1 files changed, 10 insertions, 0 deletions
diff --git a/lib/libm/ccosf.c b/lib/libm/ccosf.c
new file mode 100644
index 00000000..8d4a8761
--- /dev/null
+++ b/lib/libm/ccosf.c
@@ -0,0 +1,10 @@
+#include "__complex.h"
+
+double complex ccos(double complex z)
+{
+	double ch, sh;
+
+	cchsh(cimag(z), &ch, &sh);
+
+	return cos(creal(z)) * ch - (sin(creal(z)) * sh) * I;
+}