23 lines
554 B
Fortran
23 lines
554 B
Fortran
! { dg-do run }
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! Test that we can write an unformatted stream file without
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! truncating.
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program main
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character (len=10) c
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open(10, form="unformatted", access="stream", position="rewind")
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write (10) '1234567890abcde'
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c = ''
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read (10,pos=1) c
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if (c /= '1234567890') call abort
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c = ''
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read (10,pos=6) c
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if (c /= '67890abcde') call abort
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write (10,pos=3) 'AB'
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c = ''
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read (10,pos=1) c
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if (c /= '12AB567890') call abort
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c = ''
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read (10,pos=6) c
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if (c /= '67890abcde') call abort
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close (10,status="delete")
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end program main
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