aboutsummaryrefslogtreecommitdiff
path: root/gcc/fortran
diff options
context:
space:
mode:
authorjvdelisle <jvdelisle@138bc75d-0d04-0410-961f-82ee72b054a4>2015-03-22 21:37:13 +0000
committerjvdelisle <jvdelisle@138bc75d-0d04-0410-961f-82ee72b054a4>2015-03-22 21:37:13 +0000
commit2097ec5e1171b82f2cc034102c990cd7e3a16973 (patch)
tree3d3c013bc3132d23f40197c75753dac8458eb130 /gcc/fortran
parentf300163e617c181da8b69e1146391bcf3330257f (diff)
2015-03-22 Jerry DeLisle <jvdelisle@gcc.gnu.org>
PR libgfortran/59513 * gfortran.texi (Read/Write after EOF marker): New information. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@221575 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/fortran')
-rw-r--r--gcc/fortran/ChangeLog5
-rw-r--r--gcc/fortran/gfortran.texi13
2 files changed, 18 insertions, 0 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 3fc259c2cae..c8c030844fd 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-22 Jerry DeLisle <jvdelisle@gcc.gnu.org>
+
+ PR libgfortran/59513
+ * gfortran.texi (Read/Write after EOF marker): New information.
+
2015-03-21 H.J. Lu <hongjiu.lu@intel.com>
* gfortran.texi (_gfortran_caf_sync_memory): Put @{xxx} in one
diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi
index c980fe3d008..9eca6c7a756 100644
--- a/gcc/fortran/gfortran.texi
+++ b/gcc/fortran/gfortran.texi
@@ -1404,6 +1404,7 @@ without warning.
* OpenMP::
* OpenACC::
* Argument list functions::
+* Read/Write after EOF marker::
@end menu
@node Old-style kind specifications
@@ -2049,6 +2050,18 @@ For details refer to the g77 manual
Also, @code{c_by_val.f} and its partner @code{c_by_val.c} of the
GNU Fortran testsuite are worth a look.
+@node Read/Write after EOF marker
+@subsection Read/Write after EOF marker
+@cindex @code{EOF}
+@cindex @code{BACKSPACE}
+@cindex @code{REWIND}
+
+Some legacy codes rely on allowing @code{READ} or @code{WRITE} after the
+EOF file marker in order to find the end of a file. GNU Fortran normally
+rejects these codes with a run-time error message and suggests the user
+consider @code{BACKSPACE} or @code{REWIND} to properly position
+the file before the EOF marker. As an extension, the run-time error may
+be disabled using -std=legacy.
@node Extensions not implemented in GNU Fortran
@section Extensions not implemented in GNU Fortran