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! { dg-do link }
! { dg-options "-Wsurprising" }
! Tests the fix for PR 31250
! CHARACTER lengths weren't reduced early enough for all checks of
! them to be meaningful. Furthermore negative string lengths weren't
! dealt with correctly.
CHARACTER(len=0) :: c1 ! This is OK.
CHARACTER(len=-1) :: c2 ! { dg-warning "has negative length" }
PARAMETER(I=-100)
CHARACTER(len=I) :: c3 ! { dg-warning "has negative length" }
CHARACTER(len=min(I,500)) :: c4 ! { dg-warning "has negative length" }
CHARACTER(len=max(I,500)) :: d1 ! no warning
CHARACTER(len=5) :: d2 ! no warning
if (len(c1) .ne. 0) call link_error ()
if (len(c2) .ne. len(c1)) call link_error ()
if (len(c3) .ne. len(c2)) call link_error ()
if (len(c4) .ne. len(c3)) call link_error ()
if (len(d1) .ne. 500) call link_error ()
if (len(d2) .ne. 5) call link_error ()
END
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