diff options
Diffstat (limited to 'REORG.TODO/math/s_cproj_template.c')
| -rw-r--r-- | REORG.TODO/math/s_cproj_template.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/REORG.TODO/math/s_cproj_template.c b/REORG.TODO/math/s_cproj_template.c new file mode 100644 index 0000000000..7f9e9f0fe5 --- /dev/null +++ b/REORG.TODO/math/s_cproj_template.c @@ -0,0 +1,45 @@ +/* Compute projection of complex float type value to Riemann sphere. + Copyright (C) 1997-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <complex.h> +#include <math.h> +#include <math_private.h> + + +CFLOAT +M_DECL_FUNC (__cproj) (CFLOAT x) +{ + if (isinf (__real__ x) || isinf (__imag__ x)) + { + CFLOAT res; + + __real__ res = INFINITY; + __imag__ res = M_COPYSIGN (0, __imag__ x); + + return res; + } + + return x; +} + +declare_mgen_alias (__cproj, cproj) + +#if M_LIBM_NEED_COMPAT (cproj) +declare_mgen_libm_compat (__cproj, cproj) +#endif |