#include "stdio_impl.h"
-/* This function will never be called if there is already data
- * buffered for reading. Thus we can get by with very few branches. */
+/* This function assumes it will never be called if there is already
+ * data buffered for reading. */
int __uflow(FILE *f)
{
- unsigned char c = EOF;
- if (f->rend || !__toread(f)) f->read(f, &c, 1);
- return c;
+ unsigned char c;
+ if (!__toread(f) && f->read(f, &c, 1)==1) return c;
+ return EOF;
}