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Diffstat (limited to 'newlib/libm/complex/cacoshl.c')
-rwxr-xr-x | newlib/libm/complex/cacoshl.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/newlib/libm/complex/cacoshl.c b/newlib/libm/complex/cacoshl.c new file mode 100755 index 000000000..4e4e006b9 --- /dev/null +++ b/newlib/libm/complex/cacoshl.c @@ -0,0 +1,45 @@ +/* $NetBSD: cacoshl.c,v 1.1 2014/10/10 00:48:18 christos 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. + */ + +#include <complex.h> + +long double complex +cacoshl(long double complex z) +{ + long double complex w; + +#if 0 /* does not give the principal value */ + w = I * cacosl(z); +#else + w = clogl(z + csqrtl(z + 1) * csqrtl(z - 1)); +#endif + return w; +} |