1516 #define VTRACE(v) printf v  macro
1518 #define VTRACE(v) do {} while(0)  /* do nothing */  macro
1522 #define FAIL do { VTRACE(("FAIL: %d\n", __LINE__)); return 0; } while (0)
1527         VTRACE(("%p: ", code));                         \
1530         VTRACE(("%lu (op)\n", (unsigned long)op));      \
1534         VTRACE(("%p= ", code));                         \
1537         VTRACE(("%lu (arg)\n", (unsigned long)arg));    \
1541         VTRACE(("%p= ", code));                         \
1544         VTRACE(("%lu (skip to %p)\n",                   \
1646     VTRACE(("code=%p, end=%p\n", code, end));  in _validate_inner()
1661                 VTRACE(("arg=%d, groups=%d\n", (int)arg, (int)groups));  in _validate_inner()
1776                   VTRACE(("code=%p, newcode=%p\n", code, newcode));  in _validate_inner()
1892                 VTRACE(("both then and else parts present\n"));  in _validate_inner()
1902                 VTRACE(("only a then part present\n"));  in _validate_inner()
1931     VTRACE(("okay\n"));  in _validate_inner()
1953         VTRACE(("Success!\n"));  in _validate()