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authorMike Frysinger <vapier@gentoo.org>2007-04-02 20:52:18 +0000
committerMike Frysinger <vapier@gentoo.org>2007-04-02 20:52:18 +0000
commit6ec72c25adc5231d9c12672c8da287db234e55c3 (patch)
tree860a5b5481b034529861be763c035b5a155a9d76 /libm/carg.c
parentbecdcc75f97d3d4480b9317633f0a59334a15a94 (diff)
implement carg
Diffstat (limited to 'libm/carg.c')
-rw-r--r--libm/carg.c33
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)