1 files changed, 0 insertions, 41 deletions
diff --git a/winsup/mingw/mingwex/complex/ctan.c b/winsup/mingw/mingwex/complex/ctan.c
deleted file mode 100644
index a479772a9..000000000
--- a/winsup/mingw/mingwex/complex/ctan.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/* ctan.c */
-
-/*
-   Contributed by Danny Smith
-   2003-10-20
-*/
-
-#include <math.h>
-#include <complex.h>
-#include <errno.h>
-
-
-/* ctan (x + I * y) = (sin (2 * x)  +  I * sinh(2 * y))
-		      / (cos (2 * x)  +  cosh (2 * y)) */
-
-double complex ctan (double complex Z)
-{
-  double complex Res;
-  double two_I = 2.0 * __imag__ Z;
-  double two_R = 2.0 * __real__ Z;
-  double denom = cos (two_R) + cosh (two_I);
-  if (denom == 0.0)
-    {
-      errno = ERANGE;
-      __real__ Res = HUGE_VAL;
-      __imag__ Res = HUGE_VAL;
-    }
-  else if (isinf (denom))
-    {
-      errno = ERANGE;
-      __real__ Res = 0.0;
-      __imag__ Res = two_I > 0 ? 1.0 : -1.0;
-    }
-  else
-    {
-      __real__ Res = sin (two_R) / denom;
-      __imag__ Res = sinh (two_I) / denom;
-    }
-  return Res;
-}
-