1 files changed, 0 insertions, 31 deletions
diff --git a/missing/isnan.c b/missing/isnan.c
deleted file mode 100644
index df424c2e61..0000000000
--- a/missing/isnan.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* public domain rewrite of isnan(3) */
-
-#ifdef _MSC_VER
-
-#include <float.h>
-int
-isnan(n)
-  double n;
-{
-  return _isnan(n);
-}
-
-#else
-
-static int double_ne();
-
-int
-isnan(n)
-  double n;
-{
-  return double_ne(n, n);
-}
-
-static
-int
-double_ne(n1, n2)
-  double n1, n2;
-{
-  return n1 != n2;
-}
-#endif