/* Definitions for C parsing and type checking.
- Copyright (C) 1987, 1993, 1994, 1995, 1997 Free Software Foundation, Inc.
+ Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
+ 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-GNU General Public License for more details.
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
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, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
-#ifndef _C_TREE_H
-#define _C_TREE_H
+#ifndef GCC_C_TREE_H
+#define GCC_C_TREE_H
-/* Language-dependent contents of an identifier. */
+#include "c-common.h"
+#include "diagnostic.h"
-/* The limbo_value is used for block level extern declarations, which need
- to be type checked against subsequent extern declarations. They can't
- be referenced after they fall out of scope, so they can't be global. */
+/* struct lang_identifier is private to c-decl.c, but langhooks.c needs to
+ know how big it is. This is sanity-checked in c-decl.c. */
+#define C_SIZEOF_STRUCT_LANG_IDENTIFIER \
+ (sizeof (struct c_common_identifier) + 3 * sizeof (void *))
-struct lang_identifier
+/* For gc purposes, return the most likely link for the longest chain. */
+#define C_LANG_TREE_NODE_CHAIN_NEXT(T) \
+ ((union lang_tree_node *) \
+ (TREE_CODE (T) == INTEGER_TYPE ? TYPE_NEXT_VARIANT (T) \
+ : TREE_CODE (T) == COMPOUND_EXPR ? TREE_OPERAND (T, 1) \
+ : TREE_CHAIN (T)))
+
+/* Language-specific declaration information. */
+
+struct lang_decl GTY(())
{
- struct tree_identifier ignore;
- tree global_value, local_value, label_value, implicit_decl;
- tree error_locus, limbo_value;
+ /* The return types and parameter types may have variable size.
+ This is a list of any SAVE_EXPRs that need to be evaluated to
+ compute those sizes. */
+ tree pending_sizes;
};
-/* Macros for access to language-specific slots in an identifier. */
-/* Each of these slots contains a DECL node or null. */
-
-/* This represents the value which the identifier has in the
- file-scope namespace. */
-#define IDENTIFIER_GLOBAL_VALUE(NODE) \
- (((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)
-/* 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)
-/* 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)
-/* 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)
-/* 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)
-
-/* In identifiers, C uses the following fields in a special way:
- TREE_PUBLIC to record that there was a previous local extern decl.
- TREE_USED to record that such a decl was used.
- TREE_ADDRESSABLE to record that the address of such a decl was used. */
-
-/* Nonzero means reject anything that ANSI standard C forbids. */
-extern int pedantic;
-
/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */
-#define C_TYPE_FIELDS_READONLY(type) TREE_LANG_FLAG_1 (type)
+#define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE)
/* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */
-#define C_TYPE_FIELDS_VOLATILE(type) TREE_LANG_FLAG_2 (type)
+#define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE)
/* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE
nonzero if the definition of the type has already started. */
-#define C_TYPE_BEING_DEFINED(type) TYPE_LANG_FLAG_0 (type)
+#define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE)
+
+/* In an incomplete RECORD_TYPE or UNION_TYPE, a list of variable
+ declarations whose type would be completed by completing that type. */
+#define C_TYPE_INCOMPLETE_VARS(TYPE) TYPE_VFIELD (TYPE)
+
+/* In an IDENTIFIER_NODE, nonzero if this identifier is actually a
+ keyword. C_RID_CODE (node) is then the RID_* value of the keyword,
+ and C_RID_YYCODE is the token number wanted by Yacc. */
+#define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID)
-/* In a RECORD_TYPE, a sorted array of the fields of the type. */
-struct lang_type
+struct lang_type GTY(())
{
- int len;
- tree elts[1];
+ /* In a RECORD_TYPE, a sorted array of the fields of the type. */
+ struct sorted_fields_type * GTY ((reorder ("resort_sorted_fields"))) s;
+ /* In an ENUMERAL_TYPE, the min and max values. */
+ tree enum_min;
+ tree enum_max;
};
-/* Mark which labels are explicitly declared.
- These may be shadowed, and may be referenced from nested functions. */
-#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
-
/* Record whether a type or decl was written with nonconstant size.
Note that TYPE_SIZE may have simplified to a constant. */
-#define C_TYPE_VARIABLE_SIZE(type) TYPE_LANG_FLAG_1 (type)
-#define C_DECL_VARIABLE_SIZE(type) DECL_LANG_FLAG_0 (type)
+#define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE)
+#define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE)
+
+/* Record whether a typedef for type `int' was actually `signed int'. */
+#define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP)
-/* Record in each node resulting from a binary operator
- what operator was specified for it. */
-#define C_EXP_ORIGINAL_CODE(exp) ((enum tree_code) TREE_COMPLEXITY (exp))
+/* For a FUNCTION_DECL, nonzero if it was defined without an explicit
+ return type. */
+#define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP)
-#if 0 /* Not used. */
-/* Record whether a decl for a function or function pointer has
- already been mentioned (in a warning) because it was called
- but didn't have a prototype. */
-#define C_MISSING_PROTOTYPE_WARNED(decl) DECL_LANG_FLAG_2(decl)
-#endif
+/* For a FUNCTION_DECL, nonzero if it was an implicit declaration. */
+#define C_DECL_IMPLICIT(EXP) DECL_LANG_FLAG_2 (EXP)
-/* Store a value in that field. */
-#define C_SET_EXP_ORIGINAL_CODE(exp, code) \
- (TREE_COMPLEXITY (exp) = (int) (code))
+/* For FUNCTION_DECLs, evaluates true if the decl is built-in but has
+ been declared. */
+#define C_DECL_DECLARED_BUILTIN(EXP) DECL_LANG_FLAG_3 (EXP)
-/* Record whether a typedef for type `int' was actually `signed int'. */
-#define C_TYPEDEF_EXPLICITLY_SIGNED(exp) DECL_LANG_FLAG_1 ((exp))
+/* Record whether a decl was declared register. This is strictly a
+ front-end flag, whereas DECL_REGISTER is used for code generation;
+ they may differ for structures with volatile fields. */
+#define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4 (EXP)
-/* Nonzero for a declaration of a built in function if there has been no
- occasion that would declare the function in ordinary C.
- Using the function draws a pedantic warning in this case. */
-#define C_DECL_ANTICIPATED(exp) DECL_LANG_FLAG_3 ((exp))
+/* Nonzero for a decl which either doesn't exist or isn't a prototype.
+ N.B. Could be simplified if all built-in decls had complete prototypes
+ (but this is presently difficult because some of them need FILE*). */
+#define C_DECL_ISNT_PROTOTYPE(EXP) \
+ (EXP == 0 \
+ || (TYPE_ARG_TYPES (TREE_TYPE (EXP)) == 0 \
+ && !DECL_BUILT_IN (EXP)))
/* For FUNCTION_TYPE, a hidden list of types of arguments. The same as
TYPE_ARG_TYPES for functions with prototypes, but created for functions
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. */
-#define C_PROMOTING_INTEGER_TYPE_P(t) \
- (TREE_CODE ((t)) == INTEGER_TYPE \
- && (TYPE_MAIN_VARIANT (t) == char_type_node \
- || TYPE_MAIN_VARIANT (t) == signed_char_type_node \
- || TYPE_MAIN_VARIANT (t) == unsigned_char_type_node \
- || TYPE_MAIN_VARIANT (t) == short_integer_type_node \
- || TYPE_MAIN_VARIANT (t) == short_unsigned_type_node))
-
-/* In a VAR_DECL, means the variable is really an iterator. */
-#define ITERATOR_P(D) (DECL_LANG_FLAG_4(D))
-
-/* In a VAR_DECL for an iterator, means we are within
- an explicit loop over that iterator. */
-#define ITERATOR_BOUND_P(NODE) ((NODE)->common.readonly_flag)
-\f
-/* 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 *));
+#define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_LANG_SLOT_1 (NODE)
+
+/* Record parser information about an expression that is irrelevant
+ for code generation alongside a tree representing its value. */
+struct c_expr
+{
+ /* The value of the expression. */
+ tree value;
+ /* Record the original binary operator of an expression, which may
+ have been changed by fold, STRING_CST for unparenthesised string
+ constants, or ERROR_MARK for other expressions (including
+ parenthesized expressions). */
+ enum tree_code original_code;
+};
+
+/* Save and restore the variables in this file and elsewhere
+ that keep track of the progress of compilation of the current function.
+ Used for nested functions. */
+
+struct language_function GTY(())
+{
+ struct c_language_function base;
+ tree x_break_label;
+ tree x_cont_label;
+ struct c_switch * GTY((skip)) x_switch_stack;
+ tree arg_info;
+ int returns_value;
+ int returns_null;
+ int returns_abnormally;
+ int warn_about_return_type;
+ int extern_inline;
+};
+
\f
+/* in c-parse.in */
+extern void c_parse_init (void);
+
/* 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));
-extern void c_expand_expr_stmt PROTO((tree));
-/* Validate the expression after `case' and apply default promotions. */
-extern tree check_case_value PROTO((tree));
-/* 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 tree convert_and_check PROTO((tree, tree));
-extern void overflow_warning PROTO((tree));
-extern void unsigned_conversion_warning PROTO((tree, tree));
-/* Read the rest of the current #-directive line. */
-extern char *get_directive_line PROTO((FILE *));
-/* Subroutine of build_binary_op, used for comparison operations.
- See if the operands have both been converted from subword integer types
- and, if so, perhaps change them both back to their original type. */
-extern tree shorten_compare PROTO((tree *, tree *, tree *, enum tree_code *));
-/* Prepare expr to be an argument of a TRUTH_NOT_EXPR,
- or validate its data type for an `if' or `while' statement or ?..: exp. */
-extern tree truthvalue_conversion PROTO((tree));
-extern tree type_for_mode PROTO((enum machine_mode, int));
-extern tree type_for_size PROTO((unsigned, int));
-
-/* in c-convert.c */
-extern tree convert PROTO((tree, tree));
+extern void gen_aux_info_record (tree, int, int, int);
/* in c-decl.c */
-/* Standard named or nameless data types of the C compiler. */
-extern tree char_array_type_node;
-extern tree char_type_node;
-extern tree const_ptr_type_node;
-extern tree const_string_type_node;
-extern tree default_function_type;
-extern tree double_ftype_double;
-extern tree double_ftype_double_double;
-extern tree double_type_node;
-extern tree float_type_node;
-extern tree intDI_type_node;
-extern tree intHI_type_node;
-extern tree intQI_type_node;
-extern tree intSI_type_node;
-extern tree int_array_type_node;
-extern tree int_ftype_cptr_cptr_sizet;
-extern tree int_ftype_int;
-extern tree int_ftype_ptr_ptr_int;
-extern tree int_ftype_string_string;
-extern tree integer_type_node;
-extern tree long_double_type_node;
-extern tree long_ftype_long;
-extern tree long_integer_type_node;
-extern tree long_long_integer_type_node;
-extern tree long_long_unsigned_type_node;
-extern tree long_unsigned_type_node;
-extern tree complex_integer_type_node;
-extern tree complex_float_type_node;
-extern tree complex_double_type_node;
-extern tree complex_long_double_type_node;
-extern tree ptr_type_node;
-extern tree ptrdiff_type_node;
-extern tree short_integer_type_node;
-extern tree short_unsigned_type_node;
-extern tree signed_char_type_node;
-extern tree signed_wchar_type_node;
-extern tree string_ftype_ptr_ptr;
-extern tree string_type_node;
-extern tree unsigned_char_type_node;
-extern tree unsigned_intDI_type_node;
-extern tree unsigned_intHI_type_node;
-extern tree unsigned_intQI_type_node;
-extern tree unsigned_intSI_type_node;
-extern tree unsigned_type_node;
-extern tree unsigned_wchar_type_node;
-extern tree void_ftype_ptr_int_int;
-extern tree void_ftype_ptr_ptr_int;
-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 builtin_function PROTO((char *, tree, enum built_in_function function_, char *));
-/* Add qualifiers to a type, in the fashion for C. */
-extern tree c_build_type_variant PROTO((tree, int, int));
-extern int c_decode_option PROTO((char *));
-extern void c_mark_varargs PROTO((void));
-extern tree check_identifier PROTO((tree, tree));
-extern void clear_parm_order PROTO((void));
-extern tree combine_parm_decls PROTO((tree, tree, int));
-extern int complete_array_type PROTO((tree, tree, int));
-extern void declare_parm_level PROTO((int));
-extern tree define_label PROTO((char *, int, tree));
-extern void delete_block PROTO((tree));
-extern void finish_decl PROTO((tree, 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, tree));
-extern tree get_parm_info PROTO((int));
-extern tree getdecls PROTO((void));
-extern tree gettags PROTO((void));
-extern int global_bindings_p PROTO((void));
-extern tree grokfield PROTO((char *, int, tree, tree, tree));
-extern tree groktypename PROTO((tree));
-extern tree groktypename_in_parm_context PROTO((tree));
-extern tree implicitly_declare PROTO((tree));
-extern int in_parm_level_p PROTO((void));
-extern void init_decl_processing PROTO((void));
-extern void insert_block PROTO((tree));
-extern void keep_next_level PROTO((void));
-extern int kept_level_p 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((FILE *, tree, int));
-extern void print_lang_identifier PROTO((FILE *, tree, int));
-extern void print_lang_type 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 tree pushdecl PROTO((tree));
-extern tree pushdecl_top_level PROTO((tree));
-extern void pushlevel PROTO((int));
-extern void pushtag PROTO((tree, tree));
-extern void set_block PROTO((tree));
-extern tree shadow_label PROTO((tree));
-extern void shadow_record_fields 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, 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));
+extern tree c_break_label;
+extern tree c_cont_label;
+
+extern int global_bindings_p (void);
+extern void push_scope (void);
+extern tree pop_scope (void);
+extern void insert_block (tree);
+extern tree pushdecl (tree);
+extern void c_expand_body (tree);
+
+extern void c_init_decl_processing (void);
+extern void c_dup_lang_specific_decl (tree);
+extern void c_print_identifier (FILE *, tree, int);
+extern tree build_array_declarator (tree, tree, bool, bool);
+extern tree build_enumerator (tree, tree);
+extern void check_for_loop_decls (void);
+extern void mark_forward_parm_decls (void);
+extern int complete_array_type (tree, tree, int);
+extern void declare_parm_level (void);
+extern void undeclared_variable (tree);
+extern tree declare_label (tree);
+extern tree define_label (location_t, tree);
+extern void finish_decl (tree, tree, tree);
+extern tree finish_enum (tree, tree, tree);
+extern void finish_function (void);
+extern tree finish_struct (tree, tree, tree);
+extern tree get_parm_info (bool);
+extern tree grokfield (tree, tree, tree);
+extern void split_specs_attrs (tree, tree *, tree *);
+extern tree groktypename (tree);
+extern tree groktypename_in_parm_context (tree);
+extern tree grokparm (tree);
+extern tree implicitly_declare (tree);
+extern void keep_next_level (void);
+extern tree lookup_name (tree);
+extern void pending_xref_error (void);
+extern void c_push_function_context (struct function *);
+extern void c_pop_function_context (struct function *);
+extern void push_parm_decl (tree);
+extern tree pushdecl_top_level (tree);
+extern tree set_array_declarator_inner (tree, tree, bool);
+extern tree builtin_function (const char *, tree, int, enum built_in_class,
+ const char *, tree);
+extern void shadow_tag (tree);
+extern void shadow_tag_warned (tree, int);
+extern tree start_enum (tree);
+extern int start_function (tree, tree, tree);
+extern tree start_decl (tree, tree, bool, tree);
+extern tree start_struct (enum tree_code, tree);
+extern void store_parm_decls (void);
+extern void store_parm_decls_from (tree);
+extern tree xref_tag (enum tree_code, tree);
+extern int c_expand_decl (tree);
+extern tree build_c_parm (tree, tree, tree);
+extern tree build_attrs_declarator (tree, tree);
+extern tree build_function_declarator (tree, tree);
+extern tree make_pointer_declarator (tree, tree);
+
+/* in c-objc-common.c */
+extern int c_disregard_inline_limits (tree);
+extern int c_cannot_inline_tree_fn (tree *);
+extern bool c_objc_common_init (void);
+extern bool c_missing_noreturn_ok_p (tree);
+extern tree c_objc_common_truthvalue_conversion (tree expr);
+extern int defer_fn (tree);
+extern bool c_warn_unused_global_decl (tree);
+extern void c_initialize_diagnostics (diagnostic_context *);
+
+#define c_build_type_variant(TYPE, CONST_P, VOLATILE_P) \
+ c_build_qualified_type ((TYPE), \
+ ((CONST_P) ? TYPE_QUAL_CONST : 0) | \
+ ((VOLATILE_P) ? TYPE_QUAL_VOLATILE : 0))
/* in c-typeck.c */
-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 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 void iterator_for_loop_start PROTO((tree));
-extern void iterator_for_loop_end PROTO((tree));
-extern void iterator_for_loop_record PROTO((tree));
-extern void push_iterator_stack PROTO((void));
-extern void pop_iterator_stack PROTO((void));
+extern struct c_switch *c_switch_stack;
+
+extern tree require_complete_type (tree);
+extern int same_translation_unit_p (tree, tree);
+extern int comptypes (tree, tree);
+extern tree c_size_in_bytes (tree);
+extern bool c_mark_addressable (tree);
+extern void c_incomplete_type_error (tree, tree);
+extern tree c_type_promotes_to (tree);
+extern tree composite_type (tree, tree);
+extern tree build_component_ref (tree, tree);
+extern tree build_indirect_ref (tree, const char *);
+extern tree build_array_ref (tree, tree);
+extern tree build_external_ref (tree, int);
+extern struct c_expr parser_build_binary_op (enum tree_code, struct c_expr,
+ struct c_expr);
+extern void readonly_error (tree, const char *);
+extern tree build_conditional_expr (tree, tree, tree);
+extern tree build_compound_expr (tree, tree);
+extern tree c_cast_expr (tree, tree);
+extern tree build_c_cast (tree, tree);
+extern tree build_modify_expr (tree, enum tree_code, tree);
+extern void store_init_value (tree, tree);
+extern void error_init (const char *);
+extern void pedwarn_init (const char *);
+extern void maybe_warn_string_init (tree, struct c_expr);
+extern void start_init (tree, tree, int);
+extern void finish_init (void);
+extern void really_start_incremental_init (tree);
+extern void push_init_level (int);
+extern struct c_expr pop_init_level (int);
+extern void set_init_index (tree, tree);
+extern void set_init_label (tree);
+extern void process_init_element (struct c_expr);
+extern tree build_compound_literal (tree, tree);
+extern void pedwarn_c90 (const char *, ...) ATTRIBUTE_PRINTF_1;
+extern void pedwarn_c99 (const char *, ...) ATTRIBUTE_PRINTF_1;
+extern tree c_start_case (tree);
+extern void c_finish_case (tree);
+extern tree build_asm_expr (tree, tree, tree, tree, bool);
+extern tree build_asm_stmt (tree, tree);
+extern tree c_convert_parm_for_inlining (tree, tree, tree, int);
+extern int c_types_compatible_p (tree, tree);
+extern tree c_begin_compound_stmt (bool);
+extern tree c_end_compound_stmt (tree, bool);
+extern void c_finish_if_stmt (location_t, tree, tree, tree, bool);
+extern void c_finish_loop (location_t, tree, tree, tree, tree, tree, bool);
+extern tree c_begin_stmt_expr (void);
+extern tree c_finish_stmt_expr (tree);
+extern tree c_process_expr_stmt (tree);
+extern tree c_finish_expr_stmt (tree);
+extern tree c_finish_return (tree);
+extern tree c_finish_bc_stmt (tree *, bool);
+extern tree c_finish_goto_label (tree);
+extern tree c_finish_goto_ptr (tree);
/* Set to 0 at beginning of a function definition, set to 1 if
a return statement that specifies a return value is seen. */
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;
-
-/* Nonzero means allow type mismatches in conditional expressions;
- just make their values `void'. */
-
-extern int flag_cond_mismatch;
-
-/* Nonzero means don't recognize the keyword `asm'. */
-
-extern int flag_no_asm;
-
-/* Nonzero means environment is hosted (i.e., not freestanding) */
-
-extern int flag_hosted;
-
-/* Nonzero means ignore `#ident' directives. */
-
-extern int flag_no_ident;
-
-/* Nonzero means warn about implicit declarations. */
-
-extern int warn_implicit;
-
-/* Nonzero means give string constants the type `const char *'
- to get extra warnings from them. These warnings will be too numerous
- to be useful, except in thoroughly ANSIfied programs. */
-
-extern int warn_write_strings;
-
-/* Nonzero means warn about sizeof (function) or addition/subtraction
- of function pointers. */
-
-extern int warn_pointer_arith;
-
-/* Nonzero means warn for all old-style non-prototype function decls. */
-
-extern int warn_strict_prototypes;
-
-/* Nonzero means warn about multiple (redundant) decls for the same single
- variable or function. */
-
-extern int warn_redundant_decls;
-
-/* Nonzero means warn about extern declarations of objects not at
- file-scope level and about *all* declarations of functions (whether
- extern or static) not at file-scope level. Note that we exclude
- implicit function declarations. To get warnings about those, use
- -Wimplicit. */
-
-extern int warn_nested_externs;
-
-/* Nonzero means warn about pointer casts that can drop a type qualifier
- from the pointer target type. */
-
-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;
-
-/* Warn about *printf or *scanf format/argument anomalies. */
-
-extern int warn_format;
-
-/* Warn about a subscript that has type char. */
-
-extern int warn_char_subscripts;
-
-/* Warn if a type conversion is done that might have confusing results. */
-
-extern int warn_conversion;
-
-/* Warn if main is suspicious. */
-
-extern int warn_main;
-
-/* Nonzero means do some things the same way PCC does. */
-
-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;
-
-/* Warn if initializer is not completely bracketed. */
-
-extern int warn_missing_braces;
+/* Set to 0 at beginning of a function definition, set to 1 if
+ a call to a noreturn function is seen. */
-/* Warn about comparison of signed and unsigned values. */
+extern int current_function_returns_abnormally;
-extern int warn_sign_compare;
+/* Nonzero means we are reading code that came from a system header file. */
-/* Nonzero means this is a function to call to perform comptypes
- on two record types. */
+extern int system_header_p;
-extern int (*comptypes_record_hook) ();
+/* True means global_bindings_p should return false even if the scope stack
+ says we are in file scope. */
-/* Nonzero means we are reading code that came from a system header file. */
+extern bool c_override_global_bindings_to_false;
-extern int system_header_p;
+/* True means we've initialized exception handling. */
+extern bool c_eh_initialized_p;
-/* Nonzero enables objc features. */
+/* In c-decl.c */
+extern void c_finish_incomplete_decl (tree);
+extern void c_write_global_declarations (void);
-extern int doing_objc_thang;
+/* In order for the format checking to accept the C frontend
+ diagnostic framework extensions, you must include this file before
+ toplev.h, not after. */
+#define GCC_DIAG_STYLE __gcc_cdiag__
-#endif /* not _C_TREE_H */
+#endif /* ! GCC_C_TREE_H */
OSDN Git Service
