From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/testsuite/gfortran.dg/streamio_15.f90 | 45 +++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 gcc/testsuite/gfortran.dg/streamio_15.f90 (limited to 'gcc/testsuite/gfortran.dg/streamio_15.f90') diff --git a/gcc/testsuite/gfortran.dg/streamio_15.f90 b/gcc/testsuite/gfortran.dg/streamio_15.f90 new file mode 100644 index 000000000..bbe91f110 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/streamio_15.f90 @@ -0,0 +1,45 @@ +! { dg-do run { target fd_truncate } } +! PR35132 Formatted stream I/O write should truncate. +! Test case adapted from PR by Jerry DeLisle +program main + implicit none + character(len=6) :: c + integer :: i, newline_length + + open(20,status="scratch",access="stream",form="formatted") + write(20,"()") + inquire(20,pos=newline_length) + newline_length = newline_length - 1 + if (newline_length < 1 .or. newline_length > 2) call abort + close(20) + + open(20,file="foo.txt",form="formatted",access="stream") + write(20,'(A)') '123456' + write(20,'(A)') 'abcdef' + write(20,'(A)') 'qwerty' + rewind 20 + ! Skip over the first line + read(20,'(A)') c + if (c.ne.'123456') call abort + ! Save the position + inquire(20,pos=i) + if (i.ne.7+newline_length) call abort + ! Read in the complete line... + read(20,'(A)') c + if (c.ne.'abcdef') call abort + ! Write out the first four characters + write(20,'(A)',pos=i,advance="no") 'ASDF' + ! Fill up the rest of the line. Here, we know the length. If we + ! don't, things will be a bit more complicated. + write(20,'(A)') c(5:6) + ! Copy the file to standard output + rewind 20 + c = "" + read(20,'(A)') c + if (c.ne.'123456') call abort + read(20,'(A)') c + if (c.ne.'ASDFef') call abort + read(20,'(A)', iostat=i) c + if (i /= -1) call abort + close (20, status="delete") +end program main -- cgit v1.2.3