1 files changed, 13 insertions, 0 deletions
diff --git a/src/complex/ccosl.c b/src/complex/ccosl.c
new file mode 100644
index 00000000..e37825a9
--- /dev/null
+++ b/src/complex/ccosl.c
@@ -0,0 +1,13 @@
+#include "libm.h"
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double complex ccosl(long double complex z)
+{
+	return ccos(z);
+}
+#else
+long double complex ccosl(long double complex z)
+{
+	return ccoshl(cpackl(-cimagl(z), creall(z)));
+}
+#endif