[Bug fortran/48720] quad precision literals do not work

["kargl at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48720

--- Comment #10 from kargl at gcc dot gnu.org 2011-05-04 19:18:04 UTC ---
Author: kargl
Date: Wed May  4 19:18:01 2011
New Revision: 173392

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173392
Log:
2011-05-04  Steven G. Kargl  <kargl@gcc.gnu.org>

        PR fortran/48720
        * gfortran.texi: Document the 'Q' exponent-letter extension.
        * invoke.texi: Document -Wreal-q-constant.
        * lang.opt: Add -Wreal-q-constant option.
        * gfortran.h: Add warn_real_q_constant to option struct.
        * primary.c (match_real_constant):  Use it.  Accept 'Q' as
        exponent-letter for REAL(16) real-literal-constant with a
        fallback to REAL(10) or error if REAL(10) is not available.
        * options.c (gfc_init_options, set_Wall) Set it.
        (gfc_handle_option): Handle new option.

Modified:
    branches/gcc-4_6-branch/gcc/fortran/ChangeLog
    branches/gcc-4_6-branch/gcc/fortran/gfortran.h
    branches/gcc-4_6-branch/gcc/fortran/gfortran.texi
    branches/gcc-4_6-branch/gcc/fortran/invoke.texi
    branches/gcc-4_6-branch/gcc/fortran/lang.opt
    branches/gcc-4_6-branch/gcc/fortran/options.c
    branches/gcc-4_6-branch/gcc/fortran/primary.c