re PR libfortran/41387 (OPEN, STATUS='NEW' of a symbolic link to a non-existing file...

	PR fortran/41387
	* gfortran.texi: New section "File operations on symbolic links".

From-SVN: r226923

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index d1ead45836afe294b97a2c188b3ff6b93e9852c2..cede36efbf245fb10f990b738182a4ef9ccdecc4 100644 (file)
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2015-08-16  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
+
+       PR fortran/41387
+       * gfortran.texi: New section "File operations on symbolic links".
+
 2015-08-08  Francois-Xavier Coudert  <fxcoudert@gcc.gnu.org>
 
        PR fortran/67059

diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi
index a06c5fc4246b876ba41a8be0176cce37a2c46d45..e15d6e6605be4e1b9ed6ec5bacb99e05485d5c2d 100644 (file)
--- a/gcc/fortran/gfortran.texi
+++ b/gcc/fortran/gfortran.texi
@@ -1140,6 +1140,7 @@ might in some way or another become visible to the programmer.
 * Thread-safety of the runtime library::
 * Data consistency and durability::
 * Files opened without an explicit ACTION= specifier::
+* File operations on symbolic links::
 @end menu
 
 
@@ -1345,6 +1346,33 @@ processor dependent.  GNU Fortran behaves as follows:
 @end enumerate
 
 
+@node File operations on symbolic links
+@section File operations on symbolic links
+@cindex file, symbolic link
+
+This section documents the behavior of GNU Fortran for file operations on
+symbolic links, on systems that support them. 
+
+@itemize
+
+@item Results of INQUIRE statements of the ``inquire by file'' form will
+relate to the target of the symbolic link. For example,
+@code{INQUIRE(FILE="foo",EXIST=ex)} will set @var{ex} to @var{.true.} if
+@var{foo} is a symbolic link pointing to an existing file, and @var{.false.}
+if @var{foo} points to an non-existing file (``dangling'' symbolic link).
+
+@item Using the @code{OPEN} statement with a @code{STATUS="NEW"} specifier
+on a symbolic link will result in an error condition, whether the symbolic
+link points to an existing target or is dangling.
+
+@item If a symbolic link was connected, using the @code{CLOSE} statement
+with a @code{STATUS="DELETE"} specifier will cause the symbolic link itself
+to be deleted, not its target.
+
+@end itemize
+
+
+
 @c ---------------------------------------------------------------------
 @c Extensions
 @c ---------------------------------------------------------------------