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authorIan Moffett <ian@osmora.org>2024-03-07 17:28:52 -0500
committerIan Moffett <ian@osmora.org>2024-03-07 18:24:51 -0500
commitf5e48e94a2f4d4bbd6e5628c7f2afafc6dbcc459 (patch)
tree93b156621dc0303816b37f60ba88051b702d92f6 /lib/mlibc/options/ansi/generic/complex/catan.c
parentbd5969fc876a10b18613302db7087ef3c40f18e1 (diff)
build: Build mlibc + add distclean target
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'lib/mlibc/options/ansi/generic/complex/catan.c')
-rw-r--r--lib/mlibc/options/ansi/generic/complex/catan.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/lib/mlibc/options/ansi/generic/complex/catan.c b/lib/mlibc/options/ansi/generic/complex/catan.c
deleted file mode 100644
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--- a/lib/mlibc/options/ansi/generic/complex/catan.c
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@@ -1,130 +0,0 @@
-/* $NetBSD: catan.c,v 1.1 2007/08/20 16:01:32 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
- <<catan>>, <<catanf>>---complex arc tangent
-
-INDEX
- catan
-INDEX
- catanf
-
-ANSI_SYNOPSIS
- #include <complex.h>
- double complex catan(double complex <[z]>);
- float complex catanf(float complex <[z]>);
-
-
-DESCRIPTION
- @ifnottex
- These functions compute the complex arc tangent of <[z]>,
- with branch cuts outside the interval [-i, +i] along the
- imaginary axis.
- @end ifnottex
- @tex
- These functions compute the complex arc tangent of <[z]>,
- with branch cuts outside the interval [$-i$, $+i$] along the
- imaginary axis.
- @end tex
-
- <<catanf>> is identical to <<catan>>, except that it performs
- its calculations on <<floats complex>>.
-
-RETURNS
- @ifnottex
- These functions return the complex arc tangent value, in the range
- of a strip mathematically unbounded along the imaginary axis
- and in the interval [-pi/2, +pi/2] along the real axis.
- @end ifnottex
- @tex
- These functions return the complex arc tangent, in the range
- of a strip mathematically unbounded along the imaginary axis
- and in the interval [$-\pi/2$, $+\pi/2$] along the real axis.
- @end tex
-
-PORTABILITY
- <<catan>> and <<catanf>> are ISO C99
-
-QUICKREF
- <<catan>> and <<catanf>> are ISO C99
-
-*/
-
-
-#include <complex.h>
-#include <math.h>
-#include "cephes_subr.h"
-
-#ifdef __weak_alias
-__weak_alias(catan, _catan)
-#endif
-
-double complex
-catan(double complex z)
-{
- double complex w;
- double a, t, x, x2, y;
-
- x = creal(z);
- y = cimag(z);
-
- if ((x == 0.0) && (y > 1.0))
- goto ovrf;
-
- x2 = x * x;
- a = 1.0 - x2 - (y * y);
- if (a == 0.0)
- goto ovrf;
-
- t = 0.5 * atan2(2.0 * x, a);
- w = __mlibc_redupi(t);
-
- t = y - 1.0;
- a = x2 + (t * t);
- if (a == 0.0)
- goto ovrf;
-
- t = y + 1.0;
- a = (x2 + (t * t))/a;
- w = w + (0.25 * log(a)) * I;
- return w;
-
-ovrf:
-#if 0
- mtherr ("catan", OVERFLOW);
-#endif
- w = HUGE_VAL + HUGE_VAL * I;
- return w;
-}