnottex
- These functions return the complex arc cosine value, in the range
- of a strip mathematically unbounded along the imaginary axis
- and in the interval [0, pi] along the real axis.
- @end ifnottex
- @tex
- These functions return the complex arc cosine value, in the range
- of a strip mathematically unbounded along the imaginary axis
- and in the interval [<<0>>, $\pi$] along the real axis.
- @end tex
-
-PORTABILITY
- <<cacos>> and <<cacosf>> are ISO C99
-
-QUICKREF
- <<cacos>> and <<cacosf>> are ISO C99
-
-*/
-
-#include <complex.h>
-#include <math.h>
-
-double complex
-cacos(double complex z)
-{
- double complex w;
-
- /* FIXME: The original NetBSD code results in an ICE when trying to
- build this function on ARM/Thumb using gcc 4.5.1. For now we use
- a hopefully temporary workaround. */
-#if 0
- w = casin(z);
- w = (M_PI_2 - creal(w)) - cimag(w) * I;
-#else
- double complex tmp0, tmp1;
-
- tmp0 = casin(z);
- tmp1 = M_PI_2 - creal(tmp0);
- w = tmp1 - (cimag(tmp0) * I);
-#endif
- return w;
-}