subroutine test_triu ()
call lala( 'display(ones(80,1)''*61)')
call lala( 'help triu')
call lala( 'tally=[0];')
call lala( [ character(len=256) :: &
& ' ', &
& ' ', &
& ' ', &
!& 'if a+b=zeros(a), tally=[tally,0];display(''a-b is zero '');else,tally=[tally,1];display(''a-b is NOT zero''); ', &
& 'if sum(tally)=0,display(''triu PASSED'');else,display(''triu FAILED'');tally ', &
& ''])
end subroutine test_triu