diff options
author | Ian Moffett <ian@osmora.org> | 2024-03-07 17:28:52 -0500 |
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committer | Ian Moffett <ian@osmora.org> | 2024-03-07 18:24:51 -0500 |
commit | f5e48e94a2f4d4bbd6e5628c7f2afafc6dbcc459 (patch) | |
tree | 93b156621dc0303816b37f60ba88051b702d92f6 /lib/mlibc/options/ansi/generic/complex/cproj.c | |
parent | bd5969fc876a10b18613302db7087ef3c40f18e1 (diff) |
build: Build mlibc + add distclean target
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'lib/mlibc/options/ansi/generic/complex/cproj.c')
-rw-r--r-- | lib/mlibc/options/ansi/generic/complex/cproj.c | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/lib/mlibc/options/ansi/generic/complex/cproj.c b/lib/mlibc/options/ansi/generic/complex/cproj.c deleted file mode 100644 index 0ed50f2..0000000 --- a/lib/mlibc/options/ansi/generic/complex/cproj.c +++ /dev/null @@ -1,105 +0,0 @@ -/* $NetBSD: cproj.c,v 1.3 2010/09/20 17:51:38 christos Exp $ */ - -/*- - * Copyright (c) 2010 The NetBSD Foundation, Inc. - * All rights reserved. - * - * 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 - <<cproj>>, <<cprojf>>--- Riemann sphere projection - -INDEX - cproj -INDEX - cprojf - -ANSI_SYNOPSIS - #include <complex.h> - double complex cproj(double complex <[z]>); - float complex cprojf(float complex <[z]>); - - -DESCRIPTION - These functions compute a projection of <[z]> onto the Riemann - sphere: <[z]> projects to <[z]> except that all complex infinities - (even those with one infinite part and one NaN part) project - to positive infinity on the real axis. If <[z]> has an infinite part, - then <<cproj>>(<[z]>) is equivalent to - - INFINITY + I * copysign(0.0, cimag(z)) - - <<cprojf>> is identical to <<cproj>>, except that it performs - its calculations on <<floats complex>>. - -RETURNS - The cproj functions return the value of the projection onto - the Riemann sphere. - -PORTABILITY - <<cproj>> and <<cprojf>> are ISO C99 - -QUICKREF - <<cproj>> and <<cprojf>> are ISO C99 - -*/ - -/*__RCSID("$NetBSD: cproj.c,v 1.3 2010/09/20 17:51:38 christos Exp $"); */ - -#include <complex.h> -#include <math.h> - -#include "fdlibm.h" - -/* - * cproj(double complex z) - * - * These functions return the value of the projection (not stereographic!) - * onto the Riemann sphere. - * - * z projects to z, except that all complex infinities (even those with one - * infinite part and one NaN part) project to positive infinity on the real axis. - * If z has an infinite part, then cproj(z) shall be equivalent to: - * - * INFINITY + I * copysign(0.0, cimag(z)) - */ -double complex -cproj(double complex z) -{ - double_complex w = { .z = z }; - - if (isinf(creal(z)) || isinf(cimag(z))) { -#ifdef __INFINITY - REAL_PART(w) = __INFINITY; -#else - REAL_PART(w) = INFINITY; -#endif - IMAG_PART(w) = copysign(0.0, cimag(z)); - } - - return (w.z); -} |