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Diffstat (limited to 'libm/carg.c')
-rw-r--r-- | libm/carg.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/libm/carg.c b/libm/carg.c new file mode 100644 index 000000000..7641d5dfe --- /dev/null +++ b/libm/carg.c @@ -0,0 +1,33 @@ +/* Compute argument of complex double value. + Copyright (C) 1997 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <complex.h> +#include <math.h> + +libm_hidden_proto(atan2) +libm_hidden_proto(carg) + +double +carg (__complex__ double x) +{ + return atan2 (__imag__ x, __real__ x); +} + +libm_hidden_def(carg) |