gfortran.h (enum init_local_real.): Add GFC_INIT_REAL_SNAN.

gfortran.h (enum init_local_real.): Add GFC_INIT_REAL_SNAN.

2009-03-27  Tobias Burnus  <burnus@net-b.de>

        * gfortran.h (enum init_local_real.): Add GFC_INIT_REAL_SNAN.
        (gfc_expr): Add is_snan.
        * trans-const.c (gfc_conv_mpfr_to_tree): Support SNaN.
        (gfc_conv_constant_to_tree): Update call to gfc_conv_mpfr_to_tree.
        * trans-const.h (gfc_conv_mpfr_to_tree): Update prototype.
        * resolve.c (build_default_init_expr): Update call.
        * target-memory.c (encode_float): Ditto.
        * trans-intrinsic.c
        * (gfc_conv_intrinsic_aint,gfc_conv_intrinsic_mod,

From-SVN: r145129