819     rettv->vval.v_number = -1;  in byteidx()
841     rettv->vval.v_number = (varnumber_T)(t - str);  in byteidx()
875     rettv->vval.v_number = -1;  in f_charidx()
917     rettv->vval.v_number = len > 0 ? len - 1 : 0;  in f_charidx()
1010 	rettv->vval.v_number = -n;  in f_str2nr()
1012 	rettv->vval.v_number = n;  in f_str2nr()
1028     rettv->vval.v_number = -1;  in f_strgetchar()
1047 	    rettv->vval.v_number = mb_ptr2char(str + byteidx);  in f_strgetchar()
1076     rettv->vval.v_number = -1;  in f_stridx()
1093 	rettv->vval.v_number = (varnumber_T)(pos - save_haystack);  in f_stridx()
1123     rettv->vval.v_number = (varnumber_T)(STRLEN(  in f_strlen()
1140     rettv->vval.v_number = len;  in strchar_common()
1186     rettv->vval.v_number = -1;  in f_strdisplaywidth()
1197     rettv->vval.v_number = (varnumber_T)(linetabsize_col(col, s) - col);  in f_strdisplaywidth()
1212     rettv->vval.v_number = (varnumber_T)(mb_string2cells(s, -1));  in f_strwidth()
1388     rettv->vval.v_number = -1;  in f_strridx()
1420 	rettv->vval.v_number = -1;  in f_strridx()
1422 	rettv->vval.v_number = (varnumber_T)(lastmatch - haystack);  in f_strridx()
1762 	    f = (double)tvs[idx].vval.v_number;  in tv_float()