1 files changed, 23 insertions, 0 deletions
diff --git a/winsup/mingw/mingwex/complex/casinhf.c b/winsup/mingw/mingwex/complex/casinhf.c
new file mode 100755
index 000000000..421cd3a96
--- /dev/null
+++ b/winsup/mingw/mingwex/complex/casinhf.c
@@ -0,0 +1,23 @@
+/*
+   casinhf.c
+   Contributed by Danny Smith
+   2004-12-24
+*/
+
+#include <math.h>
+#include <complex.h>
+
+/* casinh (z) = -I casin (I * z) */
+
+float complex casinhf (float complex Z)
+{
+  float complex Tmp;
+  float complex Res;
+
+  __real__ Tmp = - __imag__ Z;
+  __imag__ Tmp =   __real__ Z;
+  Tmp = casinf (Tmp);
+  __real__ Res =   __imag__ Tmp;
+  __imag__ Res = - __real__ Tmp;
+  return Res;
+}