833     rettv->vval.v_number = -1;  in f_delete()
856 	rettv->vval.v_number = mch_remove(name) == 0 ? 0 : -1;  in f_delete()
859 	rettv->vval.v_number = mch_rmdir(name) == 0 ? 0 : -1;  in f_delete()
862 	rettv->vval.v_number = delete_recursive(name);  in f_delete()
877     rettv->vval.v_number = mch_can_exe(tv_get_string(&argvars[0]), NULL, TRUE);  in f_executable()
921     rettv->vval.v_number = n;  in f_filereadable()
933     rettv->vval.v_number = filewritable(tv_get_string(&argvars[0]));  in f_filewritable()
1099 	    && argvars[0].vval.v_number == -1  in f_getcwd()
1189 	    rettv->vval.v_number = 0;  in f_getfsize()
1192 	    rettv->vval.v_number = (varnumber_T)st.st_size;  in f_getfsize()
1195 	    if ((off_T)rettv->vval.v_number != (off_T)st.st_size)  in f_getfsize()
1196 		rettv->vval.v_number = -2;  in f_getfsize()
1200 	  rettv->vval.v_number = -1;  in f_getfsize()
1217 	rettv->vval.v_number = (varnumber_T)st.st_mtime;  in f_getftime()
1219 	rettv->vval.v_number = -1;  in f_getftime()
1414     rettv->vval.v_number = mch_isdir(tv_get_string(&argvars[0]));  in f_isdirectory()
1457     rettv->vval.v_number = FAIL;  in f_mkdir()
1489 		rettv->vval.v_number = OK;  in f_mkdir()
1495     rettv->vval.v_number = vim_mkdir_emsg(dir, prot);  in f_mkdir()
1568 	rettv.vval.v_number = rettv.vval.v_number == VVAL_TRUE;  in checkitem_common()
2242     rettv->vval.v_number = -1;  in f_writefile()
2330     rettv->vval.v_number = ret;  in f_writefile()