src/stdio/__uflow.c

   1 #include "stdio_impl.h"
   2
   3 /* This function assumes it will never be called if there is already
   4  * data buffered for reading. */
   5
   6 int __uflow(FILE *f)
   7 {
   8         unsigned char c;
   9         if (!__toread(f) && f->read(f, &c, 1)==1) return c;
  10         return EOF;
  11 }