diff options
author | thevenyp <thevenyp@211d60ee-9f03-0410-a15a-8952a2c7a4e4> | 2009-03-17 17:50:22 +0000 |
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committer | thevenyp <thevenyp@211d60ee-9f03-0410-a15a-8952a2c7a4e4> | 2009-03-17 17:50:22 +0000 |
commit | aa5cf4f74446601e854f3841a0aab74e9fa229f5 (patch) | |
tree | cd05037f157f0df5b14c0c45873128960d3c8be2 /src/proj.c | |
parent | 9dd0f23159d01367a93776126415607fd52decd9 (diff) | |
download | mpc-aa5cf4f74446601e854f3841a0aab74e9fa229f5.tar.gz |
revert to UNIX format (r457 changed every file to DOS format).
git-svn-id: svn://scm.gforge.inria.fr/svn/mpc/trunk@459 211d60ee-9f03-0410-a15a-8952a2c7a4e4
Diffstat (limited to 'src/proj.c')
-rw-r--r-- | src/proj.c | 88 |
1 files changed, 44 insertions, 44 deletions
@@ -1,44 +1,44 @@ -/* mpc_proj -- projection of a complex number onto the Riemann sphere.
-
-Copyright (C) 2008, 2009 Philippe Th\'eveny
-
-This file is part of the MPC Library.
-
-The MPC 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 MPC 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 MPC Library; see the file COPYING.LIB. If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
-MA 02111-1307, USA. */
-
-#include "mpc-impl.h"
-
-int
-mpc_proj (mpc_ptr a, mpc_srcptr b, mpc_rnd_t rnd)
-{
- if (MPC_IS_INF (b))
- {
- /* infinities projects to +Inf +i* copysign(0.0, cimag(z)) */
- int inex;
-
- mpfr_set_inf (MPC_RE (a), +1);
- inex = mpfr_set_ui (MPC_IM (a), 0, MPC_RND_IM (rnd));
- if (mpfr_signbit (MPC_IM (b)))
- {
- mpc_conj (a, a, MPC_RNDNN);
- inex = -inex;
- }
-
- return MPC_INEX (0, inex);
- }
- else
- return mpc_set (a, b, rnd);
-}
+/* mpc_proj -- projection of a complex number onto the Riemann sphere. + +Copyright (C) 2008, 2009 Philippe Th\'eveny + +This file is part of the MPC Library. + +The MPC 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 MPC 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 MPC Library; see the file COPYING.LIB. If not, write to +the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +MA 02111-1307, USA. */ + +#include "mpc-impl.h" + +int +mpc_proj (mpc_ptr a, mpc_srcptr b, mpc_rnd_t rnd) +{ + if (MPC_IS_INF (b)) + { + /* infinities projects to +Inf +i* copysign(0.0, cimag(z)) */ + int inex; + + mpfr_set_inf (MPC_RE (a), +1); + inex = mpfr_set_ui (MPC_IM (a), 0, MPC_RND_IM (rnd)); + if (mpfr_signbit (MPC_IM (b))) + { + mpc_conj (a, a, MPC_RNDNN); + inex = -inex; + } + + return MPC_INEX (0, inex); + } + else + return mpc_set (a, b, rnd); +} |