initial cmath code and minor libm.h update

[libm] / src / cmath / carg.c

diff --git a/src/cmath/carg.c b/src/cmath/carg.c
new file mode 100644 (file)
index 0000000..d2d1b46
--- /dev/null
+++ b/src/cmath/carg.c
@@ -0,0 +1,6 @@
+#include "libm.h"
+
+double carg(double complex z)
+{
+       return atan2(cimag(z), creal(z));
+}