initial cmath code and minor libm.h update

[libm] / src / cmath / clog.c

diff --git a/src/cmath/clog.c b/src/cmath/clog.c
new file mode 100644 (file)
index 0000000..4f8a428
--- /dev/null
+++ b/src/cmath/clog.c
@@ -0,0 +1,10 @@
+#include "libm.h"
+
+double complex clog(double complex z)
+{
+       double r, phi;
+
+       r = cabs(z);
+       phi = carg(z);
+       return cpack(log(r), phi);
+}