extend cmath (some of the functions are dummy)

[libm] / src / cmath / casinl.c

diff --git a/src/cmath/casinl.c b/src/cmath/casinl.c
new file mode 100644 (file)
index 0000000..f9aa8de
--- /dev/null
+++ b/src/cmath/casinl.c
@@ -0,0 +1,20 @@
+#include "libm.h"
+
+#if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
+long double complex casinl(long double complex z)
+{
+       return casin(z);
+}
+#else
+// FIXME
+long double complex casinl(long double complex z)
+{
+       long double complex w;
+       long double x, y;
+
+       x = creall(z);
+       y = cimagl(z);
+       w = cpackl(1.0 - (x - y)*(x + y), -2.0*x*y);
+       return clogl(cpackl(-y, x) + csqrtl(w));
+}
+#endif