1 files changed, 9 insertions, 0 deletions
diff --git a/jni/ruby/missing/finite.c b/jni/ruby/missing/finite.c
new file mode 100644
index 0000000..ab76863
--- /dev/null
+++ b/jni/ruby/missing/finite.c
@@ -0,0 +1,9 @@
+/* public domain rewrite of finite(3) */
+
+#include "ruby/missing.h"
+
+int
+finite(double n)
+{
+    return !isnan(n) && !isinf(n);
+}