/* Definitions for c-common.c.
Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
+ 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
This file is part of GCC.
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
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-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. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#ifndef GCC_C_COMMON_H
#define GCC_C_COMMON_H
0: TREE_NEGATED_INT (in INTEGER_CST).
IDENTIFIER_MARKED (used by search routines).
DECL_PRETTY_FUNCTION_P (in VAR_DECL)
- STMT_EXPR_NO_SCOPE (in STMT_EXPR)
1: C_DECLARED_LABEL_FLAG (in LABEL_DECL)
- STMT_IS_FULL_EXPR_P (in _STMT)
STATEMENT_LIST_STMT_EXPR (in STATEMENT_LIST)
2: unused
3: STATEMENT_LIST_HAS_LABEL (in STATEMENT_LIST)
RID_VOLATILE, RID_SIGNED, RID_AUTO, RID_RESTRICT,
/* C extensions */
- RID_COMPLEX, RID_THREAD,
+ RID_COMPLEX, RID_THREAD, RID_SAT,
/* C++ */
RID_FRIEND, RID_VIRTUAL, RID_EXPLICIT, RID_EXPORT, RID_MUTABLE,
RID_ASM, RID_TYPEOF, RID_ALIGNOF, RID_ATTRIBUTE, RID_VA_ARG,
RID_EXTENSION, RID_IMAGPART, RID_REALPART, RID_LABEL, RID_CHOOSE_EXPR,
RID_TYPES_COMPATIBLE_P,
+ RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128,
+ RID_FRACT, RID_ACCUM,
/* Too many ways of getting the name of a function as a string */
RID_FUNCTION_NAME, RID_PRETTY_FUNCTION_NAME, RID_C99_FUNCTION_NAME,
RID_PUBLIC, RID_PRIVATE, RID_PROTECTED,
RID_TEMPLATE, RID_NULL, RID_CATCH,
RID_DELETE, RID_FALSE, RID_NAMESPACE,
- RID_NEW, RID_OFFSETOF, RID_OPERATOR,
- RID_THIS, RID_THROW, RID_TRUE,
- RID_TRY, RID_TYPENAME, RID_TYPEID,
+ RID_NEW, RID_OFFSETOF, RID_OPERATOR,
+ RID_THIS, RID_THROW, RID_TRUE,
+ RID_TRY, RID_TYPENAME, RID_TYPEID,
RID_USING,
/* casts */
RID_CONSTCAST, RID_DYNCAST, RID_REINTCAST, RID_STATCAST,
+ /* C++ extensions */
+ RID_HAS_NOTHROW_ASSIGN, RID_HAS_NOTHROW_CONSTRUCTOR,
+ RID_HAS_NOTHROW_COPY, RID_HAS_TRIVIAL_ASSIGN,
+ RID_HAS_TRIVIAL_CONSTRUCTOR, RID_HAS_TRIVIAL_COPY,
+ RID_HAS_TRIVIAL_DESTRUCTOR, RID_HAS_VIRTUAL_DESTRUCTOR,
+ RID_IS_ABSTRACT, RID_IS_BASE_OF,
+ RID_IS_CONVERTIBLE_TO, RID_IS_CLASS,
+ RID_IS_EMPTY, RID_IS_ENUM,
+ RID_IS_POD, RID_IS_POLYMORPHIC,
+ RID_IS_UNION,
+
+ /* C++0x */
+ RID_STATIC_ASSERT, RID_DECLTYPE,
+
/* Objective-C */
RID_AT_ENCODE, RID_AT_END,
RID_AT_CLASS, RID_AT_ALIAS, RID_AT_DEFS,
RID_AT_PRIVATE, RID_AT_PROTECTED, RID_AT_PUBLIC,
- RID_AT_PROTOCOL, RID_AT_SELECTOR,
+ RID_AT_PROTOCOL, RID_AT_SELECTOR,
RID_AT_THROW, RID_AT_TRY, RID_AT_CATCH,
RID_AT_FINALLY, RID_AT_SYNCHRONIZED,
RID_AT_INTERFACE,
RID_FIRST_MODIFIER = RID_STATIC,
RID_LAST_MODIFIER = RID_ONEWAY,
+ RID_FIRST_CXX0X = RID_STATIC_ASSERT,
+ RID_LAST_CXX0X = RID_DECLTYPE,
RID_FIRST_AT = RID_AT_ENCODE,
RID_LAST_AT = RID_AT_IMPLEMENTATION,
RID_FIRST_PQ = RID_IN,
CTI_PRETTY_FUNCTION_NAME_DECL,
CTI_C99_FUNCTION_NAME_DECL,
CTI_SAVED_FUNCTION_NAME_DECLS,
-
+
CTI_VOID_ZERO,
+ CTI_NULL,
+
CTI_MAX
};
/* A node for `((void) 0)'. */
#define void_zero_node c_global_trees[CTI_VOID_ZERO]
+/* The node for C++ `__null'. */
+#define null_node c_global_trees[CTI_NULL]
+
extern GTY(()) tree c_global_trees[CTI_MAX];
/* In a RECORD_TYPE, a sorted array of the fields of the type, not a
These may be shadowed, and may be referenced from nested functions. */
#define C_DECLARED_LABEL_FLAG(label) TREE_LANG_FLAG_1 (label)
-/* Flag strings given by __FUNCTION__ and __PRETTY_FUNCTION__ for a
- warning if they undergo concatenation. */
-#define C_ARTIFICIAL_STRING_P(NODE) TREE_LANG_FLAG_0 (NODE)
-
typedef enum c_language_kind
{
clk_c = 0, /* C90, C94 or C99 */
#define c_dialect_cxx() (c_language & clk_cxx)
#define c_dialect_objc() (c_language & clk_objc)
+extern bool lang_fortran;
+
/* Information about a statement tree. */
struct stmt_tree_s GTY(()) {
- /* The current statment list being collected. */
+ /* The current statement list being collected. */
tree x_cur_stmt_list;
/* In C++, Nonzero if we should treat statements as full
struct stmt_tree_s x_stmt_tree;
};
-/* When building a statement-tree, this is the current statment list
+/* When building a statement-tree, this is the current statement list
being collected. It's TREE_CHAIN is a back-pointer to the previous
- statment list. */
+ statement list. */
#define cur_stmt_list (current_stmt_tree ()->x_cur_stmt_list)
/* Language-specific hooks. */
-extern void (*lang_expand_function_end) (void);
-
-/* Callback that determines if it's ok for a function to have no
- noreturn attribute. */
-extern int (*lang_missing_noreturn_ok_p) (tree);
-
/* If non-NULL, this function is called after a precompile header file
is loaded. */
extern void (*lang_post_pch_load) (void);
extern void push_file_scope (void);
extern void pop_file_scope (void);
-extern int yyparse (void);
extern stmt_tree current_stmt_tree (void);
extern tree push_stmt_list (void);
extern tree pop_stmt_list (tree);
extern tree add_stmt (tree);
extern void push_cleanup (tree, tree, bool);
+extern tree pushdecl_top_level (tree);
+extern tree pushdecl (tree);
+extern tree build_modify_expr (tree, enum tree_code, tree);
+extern tree build_indirect_ref (tree, const char *);
extern int c_expand_decl (tree);
extern int field_decl_cmp (const void *, const void *);
-extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
- void *);
-extern bool has_c_linkage (tree decl);
+extern void resort_sorted_fields (void *, void *, gt_pointer_operator,
+ void *);
+extern bool has_c_linkage (const_tree decl);
\f
/* Switches common to the C front ends. */
extern char flag_no_output;
-/* Nonzero means dump macros in some fashion; contains the 'D', 'M' or
- 'N' of the command line switch. */
+/* Nonzero means dump macros in some fashion; contains the 'D', 'M',
+ 'N' or 'U' of the command line switch. */
extern char flag_dump_macros;
extern int flag_short_wchar;
+/* Nonzero means allow implicit conversions between vectors with
+ differing numbers of subparts and/or differing element types. */
+extern int flag_lax_vector_conversions;
+
/* Nonzero means allow Microsoft extensions without warnings or errors. */
extern int flag_ms_extensions;
/* Nonzero means to treat bitfields as signed unless they say `unsigned'. */
extern int flag_signed_bitfields;
-extern int explicit_flag_signed_bitfields;
-
-/* Nonzero means warn about deprecated conversion from string constant to
- `char *'. */
-
-extern int warn_write_strings;
-/* Warn about #pragma directives that are not recognized. */
+/* Warn about #pragma directives that are not recognized. */
-extern int warn_unknown_pragmas; /* Tri state variable. */
+extern int warn_unknown_pragmas; /* Tri state variable. */
/* Warn about format/argument anomalies in calls to formatted I/O functions
(*printf, *scanf, strftime, strfmon, etc.). */
extern int flag_gen_declaration;
-/* Generate code for GNU or NeXT runtime environment. */
-
-extern int flag_next_runtime;
-
/* Tells the compiler that this is a special run. Do not perform any
compiling, instead we are to test some platform dependent features
and output a C header file with appropriate definitions. */
extern int flag_check_new;
+/* The supported C++ dialects. */
+
+enum cxx_dialect {
+ /* C++98 */
+ cxx98,
+ /* Experimental features that are likely to become part of
+ C++0x. */
+ cxx0x
+};
+
+/* The C++ dialect being used. C++98 is the default. */
+extern enum cxx_dialect cxx_dialect;
+
/* Nonzero if we want the new ISO rules for pushing a new scope for `for'
initialization variables.
0: Old rules, set by -fno-for-scope.
extern int flag_use_cxa_atexit;
-/* Nonzero means make the default pedwarns warnings instead of errors.
- The value of this flag is ignored if -pedantic is specified. */
+/* Nonzero to use __cxa_get_exception_ptr in the C++ exception-handling
+ logic. */
-extern int flag_permissive;
+extern int flag_use_cxa_get_exception_ptr;
/* Nonzero means to implement standard semantics for exception
specifications, calling unexpected if an exception is thrown that
extern int warn_implicit;
+/* Warn about using __null (as NULL in C++) as sentinel. For code compiled
+ with GCC this doesn't matter as __null is guaranteed to have the right
+ size. */
+
+extern int warn_strict_null_sentinel;
+
/* Maximum template instantiation depth. This limit is rather
arbitrary, but it exists to limit the time it takes to notice
infinite template instantiations. */
extern const char *fname_as_string (int);
extern tree fname_decl (unsigned, tree);
-extern void check_function_arguments (tree, tree);
+extern void check_function_arguments (tree, int, tree *, tree);
extern void check_function_arguments_recurse (void (*)
(void *, tree,
unsigned HOST_WIDE_INT),
void *, tree,
unsigned HOST_WIDE_INT);
-extern void check_function_format (tree, tree);
+extern void check_function_format (tree, int, tree *);
extern void set_Wformat (int);
extern tree handle_format_attribute (tree *, tree, tree, int, bool *);
extern tree handle_format_arg_attribute (tree *, tree, tree, int, bool *);
extern bool c_common_missing_argument (const char *opt, size_t code);
extern tree c_common_type_for_mode (enum machine_mode, int);
extern tree c_common_type_for_size (unsigned int, int);
+extern tree c_common_fixed_point_type_for_size (unsigned int, unsigned int,
+ int, int);
extern tree c_common_unsigned_type (tree);
extern tree c_common_signed_type (tree);
extern tree c_common_signed_or_unsigned_type (int, tree);
+extern tree c_build_bitfield_integer_type (unsigned HOST_WIDE_INT, int);
+extern bool decl_with_nonnull_addr_p (const_tree);
extern tree c_common_truthvalue_conversion (tree);
extern void c_apply_type_quals_to_decl (int, tree);
-extern tree c_sizeof_or_alignof_type (tree, enum tree_code, int);
+extern tree c_sizeof_or_alignof_type (tree, bool, int);
extern tree c_alignof_expr (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 (enum tree_code);
+extern void binary_op_error (enum tree_code, tree, tree);
extern tree fix_string_type (tree);
struct varray_head_tag;
extern void constant_expression_warning (tree);
+extern void constant_expression_error (tree);
+extern bool strict_aliasing_warning (tree, tree, tree);
+extern void empty_if_body_warning (tree, tree);
+extern void warnings_for_convert_and_check (tree, tree, tree);
extern tree convert_and_check (tree, tree);
extern void overflow_warning (tree);
-extern void unsigned_conversion_warning (tree, tree);
+extern void warn_logical_operator (enum tree_code, tree, tree);
+extern void check_main_parameter_types (tree decl);
extern bool c_determine_visibility (tree);
+extern bool same_scalar_type_ignoring_signedness (tree, tree);
-#define c_sizeof(T) c_sizeof_or_alignof_type (T, SIZEOF_EXPR, 1)
-#define c_alignof(T) c_sizeof_or_alignof_type (T, ALIGNOF_EXPR, 1)
+#define c_sizeof(T) c_sizeof_or_alignof_type (T, true, 1)
+#define c_alignof(T) c_sizeof_or_alignof_type (T, false, 1)
/* Subroutine of build_binary_op, used for comparison operations.
See if the operands have both been converted from subword integer types
frontends. */
extern void c_common_nodes_and_builtins (void);
+extern void set_builtin_user_assembler_name (tree decl, const char *asmspec);
+
extern void disable_builtin_function (const char *);
+extern void set_compound_literal_name (tree decl);
+
extern tree build_va_arg (tree, tree);
extern unsigned int c_common_init_options (unsigned int, const char **);
extern bool c_common_init (void);
extern void c_common_finish (void);
extern void c_common_parse_file (int);
-extern HOST_WIDE_INT c_common_get_alias_set (tree);
+extern alias_set_type c_common_get_alias_set (tree);
extern void c_register_builtin_type (tree, const char*);
-extern bool c_promoting_integer_type_p (tree);
-extern int self_promoting_args_p (tree);
+extern bool c_promoting_integer_type_p (const_tree);
+extern int self_promoting_args_p (const_tree);
extern tree strip_array_types (tree);
extern tree strip_pointer_operator (tree);
+extern tree strip_pointer_or_array_types (tree);
+extern HOST_WIDE_INT c_common_to_target_charset (HOST_WIDE_INT);
/* This is the basic parsing function. */
extern void c_parse_file (void);
/* This is misnamed, it actually performs end-of-compilation processing. */
extern void finish_file (void);
-/* These macros provide convenient access to the various _STMT nodes. */
-/* Nonzero if this statement should be considered a full-expression,
- i.e., if temporaries created during this statement should have
- their destructors run at the end of this statement. (In C, this
- will always be false, since there are no destructors.) */
-#define STMT_IS_FULL_EXPR_P(NODE) TREE_LANG_FLAG_1 ((NODE))
+/* These macros provide convenient access to the various _STMT nodes. */
/* Nonzero if a given STATEMENT_LIST represents the outermost binding
if a statement expression. */
#define STATEMENT_LIST_HAS_LABEL(NODE) \
TREE_LANG_FLAG_3 (STATEMENT_LIST_CHECK (NODE))
-/* WHILE_STMT accessors. These give access to the condition of the
- while statement and the body of the while statement, respectively. */
-#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
-#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
-
-/* DO_STMT accessors. These give access to the condition of the do
- statement and the body of the do statement, respectively. */
-#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
-#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
-
-/* EXPR_STMT accessor. This gives the expression associated with an
- expression statement. */
-#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
-
-/* FOR_STMT accessors. These give access to the init statement,
- condition, update expression, and body of the for statement,
- respectively. */
-#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
-#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
-#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
-#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
-
-#define SWITCH_TYPE(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 2)
-
-/* STMT_EXPR accessor. */
-#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
-
-/* Nonzero if this statement-expression does not have an associated scope. */
-#define STMT_EXPR_NO_SCOPE(NODE) \
- TREE_LANG_FLAG_0 (STMT_EXPR_CHECK (NODE))
-
/* COMPOUND_LITERAL_EXPR accessors. */
#define COMPOUND_LITERAL_EXPR_DECL_STMT(NODE) \
TREE_OPERAND (COMPOUND_LITERAL_EXPR_CHECK (NODE), 0)
#undef DEFTREECODE
-#define c_common_stmt_codes \
- EXPR_STMT, FOR_STMT, \
- WHILE_STMT, DO_STMT, \
- BREAK_STMT, CONTINUE_STMT, SWITCH_STMT
-
-/* TRUE if a code represents a statement. The front end init
- langhook should take care of initialization of this array. */
-extern bool statement_code_p[MAX_TREE_CODES];
-
-#define STATEMENT_CODE_P(CODE) statement_code_p[(int) (CODE)]
-
-#define INIT_STATEMENT_CODES(STMT_CODES) \
- do { \
- unsigned int i; \
- memset (&statement_code_p, 0, sizeof (statement_code_p)); \
- for (i = 0; i < ARRAY_SIZE (STMT_CODES); i++) \
- statement_code_p[STMT_CODES[i]] = true; \
- } while (0)
-
-extern int stmts_are_full_exprs_p (void);
-extern int anon_aggr_type_p (tree);
+extern int anon_aggr_type_p (const_tree);
/* For a VAR_DECL that is an anonymous union, these are the various
sub-variables that make up the anonymous union. */
extern tree do_case (tree, tree);
extern tree build_stmt (enum tree_code, ...);
extern tree build_case_label (tree, tree, tree);
-extern tree build_continue_stmt (void);
-extern tree build_break_stmt (void);
/* These functions must be defined by each front-end which implements
a variant of the C language. They are used in c-common.c. */
extern tree build_unary_op (enum tree_code, tree, int);
extern tree build_binary_op (enum tree_code, tree, tree, int);
-extern int lvalue_p (tree);
+extern tree perform_integral_promotions (tree);
+
+/* These functions must be defined by each front-end which implements
+ a variant of the C language. They are used by port files. */
+
extern tree default_conversion (tree);
/* Given two integer or real types, return the type for their sum.
extern tree c_add_case_label (splay_tree, tree, tree, tree, tree);
-extern void c_do_switch_warnings (splay_tree, tree);
+extern void c_do_switch_warnings (splay_tree, location_t, tree, tree);
extern tree build_function_call (tree, tree);
+extern tree resolve_overloaded_builtin (tree, tree);
+
extern tree finish_label_address_expr (tree);
/* Same function prototype, but the C and C++ front ends have
different implementations. Used in c-common.c. */
extern tree lookup_label (tree);
+extern tree lookup_name (tree);
-extern int vector_types_convertible_p (tree t1, tree t2);
+extern bool vector_types_convertible_p (const_tree t1, const_tree t2, bool emit_lax_note);
extern rtx c_expand_expr (tree, rtx, enum machine_mode, int, rtx *);
extern tree c_staticp (tree);
-extern int c_common_unsafe_for_reeval (tree);
-
extern void init_c_lex (void);
extern void c_cpp_builtins (cpp_reader *);
extern void verify_sequence_points (tree);
-extern tree fold_offsetof (tree);
+extern tree fold_offsetof (tree, tree);
+
+/* Places where an lvalue, or modifiable lvalue, may be required.
+ Used to select diagnostic messages in lvalue_error and
+ readonly_error. */
+enum lvalue_use {
+ lv_assign,
+ lv_increment,
+ lv_decrement,
+ lv_addressof,
+ lv_asm
+};
+
+extern void lvalue_error (enum lvalue_use);
+
+extern int complete_array_type (tree *, tree, bool);
+
+extern tree builtin_type_for_size (int, bool);
+
+extern void warn_array_subscript_with_type_char (tree);
+extern void warn_about_parentheses (enum tree_code, enum tree_code,
+ enum tree_code);
+extern void warn_for_unused_label (tree label);
+extern void warn_for_div_by_zero (tree divisor);
+
/* In c-gimplify.c */
extern void c_genericize (tree);
const char *orig);
extern void c_common_write_pch (void);
extern void c_common_no_more_pch (void);
-extern void c_common_pch_pragma (cpp_reader *pfile);
+extern void c_common_pch_pragma (cpp_reader *pfile, const char *);
+extern void c_common_print_pch_checksum (FILE *f);
+
+/* In *-checksum.c */
+extern const unsigned char executable_checksum[16];
extern void builtin_define_with_value (const char *, const char *, int);
extern void c_stddef_cpp_builtins (void);
extern tree objc_is_object_ptr (tree);
extern void objc_check_decl (tree);
extern int objc_is_reserved_word (tree);
-extern int objc_comptypes (tree, tree, int);
+extern bool objc_compare_types (tree, tree, int, tree);
+extern void objc_volatilize_decl (tree);
+extern bool objc_type_quals_match (tree, tree);
+extern tree objc_rewrite_function_call (tree, tree);
extern tree objc_message_selector (void);
extern tree objc_lookup_ivar (tree, tree);
extern void objc_clear_super_receiver (void);
extern void objc_finish_implementation (void);
extern void objc_set_visibility (int);
extern void objc_set_method_type (enum tree_code);
-extern tree objc_build_method_signature (tree, tree, tree);
+extern tree objc_build_method_signature (tree, tree, tree, bool);
extern void objc_add_method_declaration (tree);
extern void objc_start_method_definition (tree);
extern void objc_finish_method_definition (tree);
extern tree objc_build_keyword_decl (tree, tree, tree);
extern tree objc_build_throw_stmt (tree);
extern void objc_begin_try_stmt (location_t, tree);
-extern void objc_finish_try_stmt (void);
+extern tree objc_finish_try_stmt (void);
extern void objc_begin_catch_clause (tree);
extern void objc_finish_catch_clause (void);
extern void objc_build_finally_clause (location_t, tree);
-extern void objc_build_synchronized (location_t, tree, tree);
+extern tree objc_build_synchronized (location_t, tree, tree);
extern int objc_static_init_needed_p (void);
extern tree objc_generate_static_init_call (tree);
+extern tree objc_generate_write_barrier (tree, enum tree_code, tree);
/* The following are provided by the C and C++ front-ends, and called by
ObjC/ObjC++. */
extern void preprocess_file (cpp_reader *);
extern void pp_file_change (const struct line_map *);
extern void pp_dir_change (cpp_reader *, const char *);
+extern bool check_missing_format_attribute (tree, tree);
+
+/* In c-omp.c */
+extern tree c_finish_omp_master (tree);
+extern tree c_finish_omp_critical (tree, tree);
+extern tree c_finish_omp_ordered (tree);
+extern void c_finish_omp_barrier (void);
+extern tree c_finish_omp_atomic (enum tree_code, tree, tree);
+extern void c_finish_omp_flush (void);
+extern tree c_finish_omp_for (location_t, tree, tree, tree, tree, tree, tree);
+extern void c_split_parallel_clauses (tree, tree *, tree *);
+extern enum omp_clause_default_kind c_omp_predetermined_sharing (tree);
+
+/* Not in c-omp.c; provided by the front end. */
+extern bool c_omp_sharing_predetermined (tree);
+extern tree c_omp_remap_decl (tree, bool);
+
+/* In order for the format checking to accept the C frontend
+ diagnostic framework extensions, you must include this file before
+ toplev.h, not after. The C front end formats are a subset of those
+ for C++, so they are the appropriate set to use in common code;
+ cp-tree.h overrides this for C++. */
+#ifndef GCC_DIAG_STYLE
+#define GCC_DIAG_STYLE __gcc_cdiag__
+#endif
#endif /* ! GCC_C_COMMON_H */
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