1!{ dg-do run { target fd_truncate } } 2! PR26464 File I/O error related to buffering and BACKSPACE 3! Test case derived from case by Dale Ranta. 4! Submitted by Jerry DeLisle <jvdelisle@gcc.gnu.org> 5 program test 6 integer,parameter :: datasize = 5000 7 dimension idata(datasize) 8 idata = -42 9 open (11, status="scratch", form="unformatted") 10 idata(1) = -1 11 idata(datasize) = -2 12 write(11)idata 13 idata(1) = -2 14 idata(datasize) = -3 15 write(11)idata 16 idata(1) = -3 17 idata(datasize) = -4 18 write(11)idata 19 backspace 11 20 backspace 11 21 idata(1) = -2 22 idata(datasize) = -3 23 write(11)idata 24 read(11,end= 1003 )idata 25 STOP 1 26 1003 continue 27 backspace 11 28 backspace 11 29 read(11,end= 1004 )idata 30 if(idata(1).ne.-2 .or.idata(datasize).ne.-3) STOP 2 31 stop 32 1004 continue 33 end 34 35