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Line No. Rev Author Line
1 694 jeremybenn 
!{ dg-do run }
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! PR26464 File I/O error related to buffering and BACKSPACE
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! Test case derived from case by Dale Ranta.
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! Submitted  by Jerry DeLisle  <jvdelisle@gcc.gnu.org>
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      program test
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      integer,parameter :: datasize = 1000
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      dimension idata(datasize)
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      idata = -42
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      open (11, status="scratch", form="unformatted")
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        idata(1)   =  -1
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        idata(  datasize)   =  -2
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       write(11)idata
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        idata(1)   =  -2
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        idata(  datasize)   =  -3
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       write(11)idata
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        idata(1)   =  -3
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        idata(  datasize)   =  -4
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       write(11)idata
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        idata(1)   =  -4
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        idata(  datasize)   =  -5
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       write(11)idata
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       read(11,end=        1000 )idata
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       call abort()
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 1000  continue
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       backspace 11
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       backspace 11
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       backspace 11
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       read(11,end=        1001 )idata
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       if(idata(1).ne.-3 .or. idata(datasize).ne.-4) call abort()
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       stop
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 1001  continue
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       call abort()
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 1010  stop
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       end
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