pushIor
pushIor(pVM, closeFiclFILE(ff));
pushIor(pVM, !unlink(filename));
pushIor(pVM, !rename(from, to));
pushIor(pVM, ud != -1);
pushIor(pVM, ud != -1);
pushIor(pVM, ferror(ff->f) == 0);
pushIor(pVM, ferror(ff->f) == 0);
pushIor(pVM, ferror(ff->f) == 0);
pushIor(pVM, fseek(ff->f, ud, SEEK_SET) == 0);
pushIor(pVM, fflush(ff->f) == 0);
pushIor(pVM, ftruncate(fileno(ff->f), ud) == 0);
pushIor(pVM, f != NULL);