1 files changed, 11 insertions, 0 deletions
diff --git a/lib/libm/clog10.c b/lib/libm/clog10.c
new file mode 100644
index 00000000..a1db1663
--- /dev/null
+++ b/lib/libm/clog10.c
@@ -0,0 +1,11 @@
+#include <math.h>
+#include "__complex.h"
+
+double complex clog10(double complex z)
+{
+	double p, rr;
+	rr = cabs(z);
+	p = log10(rr);
+	rr = atan2(cimag(z), creal(z)) * M_IVLN10;
+	return p + rr * (double complex)I;
+}