1 files changed, 8 insertions, 0 deletions
diff --git a/lib/libm/cacosl.c b/lib/libm/cacosl.c
new file mode 100644
index 00000000..c56076b3
--- /dev/null
+++ b/lib/libm/cacosl.c
@@ -0,0 +1,8 @@
+#include <math.h>
+#include <complex.h>
+
+long double complex cacosl(long double complex z)
+{
+	long double complex w = casinl(z);
+	return (M_PI_2 - creall(w)) - cimagl(w) * I;
+}