Revert r244448

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@244454 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 6 insertions, 36 deletions

diff --git a/gcc/fortran/gfortran.texi b/gcc/fortran/gfortran.texi
index 1a36dd7b80d..9a263171e47 100644
--- a/gcc/fortran/gfortran.texi
+++ b/gcc/fortran/gfortran.texi
@@ -3810,42 +3810,12 @@ front ends of GCC, e.g. to GCC's C99 compiler for @code{_Bool}
 or GCC's Ada compiler for @code{Boolean}.)
 
 For arguments of @code{CHARACTER} type, the character length is passed
-as a hidden argument at the end of the argument list.  For
-deferred-length strings, the value is passed by reference, otherwise
-by value.  The character length has the C type @code{size_t} (or
-@code{INTEGER(kind=C_SIZE_T)} in Fortran).  Note that this is
-different to older versions of the GNU Fortran compiler, where the
-type of the hidden character length argument was a C @code{int}.  In
-order to retain compatibility with older versions, one can e.g. for
-the following Fortran procedure
-
-@smallexample
-subroutine fstrlen (s, a)
-   character(len=*) :: s
-   integer :: a
-   print*, len(s)
-end subroutine fstrlen
-@end smallexample
-
-define the corresponding C prototype as follows:
-
-@smallexample
-#if __GNUC__ > 6
-typedef size_t fortran_charlen_t;
-#else
-typedef int fortran_charlen_t;
-#endif
-
-void fstrlen_ (char*, int*, fortran_charlen_t);
-@end smallexample
-
-In order to avoid such compiler-specific details, for new code it is
-instead recommended to use the ISO_C_BINDING feature.
-
-Note with C binding, @code{CHARACTER(len=1)} result variables are
-returned according to the platform ABI and no hidden length argument
-is used for dummy arguments; with @code{VALUE}, those variables are
-passed by value.
+as hidden argument.  For deferred-length strings, the value is passed
+by reference, otherwise by value.  The character length has the type
+@code{INTEGER(kind=4)}.  Note with C binding, @code{CHARACTER(len=1)}
+result variables are returned according to the platform ABI and no
+hidden length argument is used for dummy arguments; with @code{VALUE},
+those variables are passed by value.
 
 For @code{OPTIONAL} dummy arguments, an absent argument is denoted
 by a NULL pointer, except for scalar dummy arguments of type