fcheck
#define Fcheck(t) ((t)->fcheck)
new_fieldtype(PTF_int fcheck, PTF_int ccheck)
if ((fcheck || ccheck) && Alloc(t, FIELDTYPE)) {
Fcheck(t) = fcheck;
PTF_int fcheck; /* field validation */
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN | F_SEEKABLE))
if (!fcheck(stream, F_OPEN | F_SEEKABLE))
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN))
if (!fcheck(stream, F_OPEN))