1 files changed, 8 insertions, 0 deletions
diff --git a/lib/libm/ccosl.c b/lib/libm/ccosl.c
new file mode 100644
index 00000000..ee2a3fc0
--- /dev/null
+++ b/lib/libm/ccosl.c
@@ -0,0 +1,8 @@
+#include "__complex.h"
+
+long double complex ccosl(long double complex z)
+{
+	long double ch, sh;
+	cchshl(cimagl(z), &ch, &sh);
+	return cosl(creall(z)) * ch - (sinl(creall(z)) * sh) * I;
+}