arith.c (gfc_enum_initializer): New function.

fortran/
2005-10-30  Gaurav Gautam  <gauravga@noida.hcltech.com>
	    Tobias Schl"uter  <tobias.schlueter@physik.uni-muenchen.de>

	* arith.c (gfc_enum_initializer): New function.
	(gfc_check_integer_range): Made extern.
	* decl.c (enumerator_history): New typedef.
	(last_initializer, enum_history, max_enum): New variables.
	(create_enum_history, gfc_free_enum_history): New functions.
	(add_init_expr_to_sym): Call create_enum_history if parsing ENUM.
	(variable_decl): Modified to parse enumerator definition.
	(match_attr_spec): Add PARAMETER attribute to ENUMERATORs.
	(gfc_match_data_decl): Issues error, if match_type_spec do not
	return desired return values.
	(set_enum_kind, gfc_match_enum, gfc_match_enumerator_def): New
	functions.
	(gfc_match_end): Deal with END ENUM.
	* gfortran.h (gfc_statement): ST_ENUM, ST_ENUMERATOR, ST_END_ENUM
	added.
	(symbol_attribute): Bit field for enumerator added.
	(gfc_options): Add fshort_enums.
	(gfc_enum_initializer, gfc_check_integer_range): Add prototypes.
	* options.c: Include target.h
	(gfc_init_options): Initialize fshort_enums.
	(gfc_handle_option): Deal with fshort_enums.
	* parse.c (decode_statement): Match ENUM and ENUMERATOR statement.
	(gfc_ascii_statement): Deal with the enumerator statements.
	(parse_enum): New function to parse enum construct.
	(parse_spec): Added case ST_ENUM.
	* parse.h (gfc_compile_state): COMP_ENUM added.
	(gfc_match_enum, gfc_match_enumerator_def, gfc_free_enum_history):
	Prototype added.
	* symbol.c (gfc_copy_attr): Copy enumeration attribute.
	* lang.opt (fshort-enums): Option added.

testsuite/
2005-10-30  Tobias Schl"uter  <tobias.schlueter@physik.uni-muenchen.de>

	* gfortran.dg/enum_10.f90, gfortran.dg/enum_10.c: New test.

2005-10-30  Gaurav Gautam  <gauravga@noida.hcltech.com>

	* gfortran.dg/enum_1.f90, gfortran.dg/enum_2.f90,
	gfortran.dg/enum_3.f90, gfortran.dg/enum_4.f90,
	gfortran.dg/enum_5.f90, gfortran.dg/enum_6.f90,
	gfortran.dg/enum_7.f90, gfortran.dg/enum_8.f90,
	gfortran.dg/enum_9.f90,
	gfortran.fortran-torture/compile/enum_1.f90,
	gfortran.fortran-torture/execute/enum_1.f90,
	gfortran.fortran-torture/execute/enum_2.f90,
	gfortran.fortran-torture/execute/enum_3.f90,
	gfortran.fortran-torture/execute/enum_4.f90: New tests.

From-SVN: r106246