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* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
/* Compute projection of complex float type value to Riemann sphere.
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Copyright (C) 1997-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <complex.h>
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#include <math.h>
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#include <math_private.h>
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CFLOAT
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M_DECL_FUNC (__cproj) (CFLOAT x)
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{
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if (isinf (__real__ x) || isinf (__imag__ x))
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{
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CFLOAT res;
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__real__ res = INFINITY;
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__imag__ res = M_COPYSIGN (0, __imag__ x);
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return res;
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}
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return x;
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}
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declare_mgen_alias (__cproj, cproj)
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