re PR fortran/41328 (bad iostat when reading DOS file in a character array (non-advancing))

2009-09-12  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libgfortran/41328
	* gfortran.dg/cr_lf.f90: New test.

From-SVN: r151666

gcc/testsuite/ChangeLog

+2009-09-12  Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+
+	PR libgfortran/41328
+	* gfortran.dg/cr_lf.f90: New test.
+
 2009-09-11  Michael Matz  <matz@suse.de>
 
 	PR middle-end/41275

gcc/testsuite/gfortran.dg/cr_lf.f90

+! { dg-do run }
+! { dg-options "-fbackslash" }
+! PR41328 and PR41168 Improper read of CR-LF sequences.
+! Test case prepared by Jerry DeLisle  <jvdelisle@gcc.gnu.org>
+program main
+   implicit none
+   integer :: iostat, n_chars_read
+   character(len=1) :: buffer(64) = ""
+   open( unit=10, form="formatted", access="stream", status="scratch")
+   write(10, fmt="(a)", advance="no") "a\rb\rc\r"
+   rewind(10)
+   
+   read( unit=10, fmt='(64A)', advance='NO', iostat=iostat,          &
+         size=n_chars_read ) buffer
+   if (n_chars_read.ne.1) call abort
+   if (any(buffer(1:n_chars_read).ne."a")) call abort
+   if (.not.is_iostat_eor(iostat)) call abort
+
+   read( unit=10, fmt='(64A)', advance='NO', iostat=iostat,          &
+         size=n_chars_read ) buffer
+   if (n_chars_read.ne.1) call abort
+   if (any(buffer(1:n_chars_read).ne."b")) call abort
+   if (.not.is_iostat_eor(iostat)) call abort
+
+   read( unit=10, fmt='(64A)', advance='NO', iostat=iostat,          &
+         size=n_chars_read ) buffer
+   if (n_chars_read.ne.1) call abort
+   if (any(buffer(1:n_chars_read).ne."c")) call abort
+   if (.not.is_iostat_eor(iostat)) call abort
+
+   read( unit=10, fmt='(64A)', advance='NO', iostat=iostat,          &
+         size=n_chars_read ) buffer
+   if (n_chars_read.ne.0) call abort
+   if (any(buffer(1:n_chars_read).ne."a")) call abort
+   if (.not.is_iostat_end(iostat)) call abort
+end program main