WRITABLE          130 ext/stringio/stringio.c #define WRITABLE(strio) STRIO_MODE_SET_P(strio, WRITABLE)
WRITABLE          148 ext/stringio/stringio.c     if (!WRITABLE(strio)) {
WRITABLE          447 ext/stringio/stringio.c     if (WRITABLE(self)) return Qfalse;
WRITABLE          524 ext/stringio/stringio.c     if (WRITABLE(self)) {
WRITABLE         1521 ext/stringio/stringio.c     if (WRITABLE(self)) {