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program b
integer w
character(len=2) s, t
s = 'xi'
w = scan(s, 'iI')
if (w /= 2) call abort
w = scan(s, 'xX', .true.)
if (w /= 1) call abort
w = scan(s, 'ab')
if (w /= 0) call abort
w = scan(s, 'ab', .true.)
if (w /= 0) call abort
s = 'xi'
t = 'iI'
w = scan(s, t)
if (w /= 2) call abort
t = 'xX'
w = scan(s, t, .true.)
if (w /= 1) call abort
t = 'ab'
w = scan(s, t)
if (w /= 0) call abort
w = scan(s, t, .true.)
if (w /= 0) call abort
end program b
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