_Buf               54 maint/gnulib/lib/fpending.c   return (fp->_Mode & 0x2000 /*_MWRITE*/ ? fp->_Next - fp->_Buf : 0);
_Buf              122 maint/gnulib/lib/fpurge.c     fp->_Next = fp->_Buf;
_Buf               93 maint/gnulib/lib/fseeko.c   if ((fp->_Mode & 0x2000 /* _MWRITE */ ? fp->_Next == fp->_Buf : fp->_Next == fp->_Rend)