1 files changed, 64 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/cr_lf.f90 b/gcc/testsuite/gfortran.dg/cr_lf.f90
new file mode 100644
index 000000000..eb5500e01
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/cr_lf.f90
@@ -0,0 +1,64 @@
+! { 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, k
+   character(len=1) :: buffer(64) = ""
+   character (len=80) :: u
+
+   ! Set up the test file with normal file end.
+   open(unit=10, file="crlftest", form="unformatted", access="stream",&
+   & status="replace")
+   write(10) "a\rb\rc\r" ! CR at the end of each record.
+   close(10, status="keep")
+
+   open(unit=10, file="crlftest", form="formatted", status="old")
+   
+   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
+   close(10, status="delete")
+
+   ! Set up the test file with normal file end.
+   open(unit=10, file="crlftest", form="unformatted", access="stream",&
+   & status="replace")
+   write(10) "a\rb\rc\rno end of line marker" ! Note, no CR at end of file.
+   close(10, status="keep")
+
+   open(unit=10, file="crlftest", status='old')
+
+   do k = 1, 10
+     read(10,'(a80)',end=101,err=100) u
+     !print *,k,' : ',u(1:len_trim(u))
+   enddo
+   
+100 continue
+   close(10, status="delete")
+   call abort
+
+101 continue
+   close(10, status="delete")
+   if (u(1:len_trim(u)).ne."no end of line marker") call abort
+end program main