/* Definitions for C parsing and type checking.
- Copyright (C) 1987, 1993 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1993, 1994, 1995 Free Software Foundation, Inc.
This file is part of GNU CC.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
#ifndef _C_TREE_H
#define _C_TREE_H
-#ifndef STDIO_PROTO
-#ifdef BUFSIZ
-#define STDIO_PROTO(ARGS) PROTO(ARGS)
-#else
-#define STDIO_PROTO(ARGS) ()
-#endif
-#endif
-
/* Language-dependent contents of an identifier. */
/* The limbo_value is used for block level extern declarations, which need
/* This represents the value which the identifier has in the
file-scope namespace. */
#define IDENTIFIER_GLOBAL_VALUE(NODE) \
- (((struct lang_identifier *)(NODE))->global_value)
+ (((struct lang_identifier *) (NODE))->global_value)
/* This represents the value which the identifier has in the current
scope. */
#define IDENTIFIER_LOCAL_VALUE(NODE) \
- (((struct lang_identifier *)(NODE))->local_value)
+ (((struct lang_identifier *) (NODE))->local_value)
/* This represents the value which the identifier has as a label in
the current label scope. */
#define IDENTIFIER_LABEL_VALUE(NODE) \
- (((struct lang_identifier *)(NODE))->label_value)
+ (((struct lang_identifier *) (NODE))->label_value)
/* This records the extern decl of this identifier, if it has had one
at any point in this compilation. */
#define IDENTIFIER_LIMBO_VALUE(NODE) \
- (((struct lang_identifier *)(NODE))->limbo_value)
+ (((struct lang_identifier *) (NODE))->limbo_value)
/* This records the implicit function decl of this identifier, if it
has had one at any point in this compilation. */
#define IDENTIFIER_IMPLICIT_DECL(NODE) \
- (((struct lang_identifier *)(NODE))->implicit_decl)
+ (((struct lang_identifier *) (NODE))->implicit_decl)
/* This is the last function in which we printed an "undefined variable"
message for this identifier. Value is a FUNCTION_DECL or null. */
#define IDENTIFIER_ERROR_LOCUS(NODE) \
- (((struct lang_identifier *)(NODE))->error_locus)
+ (((struct lang_identifier *) (NODE))->error_locus)
/* In identifiers, C uses the following fields in a special way:
TREE_PUBLIC to record that there was a previous local extern decl.
/* Store a value in that field. */
#define C_SET_EXP_ORIGINAL_CODE(exp, code) \
- (TREE_COMPLEXITY (exp) = (int)(code))
+ (TREE_COMPLEXITY (exp) = (int) (code))
/* Record whether a typedef for type `int' was actually `signed int'. */
#define C_TYPEDEF_EXPLICITLY_SIGNED(exp) DECL_LANG_FLAG_1 ((exp))
without prototypes. */
#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_NONCOPIED_PARTS (NODE)
+/* In a FIELD_DECL, nonzero if the decl was originally a bitfield. */
+#define DECL_C_BIT_FIELD(NODE) DECL_LANG_FLAG_4 (NODE)
+
/* Nonzero if the type T promotes to itself.
ANSI C states explicitly the list of types that promote;
in particular, short promotes to int even if they have the same width. */
an explicit loop over that iterator. */
#define ITERATOR_BOUND_P(NODE) ((NODE)->common.readonly_flag)
\f
-extern int maybe_objc_comptypes PROTO((tree, tree));
+/* in c-lang.c and objc-act.c */
+extern tree lookup_interface PROTO((tree));
+extern tree is_class_name PROTO((tree));
+extern void maybe_objc_check_decl PROTO((tree));
+extern int maybe_objc_comptypes PROTO((tree, tree, int));
extern tree maybe_building_objc_message_expr PROTO((void));
+extern tree maybe_objc_method_name PROTO((tree));
+extern int recognize_objc_keyword PROTO((void));
+extern tree build_objc_string PROTO((int, char *));
\f
/* in c-aux-info.c */
extern void gen_aux_info_record PROTO((tree, int, int, int));
/* in c-common.c */
+extern void declare_function_name PROTO((void));
+extern void decl_attributes PROTO((tree, tree, tree));
+extern void init_function_format_info PROTO((void));
+extern void record_function_format PROTO((tree, tree, int, int, int));
+extern void check_function_format PROTO((tree, tree, tree));
/* Print an error message for invalid operands to arith operation CODE.
NOP_EXPR is used as a special case (see truthvalue_conversion). */
extern void binary_op_error PROTO((enum tree_code));
/* Concatenate a list of STRING_CST nodes into one STRING_CST. */
extern tree combine_strings PROTO((tree));
extern void constant_expression_warning PROTO((tree));
-extern void decl_attributes PROTO((tree, tree));
-extern void declare_function_name PROTO((void));
extern tree convert_and_check PROTO((tree, tree));
-extern void constant_expression_warning PROTO((tree));
extern void overflow_warning PROTO((tree));
extern void unsigned_conversion_warning PROTO((tree, tree));
/* Read the rest of the current #-directive line. */
extern tree void_type_node;
extern tree wchar_array_type_node;
extern tree wchar_type_node;
+extern tree boolean_type_node;
+extern tree boolean_true_node;
+extern tree boolean_false_node;
extern tree build_enumerator PROTO((tree, tree));
/* Declare a predefined function. Return the declaration. */
extern tree define_label PROTO((char *, int, tree));
extern void delete_block PROTO((tree));
extern void finish_decl PROTO((tree, tree, tree));
-extern tree finish_enum PROTO((tree, tree));
+extern void finish_decl_top_level PROTO((tree, tree, tree));
+extern tree finish_enum PROTO((tree, tree, tree));
extern void finish_function PROTO((int));
-extern tree finish_struct PROTO((tree, tree));
+extern tree finish_struct PROTO((tree, tree, tree));
extern tree get_parm_info PROTO((int));
extern tree getdecls PROTO((void));
extern tree gettags PROTO((void));
extern tree lookup_label PROTO((tree));
extern tree lookup_name PROTO((tree));
extern tree lookup_name_current_level PROTO((tree));
+extern tree lookup_name_current_level_global PROTO((tree));
extern tree maybe_build_cleanup PROTO((tree));
extern void parmlist_tags_warning PROTO((void));
extern void pending_xref_error PROTO((void));
extern void pop_c_function_context PROTO((void));
extern void pop_label_level PROTO((void));
extern tree poplevel PROTO((int, int, int));
-extern void print_lang_decl PROTO((void));
+extern void print_lang_decl STDIO_PROTO((FILE *, tree,
+ int));
extern void print_lang_identifier STDIO_PROTO((FILE *, tree,
int));
-extern void print_lang_type PROTO((void));
+extern void print_lang_type STDIO_PROTO((FILE *, tree,
+ int));
extern void push_c_function_context PROTO((void));
extern void push_label_level PROTO((void));
extern void push_parm_decl PROTO((tree));
extern void shadow_tag PROTO((tree));
extern void shadow_tag_warned PROTO((tree, int));
extern tree start_enum PROTO((tree));
-extern int start_function PROTO((tree, tree, int));
-extern tree start_decl PROTO((tree, tree, int));
+extern int start_function PROTO((tree, tree, tree,
+ tree, int));
+extern tree start_decl PROTO((tree, tree, int,
+ tree, tree));
extern tree start_struct PROTO((enum tree_code, tree));
extern void store_parm_decls PROTO((void));
extern tree xref_tag PROTO((enum tree_code, tree));
/* in c-typeck.c */
-extern tree build_array_ref PROTO((tree, tree));
-extern tree build_binary_op PROTO((enum tree_code, tree, tree, int));
-extern tree build_c_cast PROTO((tree, tree));
-extern tree build_component_ref PROTO((tree, tree));
-extern tree build_compound_expr PROTO((tree));
-extern tree build_conditional_expr PROTO((tree, tree, tree));
-extern tree build_function_call PROTO((tree, tree));
-extern tree build_indirect_ref PROTO((tree, char *));
-extern tree build_modify_expr PROTO((tree, enum tree_code, tree));
-extern tree build_unary_op PROTO((enum tree_code, tree, int));
-extern tree c_alignof PROTO((tree));
-extern tree c_alignof_expr PROTO((tree));
-extern tree c_sizeof PROTO((tree));
-extern tree c_expand_start_case PROTO((tree));
+extern tree require_complete_type PROTO((tree));
+extern void incomplete_type_error PROTO((tree, tree));
/* Given two integer or real types, return the type for their sum.
Given two compatible ANSI C types, returns the merged type. */
extern tree common_type PROTO((tree, tree));
+extern int comptypes PROTO((tree, tree));
+extern int self_promoting_args_p PROTO((tree));
+extern tree c_sizeof PROTO((tree));
+extern tree c_sizeof_nowarn PROTO((tree));
+extern tree c_size_in_bytes PROTO((tree));
+extern tree c_alignof PROTO((tree));
+extern tree c_alignof_expr PROTO((tree));
extern tree default_conversion PROTO((tree));
-extern tree digest_init PROTO((tree, tree, tree *, int, int, char *));
-extern tree parser_build_binary_op PROTO((enum tree_code, tree, tree));
-extern tree require_complete_type PROTO((tree));
+extern tree build_component_ref PROTO((tree, tree));
+extern tree build_indirect_ref PROTO((tree, char *));
+extern tree build_array_ref PROTO((tree, tree));
+extern tree build_function_call PROTO((tree, tree));
+extern tree parser_build_binary_op PROTO((enum tree_code,
+ tree, tree));
+extern tree build_binary_op PROTO((enum tree_code,
+ tree, tree, int));
+extern tree build_unary_op PROTO((enum tree_code,
+ tree, int));
+extern int lvalue_p PROTO((tree));
+extern int lvalue_or_else PROTO((tree, char *));
+extern void readonly_warning PROTO((tree, char *));
+extern int mark_addressable PROTO((tree));
+extern tree build_conditional_expr PROTO((tree, tree, tree));
+extern tree build_compound_expr PROTO((tree));
+extern tree build_c_cast PROTO((tree, tree));
+extern tree build_modify_expr PROTO((tree, enum tree_code,
+ tree));
+extern tree initializer_constant_valid_p PROTO((tree, tree));
extern void store_init_value PROTO((tree, tree));
+extern void error_init PROTO((char *, char *,
+ char *));
+extern void pedwarn_init PROTO((char *, char *,
+ char *));
+extern void start_init PROTO((tree, tree, int));
+extern void finish_init PROTO((void));
+extern void really_start_incremental_init PROTO((tree));
+extern void push_init_level PROTO((int));
+extern tree pop_init_level PROTO((int));
+extern void set_init_index PROTO((tree, tree));
+extern void set_init_label PROTO((tree));
+extern void process_init_element PROTO((tree));
+extern void c_expand_asm_operands PROTO((tree, tree, tree, tree,
+ int, char *, int));
+extern void c_expand_return PROTO((tree));
+extern tree c_expand_start_case PROTO((tree));
/* in c-iterate.c */
extern void iterator_expand PROTO((tree));
extern int current_function_returns_null;
+/* Nonzero means the expression being parsed will never be evaluated.
+ This is a count, since unevaluated expressions can nest. */
+
+extern int skip_evaluation;
+
/* Nonzero means `$' can be in an identifier. */
extern int dollars_in_ident;
extern int warn_cast_qual;
+/* Nonzero means warn when casting a function call to a type that does
+ not match the return type (e.g. (float)sqrt() or (anything*)malloc()
+ when there is no previous declaration of sqrt or malloc. */
+
+extern int warn_bad_function_cast;
+
/* Warn about traditional constructs whose meanings changed in ANSI C. */
extern int warn_traditional;
extern int flag_traditional;
+/* Nonzero means to allow single precision math even if we're generally
+ being traditional. */
+extern int flag_allow_single_precision;
+
/* Nonzero means warn about suggesting putting in ()'s. */
extern int warn_parentheses;
extern int warn_missing_braces;
+/* Warn about comparison of signed and unsigned values. */
+
+extern int warn_sign_compare;
+
/* Nonzero means this is a function to call to perform comptypes
on two record types. */
extern int system_header_p;
+/* Nonzero enables objc features. */
+
+extern int doing_objc_thang;
+
#endif /* not _C_TREE_H */
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