FOR condition

The FOR condition describes the begin, condition and end for a FOR loop. The first statement list (basic_stmt) is executed, when initializing the FOR loop, i.e. only once at the beginning. The second statement list (basic_stmt) is executed before each iteration to check, whether a next iteration step is required. The loop continues as long as the value of the last statement in the list is true. When defining more than one statement in the list, all statements are executed, but the last only is checked for continuation. The last statement list (stmt_operlist) is executed at the end of each iteration.