1 files changed, 11 insertions, 0 deletions
diff --git a/src/stdio/__uflow.c b/src/stdio/__uflow.c
new file mode 100644
index 0000000..2a88bca
--- /dev/null
+++ b/src/stdio/__uflow.c
@@ -0,0 +1,11 @@
+#include "stdio_impl.h"
+
+/* This function assumes it will never be called if there is already
+ * data buffered for reading. */
+
+int __uflow(FILE *f)
+{
+	unsigned char c;
+	if (!__toread(f) && f->read(f, &c, 1)==1) return c;
+	return EOF;
+}