Mercurial > hg > CbC > CbC_gcc
annotate gcc/c-tree.h @ 74:f26ecf70364b
modify c-decl.c, c-parser.c, c-tree.h and tree.h
| author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Mon, 22 Aug 2011 03:31:39 +0900 |
| parents | b81903832de2 |
| children | 99e7b6776dd1 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions for C parsing and type checking. |
| 2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998, | |
|
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3 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 |
| 0 | 4 Free Software Foundation, Inc. |
| 5 | |
| 6 This file is part of GCC. | |
| 7 | |
| 8 GCC is free software; you can redistribute it and/or modify it under | |
| 9 the terms of the GNU General Public License as published by the Free | |
| 10 Software Foundation; either version 3, or (at your option) any later | |
| 11 version. | |
| 12 | |
| 13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 14 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 19 along with GCC; see the file COPYING3. If not see | |
| 20 <http://www.gnu.org/licenses/>. */ | |
| 21 | |
| 22 #ifndef GCC_C_TREE_H | |
| 23 #define GCC_C_TREE_H | |
| 24 | |
|
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25 #include "c-family/c-common.h" |
| 0 | 26 #include "diagnostic.h" |
| 27 | |
| 28 /* struct lang_identifier is private to c-decl.c, but langhooks.c needs to | |
| 29 know how big it is. This is sanity-checked in c-decl.c. */ | |
| 30 #define C_SIZEOF_STRUCT_LANG_IDENTIFIER \ | |
| 31 (sizeof (struct c_common_identifier) + 3 * sizeof (void *)) | |
| 32 | |
| 33 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is read-only. */ | |
| 34 #define C_TYPE_FIELDS_READONLY(TYPE) TREE_LANG_FLAG_1 (TYPE) | |
| 35 | |
| 36 /* In a RECORD_TYPE or UNION_TYPE, nonzero if any component is volatile. */ | |
| 37 #define C_TYPE_FIELDS_VOLATILE(TYPE) TREE_LANG_FLAG_2 (TYPE) | |
| 38 | |
| 39 /* In a RECORD_TYPE or UNION_TYPE or ENUMERAL_TYPE | |
| 40 nonzero if the definition of the type has already started. */ | |
| 41 #define C_TYPE_BEING_DEFINED(TYPE) TYPE_LANG_FLAG_0 (TYPE) | |
| 42 | |
| 43 /* In an incomplete RECORD_TYPE or UNION_TYPE, a list of variable | |
| 44 declarations whose type would be completed by completing that type. */ | |
| 45 #define C_TYPE_INCOMPLETE_VARS(TYPE) TYPE_VFIELD (TYPE) | |
| 46 | |
| 47 /* In an IDENTIFIER_NODE, nonzero if this identifier is actually a | |
| 48 keyword. C_RID_CODE (node) is then the RID_* value of the keyword, | |
| 49 and C_RID_YYCODE is the token number wanted by Yacc. */ | |
| 50 #define C_IS_RESERVED_WORD(ID) TREE_LANG_FLAG_0 (ID) | |
| 51 | |
| 52 /* Record whether a type or decl was written with nonconstant size. | |
| 53 Note that TYPE_SIZE may have simplified to a constant. */ | |
| 54 #define C_TYPE_VARIABLE_SIZE(TYPE) TYPE_LANG_FLAG_1 (TYPE) | |
| 55 #define C_DECL_VARIABLE_SIZE(TYPE) DECL_LANG_FLAG_0 (TYPE) | |
| 56 | |
|
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57 /* Record whether a type is defined inside a struct or union type. |
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58 This is used for -Wc++-compat. */ |
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59 #define C_TYPE_DEFINED_IN_STRUCT(TYPE) TYPE_LANG_FLAG_2 (TYPE) |
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60 |
| 0 | 61 /* Record whether a typedef for type `int' was actually `signed int'. */ |
| 62 #define C_TYPEDEF_EXPLICITLY_SIGNED(EXP) DECL_LANG_FLAG_1 (EXP) | |
| 63 | |
| 64 /* For a FUNCTION_DECL, nonzero if it was defined without an explicit | |
| 65 return type. */ | |
| 66 #define C_FUNCTION_IMPLICIT_INT(EXP) DECL_LANG_FLAG_1 (EXP) | |
| 67 | |
| 68 /* For a FUNCTION_DECL, nonzero if it was an implicit declaration. */ | |
| 69 #define C_DECL_IMPLICIT(EXP) DECL_LANG_FLAG_2 (EXP) | |
| 70 | |
| 71 /* For FUNCTION_DECLs, evaluates true if the decl is built-in but has | |
| 72 been declared. */ | |
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73 #define C_DECL_DECLARED_BUILTIN(EXP) \ |
| 0 | 74 DECL_LANG_FLAG_3 (FUNCTION_DECL_CHECK (EXP)) |
| 75 | |
| 76 /* For FUNCTION_DECLs, evaluates true if the decl is built-in, has a | |
| 77 built-in prototype and does not have a non-built-in prototype. */ | |
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78 #define C_DECL_BUILTIN_PROTOTYPE(EXP) \ |
| 0 | 79 DECL_LANG_FLAG_6 (FUNCTION_DECL_CHECK (EXP)) |
| 80 | |
| 81 /* Record whether a decl was declared register. This is strictly a | |
| 82 front-end flag, whereas DECL_REGISTER is used for code generation; | |
| 83 they may differ for structures with volatile fields. */ | |
| 84 #define C_DECL_REGISTER(EXP) DECL_LANG_FLAG_4 (EXP) | |
| 85 | |
| 86 /* Record whether a decl was used in an expression anywhere except an | |
| 87 unevaluated operand of sizeof / typeof / alignof. This is only | |
| 88 used for functions declared static but not defined, though outside | |
| 89 sizeof and typeof it is set for other function decls as well. */ | |
| 90 #define C_DECL_USED(EXP) DECL_LANG_FLAG_5 (FUNCTION_DECL_CHECK (EXP)) | |
| 91 | |
| 92 /* Record whether a variable has been declared threadprivate by | |
| 93 #pragma omp threadprivate. */ | |
| 94 #define C_DECL_THREADPRIVATE_P(DECL) DECL_LANG_FLAG_3 (VAR_DECL_CHECK (DECL)) | |
| 95 | |
| 96 /* Nonzero for a decl which either doesn't exist or isn't a prototype. | |
| 97 N.B. Could be simplified if all built-in decls had complete prototypes | |
| 98 (but this is presently difficult because some of them need FILE*). */ | |
| 99 #define C_DECL_ISNT_PROTOTYPE(EXP) \ | |
| 100 (EXP == 0 \ | |
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101 || (!prototype_p (TREE_TYPE (EXP)) \ |
| 0 | 102 && !DECL_BUILT_IN (EXP))) |
| 103 | |
| 104 /* For FUNCTION_TYPE, a hidden list of types of arguments. The same as | |
| 105 TYPE_ARG_TYPES for functions with prototypes, but created for functions | |
| 106 without prototypes. */ | |
| 107 #define TYPE_ACTUAL_ARG_TYPES(NODE) TYPE_LANG_SLOT_1 (NODE) | |
| 108 | |
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109 /* For a CONSTRUCTOR, whether some initializer contains a |
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110 subexpression meaning it is not a constant expression. */ |
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111 #define CONSTRUCTOR_NON_CONST(EXPR) TREE_LANG_FLAG_1 (CONSTRUCTOR_CHECK (EXPR)) |
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112 |
| 0 | 113 /* Record parser information about an expression that is irrelevant |
| 114 for code generation alongside a tree representing its value. */ | |
| 115 struct c_expr | |
| 116 { | |
| 117 /* The value of the expression. */ | |
| 118 tree value; | |
| 119 /* Record the original unary/binary operator of an expression, which may | |
| 120 have been changed by fold, STRING_CST for unparenthesized string | |
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121 constants, C_MAYBE_CONST_EXPR for __builtin_constant_p calls |
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122 (even if parenthesized), for subexpressions, and for non-constant |
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123 initializers, or ERROR_MARK for other expressions (including |
| 0 | 124 parenthesized expressions). */ |
| 125 enum tree_code original_code; | |
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126 /* If not NULL, the original type of an expression. This will |
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127 differ from the type of the value field for an enum constant. |
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128 The type of an enum constant is a plain integer type, but this |
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129 field will be the enum type. */ |
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130 tree original_type; |
| 0 | 131 }; |
| 132 | |
| 133 /* A kind of type specifier. Note that this information is currently | |
| 134 only used to distinguish tag definitions, tag references and typeof | |
| 135 uses. */ | |
| 136 enum c_typespec_kind { | |
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137 /* No typespec. This appears only in struct c_declspec. */ |
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138 ctsk_none, |
| 0 | 139 /* A reserved keyword type specifier. */ |
| 140 ctsk_resword, | |
| 141 /* A reference to a tag, previously declared, such as "struct foo". | |
| 142 This includes where the previous declaration was as a different | |
| 143 kind of tag, in which case this is only valid if shadowing that | |
| 144 tag in an inner scope. */ | |
| 145 ctsk_tagref, | |
| 146 /* A reference to a tag, not previously declared in a visible | |
| 147 scope. */ | |
| 148 ctsk_tagfirstref, | |
| 149 /* A definition of a tag such as "struct foo { int a; }". */ | |
| 150 ctsk_tagdef, | |
| 151 /* A typedef name. */ | |
| 152 ctsk_typedef, | |
| 153 /* An ObjC-specific kind of type specifier. */ | |
| 154 ctsk_objc, | |
| 155 /* A typeof specifier. */ | |
| 156 ctsk_typeof | |
| 157 }; | |
| 158 | |
| 159 /* A type specifier: this structure is created in the parser and | |
| 160 passed to declspecs_add_type only. */ | |
| 161 struct c_typespec { | |
| 162 /* What kind of type specifier this is. */ | |
| 163 enum c_typespec_kind kind; | |
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164 /* Whether the expression has operands suitable for use in constant |
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165 expressions. */ |
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166 bool expr_const_operands; |
| 0 | 167 /* The specifier itself. */ |
| 168 tree spec; | |
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169 /* An expression to be evaluated before the type specifier, in the |
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170 case of typeof specifiers, or NULL otherwise or if no such |
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171 expression is required for a particular typeof specifier. In |
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172 particular, when typeof is applied to an expression of variably |
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173 modified type, that expression must be evaluated in order to |
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174 determine array sizes that form part of the type, but the |
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175 expression itself (as opposed to the array sizes) forms no part |
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176 of the type and so needs to be recorded separately. */ |
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177 tree expr; |
| 0 | 178 }; |
| 179 | |
| 180 /* A storage class specifier. */ | |
| 181 enum c_storage_class { | |
| 182 csc_none, | |
| 183 csc_auto, | |
| 184 csc_extern, | |
| 185 csc_register, | |
| 186 csc_static, | |
| 187 csc_typedef | |
| 188 }; | |
| 189 | |
| 190 /* A type specifier keyword "void", "_Bool", "char", "int", "float", | |
| 191 "double", "_Decimal32", "_Decimal64", "_Decimal128", "_Fract", "_Accum", | |
| 192 or none of these. */ | |
| 193 enum c_typespec_keyword { | |
| 194 cts_none, | |
| 195 cts_void, | |
| 196 cts_bool, | |
| 197 cts_char, | |
| 198 cts_int, | |
| 199 cts_float, | |
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200 cts_int128, |
| 0 | 201 cts_double, |
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202 #ifndef noCbC |
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203 cts_CbC_code, |
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204 #endif |
| 0 | 205 cts_dfloat32, |
| 206 cts_dfloat64, | |
| 207 cts_dfloat128, | |
| 208 cts_fract, | |
| 209 cts_accum | |
| 210 }; | |
| 211 | |
| 212 /* A sequence of declaration specifiers in C. */ | |
| 213 struct c_declspecs { | |
| 214 /* The type specified, if a single type specifier such as a struct, | |
| 215 union or enum specifier, typedef name or typeof specifies the | |
| 216 whole type, or NULL_TREE if none or a keyword such as "void" or | |
| 217 "char" is used. Does not include qualifiers. */ | |
| 218 tree type; | |
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219 /* Any expression to be evaluated before the type, from a typeof |
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220 specifier. */ |
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221 tree expr; |
| 0 | 222 /* The attributes from a typedef decl. */ |
| 223 tree decl_attr; | |
| 224 /* When parsing, the attributes. Outside the parser, this will be | |
| 225 NULL; attributes (possibly from multiple lists) will be passed | |
| 226 separately. */ | |
| 227 tree attrs; | |
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228 /* The storage class specifier, or csc_none if none. */ |
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229 enum c_storage_class storage_class; |
| 0 | 230 /* Any type specifier keyword used such as "int", not reflecting |
| 231 modifiers such as "short", or cts_none if none. */ | |
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232 ENUM_BITFIELD (c_typespec_keyword) typespec_word : 8; |
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233 /* The kind of type specifier if one has been seen, ctsk_none |
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234 otherwise. */ |
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235 ENUM_BITFIELD (c_typespec_kind) typespec_kind : 3; |
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236 /* Whether any expressions in typeof specifiers may appear in |
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237 constant expressions. */ |
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238 BOOL_BITFIELD expr_const_operands : 1; |
| 0 | 239 /* Whether any declaration specifiers have been seen at all. */ |
| 240 BOOL_BITFIELD declspecs_seen_p : 1; | |
| 241 /* Whether something other than a storage class specifier or | |
| 242 attribute has been seen. This is used to warn for the | |
| 243 obsolescent usage of storage class specifiers other than at the | |
| 244 start of the list. (Doing this properly would require function | |
| 245 specifiers to be handled separately from storage class | |
| 246 specifiers.) */ | |
| 247 BOOL_BITFIELD non_sc_seen_p : 1; | |
| 248 /* Whether the type is specified by a typedef or typeof name. */ | |
| 249 BOOL_BITFIELD typedef_p : 1; | |
| 250 /* Whether the type is explicitly "signed" or specified by a typedef | |
| 251 whose type is explicitly "signed". */ | |
| 252 BOOL_BITFIELD explicit_signed_p : 1; | |
| 253 /* Whether the specifiers include a deprecated typedef. */ | |
| 254 BOOL_BITFIELD deprecated_p : 1; | |
| 255 /* Whether the type defaulted to "int" because there were no type | |
| 256 specifiers. */ | |
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257 BOOL_BITFIELD default_int_p : 1; |
| 0 | 258 /* Whether "long" was specified. */ |
| 259 BOOL_BITFIELD long_p : 1; | |
| 260 /* Whether "long" was specified more than once. */ | |
| 261 BOOL_BITFIELD long_long_p : 1; | |
| 262 /* Whether "short" was specified. */ | |
| 263 BOOL_BITFIELD short_p : 1; | |
| 264 /* Whether "signed" was specified. */ | |
| 265 BOOL_BITFIELD signed_p : 1; | |
| 266 /* Whether "unsigned" was specified. */ | |
| 267 BOOL_BITFIELD unsigned_p : 1; | |
| 268 /* Whether "complex" was specified. */ | |
| 269 BOOL_BITFIELD complex_p : 1; | |
| 270 /* Whether "inline" was specified. */ | |
| 271 BOOL_BITFIELD inline_p : 1; | |
| 272 /* Whether "__thread" was specified. */ | |
| 273 BOOL_BITFIELD thread_p : 1; | |
| 274 /* Whether "const" was specified. */ | |
| 275 BOOL_BITFIELD const_p : 1; | |
| 276 /* Whether "volatile" was specified. */ | |
| 277 BOOL_BITFIELD volatile_p : 1; | |
| 278 /* Whether "restrict" was specified. */ | |
| 279 BOOL_BITFIELD restrict_p : 1; | |
| 280 /* Whether "_Sat" was specified. */ | |
| 281 BOOL_BITFIELD saturating_p : 1; | |
|
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282 /* The address space that the declaration belongs to. */ |
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283 addr_space_t address_space; |
| 0 | 284 }; |
| 285 | |
| 286 /* The various kinds of declarators in C. */ | |
| 287 enum c_declarator_kind { | |
| 288 /* An identifier. */ | |
| 289 cdk_id, | |
| 290 /* A function. */ | |
| 291 cdk_function, | |
| 292 /* An array. */ | |
| 293 cdk_array, | |
| 294 /* A pointer. */ | |
| 295 cdk_pointer, | |
| 296 /* Parenthesized declarator with nested attributes. */ | |
| 297 cdk_attrs | |
| 298 }; | |
| 299 | |
|
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300 typedef struct c_arg_tag_d { |
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301 /* The argument name. */ |
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302 tree id; |
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303 /* The type of the argument. */ |
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304 tree type; |
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305 } c_arg_tag; |
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306 |
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307 DEF_VEC_O(c_arg_tag); |
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308 DEF_VEC_ALLOC_O(c_arg_tag,gc); |
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309 |
| 0 | 310 /* Information about the parameters in a function declarator. */ |
| 311 struct c_arg_info { | |
| 312 /* A list of parameter decls. */ | |
| 313 tree parms; | |
| 314 /* A list of structure, union and enum tags defined. */ | |
|
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315 VEC(c_arg_tag,gc) *tags; |
| 0 | 316 /* A list of argument types to go in the FUNCTION_TYPE. */ |
| 317 tree types; | |
| 318 /* A list of non-parameter decls (notably enumeration constants) | |
| 319 defined with the parameters. */ | |
| 320 tree others; | |
|
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321 /* A VEC of VLA sizes from the parameters. In a function |
| 0 | 322 definition, these are used to ensure that side-effects in sizes |
| 323 of arrays converted to pointers (such as a parameter int i[n++]) | |
| 324 take place; otherwise, they are ignored. */ | |
|
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325 VEC(tree,gc) *pending_sizes; |
| 0 | 326 /* True when these arguments had [*]. */ |
| 327 BOOL_BITFIELD had_vla_unspec : 1; | |
| 328 }; | |
| 329 | |
| 330 /* A declarator. */ | |
| 331 struct c_declarator { | |
| 332 /* The kind of declarator. */ | |
| 333 enum c_declarator_kind kind; | |
|
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334 location_t id_loc; /* Currently only set for cdk_id, cdk_array. */ |
| 0 | 335 /* Except for cdk_id, the contained declarator. For cdk_id, NULL. */ |
| 336 struct c_declarator *declarator; | |
| 337 union { | |
| 338 /* For identifiers, an IDENTIFIER_NODE or NULL_TREE if an abstract | |
| 339 declarator. */ | |
| 340 tree id; | |
| 341 /* For functions. */ | |
| 342 struct c_arg_info *arg_info; | |
| 343 /* For arrays. */ | |
| 344 struct { | |
| 345 /* The array dimension, or NULL for [] and [*]. */ | |
| 346 tree dimen; | |
| 347 /* The qualifiers inside []. */ | |
| 348 int quals; | |
| 349 /* The attributes (currently ignored) inside []. */ | |
| 350 tree attrs; | |
| 351 /* Whether [static] was used. */ | |
| 352 BOOL_BITFIELD static_p : 1; | |
| 353 /* Whether [*] was used. */ | |
| 354 BOOL_BITFIELD vla_unspec_p : 1; | |
| 355 } array; | |
| 356 /* For pointers, the qualifiers on the pointer type. */ | |
| 357 int pointer_quals; | |
| 358 /* For attributes. */ | |
| 359 tree attrs; | |
| 360 } u; | |
| 361 }; | |
| 362 | |
| 363 /* A type name. */ | |
| 364 struct c_type_name { | |
| 365 /* The declaration specifiers. */ | |
| 366 struct c_declspecs *specs; | |
| 367 /* The declarator. */ | |
| 368 struct c_declarator *declarator; | |
| 369 }; | |
| 370 | |
| 371 /* A parameter. */ | |
| 372 struct c_parm { | |
| 373 /* The declaration specifiers, minus any prefix attributes. */ | |
| 374 struct c_declspecs *specs; | |
| 375 /* The attributes. */ | |
| 376 tree attrs; | |
| 377 /* The declarator. */ | |
| 378 struct c_declarator *declarator; | |
| 379 }; | |
| 380 | |
| 381 /* Used when parsing an enum. Initialized by start_enum. */ | |
| 382 struct c_enum_contents | |
| 383 { | |
| 384 /* While defining an enum type, this is 1 plus the last enumerator | |
| 385 constant value. */ | |
| 386 tree enum_next_value; | |
| 387 | |
| 388 /* Nonzero means that there was overflow computing enum_next_value. */ | |
| 389 int enum_overflow; | |
| 390 }; | |
| 391 | |
|
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392 /* A type of reference to a static identifier in an inline |
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393 function. */ |
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394 enum c_inline_static_type { |
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395 /* Identifier with internal linkage used in function that may be an |
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396 inline definition (i.e., file-scope static). */ |
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397 csi_internal, |
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398 /* Modifiable object with static storage duration defined in |
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399 function that may be an inline definition (i.e., local |
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400 static). */ |
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401 csi_modifiable |
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402 }; |
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403 |
| 0 | 404 |
| 405 /* in c-parser.c */ | |
| 406 extern void c_parse_init (void); | |
| 407 | |
| 408 /* in c-aux-info.c */ | |
| 409 extern void gen_aux_info_record (tree, int, int, int); | |
| 410 | |
| 411 /* in c-decl.c */ | |
|
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412 struct c_spot_bindings; |
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413 struct c_struct_parse_info; |
| 0 | 414 extern struct obstack parser_obstack; |
| 415 extern tree c_break_label; | |
| 416 extern tree c_cont_label; | |
| 417 | |
| 418 extern int global_bindings_p (void); | |
| 419 extern void push_scope (void); | |
| 420 extern tree pop_scope (void); | |
|
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421 extern void c_bindings_start_stmt_expr (struct c_spot_bindings *); |
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422 extern void c_bindings_end_stmt_expr (struct c_spot_bindings *); |
| 0 | 423 |
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424 extern void record_inline_static (location_t, tree, tree, |
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425 enum c_inline_static_type); |
| 0 | 426 extern void c_init_decl_processing (void); |
| 427 extern void c_print_identifier (FILE *, tree, int); | |
| 428 extern int quals_from_declspecs (const struct c_declspecs *); | |
|
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429 extern struct c_declarator *build_array_declarator (location_t, tree, |
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430 struct c_declspecs *, |
| 0 | 431 bool, bool); |
|
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432 extern tree build_enumerator (location_t, location_t, struct c_enum_contents *, |
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433 tree, tree); |
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434 extern tree check_for_loop_decls (location_t, bool); |
| 0 | 435 extern void mark_forward_parm_decls (void); |
| 436 extern void declare_parm_level (void); | |
|
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437 extern void undeclared_variable (location_t, tree); |
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438 extern tree lookup_label_for_goto (location_t, tree); |
| 0 | 439 extern tree declare_label (tree); |
| 440 extern tree define_label (location_t, tree); | |
|
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441 extern struct c_spot_bindings *c_get_switch_bindings (void); |
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442 extern void c_release_switch_bindings (struct c_spot_bindings *); |
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443 extern bool c_check_switch_jump_warnings (struct c_spot_bindings *, |
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444 location_t, location_t); |
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445 extern void finish_decl (tree, location_t, tree, tree, tree); |
| 0 | 446 extern tree finish_enum (tree, tree, tree); |
| 447 extern void finish_function (void); | |
|
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448 extern tree finish_struct (location_t, tree, tree, tree, |
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449 struct c_struct_parse_info *); |
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450 extern struct c_arg_info *build_arg_info (void); |
| 0 | 451 extern struct c_arg_info *get_parm_info (bool); |
| 452 extern tree grokfield (location_t, struct c_declarator *, | |
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453 struct c_declspecs *, tree, tree *); |
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454 extern tree groktypename (struct c_type_name *, tree *, bool *); |
| 0 | 455 extern tree grokparm (const struct c_parm *); |
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456 |
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457 #ifndef noCbC |
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458 extern tree implicitly_declare (location_t, tree, int); |
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459 #else |
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460 extern tree implicitly_declare (location_t, tree); |
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461 #endif |
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462 |
| 0 | 463 extern void keep_next_level (void); |
| 464 extern void pending_xref_error (void); | |
| 465 extern void c_push_function_context (void); | |
| 466 extern void c_pop_function_context (void); | |
| 467 extern void push_parm_decl (const struct c_parm *); | |
| 468 extern struct c_declarator *set_array_declarator_inner (struct c_declarator *, | |
|
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469 struct c_declarator *); |
| 0 | 470 extern tree c_builtin_function (tree); |
| 471 extern tree c_builtin_function_ext_scope (tree); | |
| 472 extern void shadow_tag (const struct c_declspecs *); | |
| 473 extern void shadow_tag_warned (const struct c_declspecs *, int); | |
|
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474 extern tree start_enum (location_t, struct c_enum_contents *, tree); |
| 0 | 475 extern int start_function (struct c_declspecs *, struct c_declarator *, tree); |
| 476 extern tree start_decl (struct c_declarator *, struct c_declspecs *, bool, | |
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477 tree); |
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478 extern tree start_struct (location_t, enum tree_code, tree, |
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479 struct c_struct_parse_info **); |
| 0 | 480 extern void store_parm_decls (void); |
| 481 extern void store_parm_decls_from (struct c_arg_info *); | |
| 482 extern tree xref_tag (enum tree_code, tree); | |
|
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483 extern struct c_typespec parser_xref_tag (location_t, enum tree_code, tree); |
| 0 | 484 extern int c_expand_decl (tree); |
| 485 extern struct c_parm *build_c_parm (struct c_declspecs *, tree, | |
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486 struct c_declarator *); |
| 0 | 487 extern struct c_declarator *build_attrs_declarator (tree, |
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488 struct c_declarator *); |
| 0 | 489 extern struct c_declarator *build_function_declarator (struct c_arg_info *, |
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490 struct c_declarator *); |
| 0 | 491 extern struct c_declarator *build_id_declarator (tree); |
| 492 extern struct c_declarator *make_pointer_declarator (struct c_declspecs *, | |
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493 struct c_declarator *); |
| 0 | 494 extern struct c_declspecs *build_null_declspecs (void); |
| 495 extern struct c_declspecs *declspecs_add_qual (struct c_declspecs *, tree); | |
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496 extern struct c_declspecs *declspecs_add_type (location_t, |
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497 struct c_declspecs *, |
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498 struct c_typespec); |
| 0 | 499 extern struct c_declspecs *declspecs_add_scspec (struct c_declspecs *, tree); |
| 500 extern struct c_declspecs *declspecs_add_attrs (struct c_declspecs *, tree); | |
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501 extern struct c_declspecs *declspecs_add_addrspace (struct c_declspecs *, |
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502 addr_space_t); |
| 0 | 503 extern struct c_declspecs *finish_declspecs (struct c_declspecs *); |
| 504 | |
| 505 /* in c-objc-common.c */ | |
| 506 extern bool c_objc_common_init (void); | |
| 507 extern bool c_missing_noreturn_ok_p (tree); | |
| 508 extern bool c_warn_unused_global_decl (const_tree); | |
| 509 extern void c_initialize_diagnostics (diagnostic_context *); | |
| 510 extern bool c_vla_unspec_p (tree x, tree fn); | |
| 511 | |
| 512 /* in c-typeck.c */ | |
| 513 extern int in_alignof; | |
| 514 extern int in_sizeof; | |
| 515 extern int in_typeof; | |
| 516 | |
| 517 extern struct c_switch *c_switch_stack; | |
| 518 | |
| 519 extern tree c_objc_common_truthvalue_conversion (location_t, tree); | |
| 520 extern tree require_complete_type (tree); | |
| 521 extern int same_translation_unit_p (const_tree, const_tree); | |
| 522 extern int comptypes (tree, tree); | |
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523 extern int comptypes_check_different_types (tree, tree, bool *); |
| 0 | 524 extern bool c_vla_type_p (const_tree); |
| 525 extern bool c_mark_addressable (tree); | |
| 526 extern void c_incomplete_type_error (const_tree, const_tree); | |
| 527 extern tree c_type_promotes_to (tree); | |
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528 extern struct c_expr default_function_array_conversion (location_t, |
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529 struct c_expr); |
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530 extern struct c_expr default_function_array_read_conversion (location_t, |
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531 struct c_expr); |
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532 extern void mark_exp_read (tree); |
| 0 | 533 extern tree composite_type (tree, tree); |
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534 extern tree build_component_ref (location_t, tree, tree); |
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535 extern tree build_array_ref (location_t, tree, tree); |
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536 extern tree build_external_ref (location_t, tree, int, tree *); |
| 0 | 537 extern void pop_maybe_used (bool); |
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538 extern struct c_expr c_expr_sizeof_expr (location_t, struct c_expr); |
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539 extern struct c_expr c_expr_sizeof_type (location_t, struct c_type_name *); |
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540 extern struct c_expr parser_build_unary_op (location_t, enum tree_code, |
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541 struct c_expr); |
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542 extern struct c_expr parser_build_binary_op (location_t, |
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543 enum tree_code, struct c_expr, |
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544 struct c_expr); |
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545 extern tree build_conditional_expr (location_t, tree, bool, tree, tree, |
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546 tree, tree); |
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547 extern tree build_compound_expr (location_t, tree, tree); |
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548 extern tree c_cast_expr (location_t, struct c_type_name *, tree); |
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549 extern tree build_c_cast (location_t, tree, tree); |
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550 extern void store_init_value (location_t, tree, tree, tree); |
| 0 | 551 extern void error_init (const char *); |
| 552 extern void pedwarn_init (location_t, int opt, const char *); | |
| 553 extern void maybe_warn_string_init (tree, struct c_expr); | |
| 554 extern void start_init (tree, tree, int); | |
| 555 extern void finish_init (void); | |
| 556 extern void really_start_incremental_init (tree); | |
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557 extern void push_init_level (int, struct obstack *); |
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558 extern struct c_expr pop_init_level (int, struct obstack *); |
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559 extern void set_init_index (tree, tree, struct obstack *); |
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560 extern void set_init_label (tree, struct obstack *); |
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561 extern void process_init_element (struct c_expr, bool, struct obstack *); |
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562 extern tree build_compound_literal (location_t, tree, tree, bool); |
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563 extern void check_compound_literal_type (location_t, struct c_type_name *); |
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564 extern tree c_start_case (location_t, location_t, tree); |
| 0 | 565 extern void c_finish_case (tree); |
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566 extern tree build_asm_expr (location_t, tree, tree, tree, tree, tree, bool); |
| 0 | 567 extern tree build_asm_stmt (tree, tree); |
| 568 extern int c_types_compatible_p (tree, tree); | |
| 569 extern tree c_begin_compound_stmt (bool); | |
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570 extern tree c_end_compound_stmt (location_t, tree, bool); |
| 0 | 571 extern void c_finish_if_stmt (location_t, tree, tree, tree, bool); |
| 572 extern void c_finish_loop (location_t, tree, tree, tree, tree, tree, bool); | |
| 573 extern tree c_begin_stmt_expr (void); | |
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574 extern tree c_finish_stmt_expr (location_t, tree); |
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575 extern tree c_process_expr_stmt (location_t, tree); |
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576 extern tree c_finish_expr_stmt (location_t, tree); |
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577 extern tree c_finish_return (location_t, tree, tree); |
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578 extern tree c_finish_bc_stmt (location_t, tree *, bool); |
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579 extern tree c_finish_goto_label (location_t, tree); |
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580 extern tree c_finish_goto_ptr (location_t, tree); |
| 0 | 581 extern tree c_expr_to_decl (tree, bool *, bool *); |
| 582 extern tree c_begin_omp_parallel (void); | |
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583 extern tree c_finish_omp_parallel (location_t, tree, tree); |
| 0 | 584 extern tree c_begin_omp_task (void); |
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585 extern tree c_finish_omp_task (location_t, tree, tree); |
| 0 | 586 extern tree c_finish_omp_clauses (tree); |
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587 extern tree c_build_va_arg (location_t, tree, tree); |
| 0 | 588 |
| 589 /* Set to 0 at beginning of a function definition, set to 1 if | |
| 590 a return statement that specifies a return value is seen. */ | |
| 591 | |
| 592 extern int current_function_returns_value; | |
| 593 | |
| 594 /* Set to 0 at beginning of a function definition, set to 1 if | |
| 595 a return statement with no argument is seen. */ | |
| 596 | |
| 597 extern int current_function_returns_null; | |
| 598 | |
| 599 /* Set to 0 at beginning of a function definition, set to 1 if | |
| 600 a call to a noreturn function is seen. */ | |
| 601 | |
| 602 extern int current_function_returns_abnormally; | |
| 603 | |
| 604 /* Nonzero means we are reading code that came from a system header file. */ | |
| 605 | |
| 606 extern int system_header_p; | |
| 607 | |
| 608 /* True means global_bindings_p should return false even if the scope stack | |
| 609 says we are in file scope. */ | |
| 610 | |
| 611 extern bool c_override_global_bindings_to_false; | |
| 612 | |
| 613 /* In c-decl.c */ | |
| 614 extern void c_finish_incomplete_decl (tree); | |
| 615 extern void c_write_global_declarations (void); | |
| 616 | |
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617 /* In c-errors.c */ |
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618 extern void pedwarn_c90 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); |
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619 extern void pedwarn_c99 (location_t, int opt, const char *, ...) ATTRIBUTE_GCC_DIAG(3,4); |
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620 |
| 0 | 621 #endif /* ! GCC_C_TREE_H */ |