X-Git-Url: http://git.sourceforge.jp/view?p=pf3gnuchains%2Fgcc-fork.git;a=blobdiff_plain;f=gcc%2Fc-tree.h;h=508567a91d9641cf2e29ef86f38199c1545e51ee;hp=793c7f01dc54337568ba69f94494cb5217225b02;hb=2a28135353b97956c0ad51a9fe00868f24458a06;hpb=9b47dd7dd8e8fc3c470abfbd8a54abade680b9f6 diff --git a/gcc/c-tree.h b/gcc/c-tree.h index 793c7f01dc5..508567a91d9 100644 --- a/gcc/c-tree.h +++ b/gcc/c-tree.h @@ -1,5 +1,6 @@ /* Definitions for C parsing and type checking. - Copyright (C) 1987, 1993, 1994, 1995 Free Software Foundation, Inc. + Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, + 1999, 2000 Free Software Foundation, Inc. This file is part of GNU CC. @@ -15,60 +16,72 @@ 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, 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 GCC_C_TREE_H +#define GCC_C_TREE_H + +#include "c-common.h" /* Language-dependent contents of an identifier. */ /* 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. */ + be referenced after they fall out of scope, so they can't be global. + + The rid_code field is used for keywords. It is in all + lang_identifier nodes, because some keywords are only special in a + particular context. */ struct lang_identifier { - struct tree_identifier ignore; + struct c_common_identifier ignore; tree global_value, local_value, label_value, implicit_decl; tree error_locus, limbo_value; }; +/* Wrapping c_lang_decl in another struct is an unfortunate + necessity. */ + +struct lang_decl +{ + struct c_lang_decl base; +}; + /* 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) + (((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. 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) @@ -79,6 +92,12 @@ extern int pedantic; nonzero if the definition of the type has already started. */ #define C_TYPE_BEING_DEFINED(type) TYPE_LANG_FLAG_0 (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 { @@ -86,19 +105,11 @@ struct lang_type tree elts[1]; }; -/* 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) -/* 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)) - #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 @@ -108,7 +119,7 @@ struct lang_type /* 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)) @@ -123,250 +134,125 @@ struct lang_type without prototypes. */ #define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_NONCOPIED_PARTS (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) /* 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 *)); +extern tree lookup_interface PARAMS ((tree)); +extern tree is_class_name PARAMS ((tree)); +extern void maybe_objc_check_decl PARAMS ((tree)); +extern void finish_file PARAMS ((void)); +extern int maybe_objc_comptypes PARAMS ((tree, tree, int)); +extern tree maybe_building_objc_message_expr PARAMS ((void)); +extern int recognize_objc_keyword PARAMS ((void)); +extern tree lookup_objc_ivar PARAMS ((tree)); +/* in c-parse.in */ +extern void c_parse_init PARAMS ((void)); +extern int yyparse_1 PARAMS ((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 STDIO_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 PARAMS ((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 tree finish_enum PROTO((tree, tree)); -extern void finish_function PROTO((int)); -extern tree finish_struct PROTO((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 STDIO_PROTO((FILE *, tree, - int)); -extern void print_lang_identifier STDIO_PROTO((FILE *, tree, - int)); -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 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, int)); -extern tree start_decl PROTO((tree, tree, int)); -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 build_array_declarator PARAMS ((tree, tree, int, int)); +extern tree build_enumerator PARAMS ((tree, tree)); + +#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)) +extern int c_decode_option PARAMS ((int, char **)); +extern void c_mark_varargs PARAMS ((void)); +extern void check_for_loop_decls PARAMS ((void)); +extern tree check_identifier PARAMS ((tree, tree)); +extern void clear_parm_order PARAMS ((void)); +extern tree combine_parm_decls PARAMS ((tree, tree, int)); +extern int complete_array_type PARAMS ((tree, tree, int)); +extern void declare_parm_level PARAMS ((int)); +extern tree define_label PARAMS ((const char *, int, + tree)); +extern void delete_block PARAMS ((tree)); +extern void finish_decl PARAMS ((tree, tree, tree)); +extern void finish_decl_top_level PARAMS ((tree, tree, tree)); +extern tree finish_enum PARAMS ((tree, tree, tree)); +extern void finish_function PARAMS ((int)); +extern tree finish_struct PARAMS ((tree, tree, tree)); +extern tree get_parm_info PARAMS ((int)); +extern tree grokfield PARAMS ((const char *, int, tree, tree, tree)); +extern tree groktypename PARAMS ((tree)); +extern tree groktypename_in_parm_context PARAMS ((tree)); +extern tree implicitly_declare PARAMS ((tree)); +extern void implicit_decl_warning PARAMS ((tree)); +extern int in_parm_level_p PARAMS ((void)); +extern void keep_next_level PARAMS ((void)); +extern int kept_level_p PARAMS ((void)); +extern tree lookup_name PARAMS ((tree)); +extern tree lookup_name_current_level PARAMS ((tree)); +extern tree lookup_name_current_level_global PARAMS ((tree)); +extern void parmlist_tags_warning PARAMS ((void)); +extern void pending_xref_error PARAMS ((void)); +extern void mark_c_function_context PARAMS ((struct function *)); +extern void push_c_function_context PARAMS ((struct function *)); +extern void pop_c_function_context PARAMS ((struct function *)); +extern void pop_label_level PARAMS ((void)); +extern void push_label_level PARAMS ((void)); +extern void push_parm_decl PARAMS ((tree)); +extern tree pushdecl_top_level PARAMS ((tree)); +extern void pushtag PARAMS ((tree, tree)); +extern tree set_array_declarator_type PARAMS ((tree, tree, int)); +extern tree shadow_label PARAMS ((tree)); +extern void shadow_record_fields PARAMS ((tree)); +extern void shadow_tag PARAMS ((tree)); +extern void shadow_tag_warned PARAMS ((tree, int)); +extern tree start_enum PARAMS ((tree)); +extern int start_function PARAMS ((tree, tree, tree, + tree)); +extern tree start_decl PARAMS ((tree, tree, int, + tree, tree)); +extern tree start_struct PARAMS ((enum tree_code, tree)); +extern void store_parm_decls PARAMS ((void)); +extern tree xref_tag PARAMS ((enum tree_code, tree)); +extern tree c_begin_compound_stmt PARAMS ((void)); +extern void c_expand_decl_stmt PARAMS ((tree)); /* 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 tree require_complete_type PARAMS ((tree)); +extern int comptypes PARAMS ((tree, tree)); +extern tree c_sizeof PARAMS ((tree)); +extern tree c_sizeof_nowarn PARAMS ((tree)); +extern tree c_size_in_bytes PARAMS ((tree)); +extern tree c_alignof PARAMS ((tree)); +extern tree c_alignof_expr PARAMS ((tree)); +extern tree build_component_ref PARAMS ((tree, tree)); +extern tree build_indirect_ref PARAMS ((tree, const char *)); +extern tree build_array_ref PARAMS ((tree, tree)); +extern tree build_external_ref PARAMS ((tree, int)); +extern tree parser_build_binary_op PARAMS ((enum tree_code, + tree, tree)); +extern void readonly_warning PARAMS ((tree, const char *)); +extern tree build_conditional_expr PARAMS ((tree, tree, tree)); +extern tree build_compound_expr PARAMS ((tree)); +extern tree c_cast_expr PARAMS ((tree, tree)); +extern tree build_c_cast PARAMS ((tree, tree)); +extern tree build_modify_expr PARAMS ((tree, enum tree_code, + tree)); +extern void store_init_value PARAMS ((tree, tree)); +extern void error_init PARAMS ((const char *)); +extern void pedwarn_init PARAMS ((const char *)); +extern void start_init PARAMS ((tree, tree, int)); +extern void finish_init PARAMS ((void)); +extern void really_start_incremental_init PARAMS ((tree)); +extern void push_init_level PARAMS ((int)); +extern tree pop_init_level PARAMS ((int)); +extern void set_init_index PARAMS ((tree, tree)); +extern void set_init_label PARAMS ((tree)); +extern void process_init_element PARAMS ((tree)); +extern void pedwarn_c99 PARAMS ((const char *, ...)) + ATTRIBUTE_PRINTF_1; +extern tree c_start_case PARAMS ((tree)); +extern void c_finish_case PARAMS ((void)); +extern tree simple_asm_stmt PARAMS ((tree)); +extern tree build_asm_stmt PARAMS ((tree, tree, tree, + tree, tree)); /* Set to 0 at beginning of a function definition, set to 1 if a return statement that specifies a return value is seen. */ @@ -378,6 +264,11 @@ extern int current_function_returns_value; 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; @@ -391,20 +282,10 @@ extern int flag_cond_mismatch; extern int flag_no_asm; -/* 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. */ @@ -442,45 +323,42 @@ extern int warn_bad_function_cast; 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. */ -/* Nonzero means do some things the same way PCC does. */ - -extern int flag_traditional; +extern int warn_main; /* 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; -/* Nonzero means this is a function to call to perform comptypes - on two record types. */ +/* Warn about comparison of signed and unsigned values. */ + +extern int warn_sign_compare; + +/* Warn about testing equality of floating point numbers. */ + +extern int warn_float_equal; + +/* Warn about multicharacter constants. */ -extern int (*comptypes_record_hook) (); +extern int warn_multichar; /* Nonzero means we are reading code that came from a system header file. */ extern int system_header_p; -/* Nonzero enables objc features. */ +/* Warn about implicit declarations. 1 = warning, 2 = error. */ +extern int mesg_implicit_function_declaration; -extern int doing_objc_thang; +/* In c-decl.c */ +extern void finish_incomplete_decl PARAMS ((tree)); -#endif /* not _C_TREE_H */ +#endif /* ! GCC_C_TREE_H */