:sig
u32 mysql_affected_rows(MySQL* m)

:params
m : pointer to an active MySQL connection
return value : number of rows changed by the most recent statement

:see
>mysql
mysql_query
mysql_insert_id

:content
Returns the number of rows changed by the most recent insert, update, or delete on the connection. A successful statement that returns rows, a rejected query, or a null connection returns `0` rather than retaining an earlier statement's count.

:example
MySQL* db = mysql_connect();
if(db != 0)
{
    mysql_query(db, "update users set active=1 where active=0");
    print("rows updated: ", mysql_affected_rows(db), "\n");
    mysql_disconnect(db);
}
else print("(requires a reachable MySQL server)\n");