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! { dg-do run }
! { dg-additional-options "-fcheck=all" }
!
! PR fortran/85781
!
! Co-contributed by G. Steinmetz
use iso_c_binding, only: c_char
call s(c_char_'x', 1, 1)
call s(c_char_'x', 1, 0)
call s(c_char_'x', 0, -2)
contains
subroutine s(x,m,n) bind(c)
use iso_c_binding, only: c_char
character(kind=c_char), value :: x
call foo(x(m:n), m, n)
if (n < m) then
if (len(x(m:n)) /= 0) stop 1
if (x(m:n) /= "") stop 2
else if (n == 1) then
if (len(x(m:n)) /= 1) stop 1
if (x(m:n) /= "x") stop 2
else
stop 14
end if
call foo(x(1:1), 1, 1)
call foo(x(1:0), 1, 0)
call foo(x(2:1), 2, 1)
call foo(x(0:-4), 0, -4)
call foo(x(1:), 1, 1)
call foo(x(2:), 2, 1)
call foo(x(:1), 1, 1)
call foo(x(:0), 1, 0)
if (n == 1) call foo(x(m:), m, n)
if (m == 1) call foo(x(:n), m, n)
end
subroutine foo(str, m, n)
character(len=*) :: str
if (n < m) then
if (len(str) /= 0) stop 11
if (str /= "") stop 12
else if (n == 1) then
if (len(str) /= 1) stop 13
if (str /= "x") stop 14
else
stop 14
end if
end
end
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