1 //===--- InitPreprocessor.cpp - PP initialization code. ---------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements the clang::InitializePreprocessor function. 11 // 12 //===----------------------------------------------------------------------===// 13 14 #include "clang/Frontend/InitPreprocessor.h" 15 #include "clang/Basic/TargetInfo.h" 16 #include "clang/Lex/Preprocessor.h" 17 #include "llvm/ADT/StringExtras.h" 18 #include "llvm/ADT/STLExtras.h" 19 #include "llvm/System/Path.h" 20 21 namespace clang { 22 23 // Append a #define line to Buf for Macro. Macro should be of the form XXX, 24 // in which case we emit "#define XXX 1" or "XXX=Y z W" in which case we emit 25 // "#define XXX Y z W". To get a #define with no value, use "XXX=". 26 static void DefineBuiltinMacro(std::vector<char> &Buf, const char *Macro) { 27 const char *Command = "#define "; 28 Buf.insert(Buf.end(), Command, Command+strlen(Command)); 29 if (const char *Equal = strchr(Macro, '=')) { 30 // Turn the = into ' '. 31 Buf.insert(Buf.end(), Macro, Equal); 32 Buf.push_back(' '); 33 34 // Per GCC -D semantics, the macro ends at \n if it exists. 35 const char *End = strpbrk(Equal, "\n\r"); 36 if (End) { 37 fprintf(stderr, "warning: macro '%s' contains embedded newline, text " 38 "after the newline is ignored.\n", 39 std::string(Macro, Equal).c_str()); 40 } else { 41 End = Equal+strlen(Equal); 42 } 43 44 Buf.insert(Buf.end(), Equal+1, End); 45 } else { 46 // Push "macroname 1". 47 Buf.insert(Buf.end(), Macro, Macro+strlen(Macro)); 48 Buf.push_back(' '); 49 Buf.push_back('1'); 50 } 51 Buf.push_back('\n'); 52 } 53 54 // Append a #undef line to Buf for Macro. Macro should be of the form XXX 55 // and we emit "#undef XXX". 56 static void UndefineBuiltinMacro(std::vector<char> &Buf, const char *Macro) { 57 // Push "macroname". 58 const char *Command = "#undef "; 59 Buf.insert(Buf.end(), Command, Command+strlen(Command)); 60 Buf.insert(Buf.end(), Macro, Macro+strlen(Macro)); 61 Buf.push_back('\n'); 62 } 63 64 /// Add the quoted name of an implicit include file. 65 static void AddQuotedIncludePath(std::vector<char> &Buf, 66 const std::string &File) { 67 // Implicit include paths should be resolved relative to the current 68 // working directory first, and then use the regular header search 69 // mechanism. The proper way to handle this is to have the 70 // predefines buffer located at the current working directory, but 71 // it has not file entry. For now, workaround this by using an 72 // absolute path if we find the file here, and otherwise letting 73 // header search handle it. 74 llvm::sys::Path Path(File); 75 Path.makeAbsolute(); 76 if (!Path.exists()) 77 Path = File; 78 79 // Escape double quotes etc. 80 Buf.push_back('"'); 81 std::string EscapedFile = Lexer::Stringify(Path.str()); 82 Buf.insert(Buf.end(), EscapedFile.begin(), EscapedFile.end()); 83 Buf.push_back('"'); 84 } 85 86 /// AddImplicitInclude - Add an implicit #include of the specified file to the 87 /// predefines buffer. 88 static void AddImplicitInclude(std::vector<char> &Buf, 89 const std::string &File) { 90 const char *Inc = "#include "; 91 Buf.insert(Buf.end(), Inc, Inc+strlen(Inc)); 92 AddQuotedIncludePath(Buf, File); 93 Buf.push_back('\n'); 94 } 95 96 static void AddImplicitIncludeMacros(std::vector<char> &Buf, 97 const std::string &File) { 98 const char *Inc = "#__include_macros "; 99 Buf.insert(Buf.end(), Inc, Inc+strlen(Inc)); 100 AddQuotedIncludePath(Buf, File); 101 Buf.push_back('\n'); 102 // Marker token to stop the __include_macros fetch loop. 103 const char *Marker = "##\n"; // ##? 104 Buf.insert(Buf.end(), Marker, Marker+strlen(Marker)); 105 } 106 107 /// AddImplicitIncludePTH - Add an implicit #include using the original file 108 /// used to generate a PTH cache. 109 static void AddImplicitIncludePTH(std::vector<char> &Buf, Preprocessor &PP, 110 const std::string& ImplicitIncludePTH) { 111 PTHManager *P = PP.getPTHManager(); 112 assert(P && "No PTHManager."); 113 const char *OriginalFile = P->getOriginalSourceFile(); 114 115 if (!OriginalFile) { 116 assert(!ImplicitIncludePTH.empty()); 117 fprintf(stderr, "error: PTH file '%s' does not designate an original " 118 "source header file for -include-pth\n", 119 ImplicitIncludePTH.c_str()); 120 exit (1); 121 } 122 123 AddImplicitInclude(Buf, OriginalFile); 124 } 125 126 /// PickFP - This is used to pick a value based on the FP semantics of the 127 /// specified FP model. 128 template <typename T> 129 static T PickFP(const llvm::fltSemantics *Sem, T IEEESingleVal, 130 T IEEEDoubleVal, T X87DoubleExtendedVal, T PPCDoubleDoubleVal, 131 T IEEEQuadVal) { 132 if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEsingle) 133 return IEEESingleVal; 134 if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEdouble) 135 return IEEEDoubleVal; 136 if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::x87DoubleExtended) 137 return X87DoubleExtendedVal; 138 if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::PPCDoubleDouble) 139 return PPCDoubleDoubleVal; 140 assert(Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEquad); 141 return IEEEQuadVal; 142 } 143 144 static void DefineFloatMacros(std::vector<char> &Buf, const char *Prefix, 145 const llvm::fltSemantics *Sem) { 146 const char *DenormMin, *Epsilon, *Max, *Min; 147 DenormMin = PickFP(Sem, "1.40129846e-45F", "4.9406564584124654e-324", 148 "3.64519953188247460253e-4951L", 149 "4.94065645841246544176568792868221e-324L", 150 "6.47517511943802511092443895822764655e-4966L"); 151 int Digits = PickFP(Sem, 6, 15, 18, 31, 33); 152 Epsilon = PickFP(Sem, "1.19209290e-7F", "2.2204460492503131e-16", 153 "1.08420217248550443401e-19L", 154 "4.94065645841246544176568792868221e-324L", 155 "1.92592994438723585305597794258492732e-34L"); 156 int HasInifinity = 1, HasQuietNaN = 1; 157 int MantissaDigits = PickFP(Sem, 24, 53, 64, 106, 113); 158 int Min10Exp = PickFP(Sem, -37, -307, -4931, -291, -4931); 159 int Max10Exp = PickFP(Sem, 38, 308, 4932, 308, 4932); 160 int MinExp = PickFP(Sem, -125, -1021, -16381, -968, -16381); 161 int MaxExp = PickFP(Sem, 128, 1024, 16384, 1024, 16384); 162 Min = PickFP(Sem, "1.17549435e-38F", "2.2250738585072014e-308", 163 "3.36210314311209350626e-4932L", 164 "2.00416836000897277799610805135016e-292L", 165 "3.36210314311209350626267781732175260e-4932L"); 166 Max = PickFP(Sem, "3.40282347e+38F", "1.7976931348623157e+308", 167 "1.18973149535723176502e+4932L", 168 "1.79769313486231580793728971405301e+308L", 169 "1.18973149535723176508575932662800702e+4932L"); 170 171 char MacroBuf[100]; 172 sprintf(MacroBuf, "__%s_DENORM_MIN__=%s", Prefix, DenormMin); 173 DefineBuiltinMacro(Buf, MacroBuf); 174 sprintf(MacroBuf, "__%s_DIG__=%d", Prefix, Digits); 175 DefineBuiltinMacro(Buf, MacroBuf); 176 sprintf(MacroBuf, "__%s_EPSILON__=%s", Prefix, Epsilon); 177 DefineBuiltinMacro(Buf, MacroBuf); 178 sprintf(MacroBuf, "__%s_HAS_INFINITY__=%d", Prefix, HasInifinity); 179 DefineBuiltinMacro(Buf, MacroBuf); 180 sprintf(MacroBuf, "__%s_HAS_QUIET_NAN__=%d", Prefix, HasQuietNaN); 181 DefineBuiltinMacro(Buf, MacroBuf); 182 sprintf(MacroBuf, "__%s_MANT_DIG__=%d", Prefix, MantissaDigits); 183 DefineBuiltinMacro(Buf, MacroBuf); 184 sprintf(MacroBuf, "__%s_MAX_10_EXP__=%d", Prefix, Max10Exp); 185 DefineBuiltinMacro(Buf, MacroBuf); 186 sprintf(MacroBuf, "__%s_MAX_EXP__=%d", Prefix, MaxExp); 187 DefineBuiltinMacro(Buf, MacroBuf); 188 sprintf(MacroBuf, "__%s_MAX__=%s", Prefix, Max); 189 DefineBuiltinMacro(Buf, MacroBuf); 190 sprintf(MacroBuf, "__%s_MIN_10_EXP__=(%d)", Prefix, Min10Exp); 191 DefineBuiltinMacro(Buf, MacroBuf); 192 sprintf(MacroBuf, "__%s_MIN_EXP__=(%d)", Prefix, MinExp); 193 DefineBuiltinMacro(Buf, MacroBuf); 194 sprintf(MacroBuf, "__%s_MIN__=%s", Prefix, Min); 195 DefineBuiltinMacro(Buf, MacroBuf); 196 sprintf(MacroBuf, "__%s_HAS_DENORM__=1", Prefix); 197 DefineBuiltinMacro(Buf, MacroBuf); 198 } 199 200 201 /// DefineTypeSize - Emit a macro to the predefines buffer that declares a macro 202 /// named MacroName with the max value for a type with width 'TypeWidth' a 203 /// signedness of 'isSigned' and with a value suffix of 'ValSuffix' (e.g. LL). 204 static void DefineTypeSize(const char *MacroName, unsigned TypeWidth, 205 const char *ValSuffix, bool isSigned, 206 std::vector<char> &Buf) { 207 char MacroBuf[60]; 208 long long MaxVal; 209 if (isSigned) 210 MaxVal = (1LL << (TypeWidth - 1)) - 1; 211 else 212 MaxVal = ~0LL >> (64-TypeWidth); 213 214 // FIXME: Switch to using raw_ostream and avoid utostr(). 215 sprintf(MacroBuf, "%s=%s%s", MacroName, llvm::utostr(MaxVal).c_str(), 216 ValSuffix); 217 DefineBuiltinMacro(Buf, MacroBuf); 218 } 219 220 static void DefineType(const char *MacroName, TargetInfo::IntType Ty, 221 std::vector<char> &Buf) { 222 char MacroBuf[60]; 223 sprintf(MacroBuf, "%s=%s", MacroName, TargetInfo::getTypeName(Ty)); 224 DefineBuiltinMacro(Buf, MacroBuf); 225 } 226 227 228 static void InitializePredefinedMacros(const TargetInfo &TI, 229 const LangOptions &LangOpts, 230 std::vector<char> &Buf) { 231 char MacroBuf[60]; 232 // Compiler version introspection macros. 233 DefineBuiltinMacro(Buf, "__llvm__=1"); // LLVM Backend 234 DefineBuiltinMacro(Buf, "__clang__=1"); // Clang Frontend 235 236 // Currently claim to be compatible with GCC 4.2.1-5621. 237 DefineBuiltinMacro(Buf, "__GNUC_MINOR__=2"); 238 DefineBuiltinMacro(Buf, "__GNUC_PATCHLEVEL__=1"); 239 DefineBuiltinMacro(Buf, "__GNUC__=4"); 240 DefineBuiltinMacro(Buf, "__GXX_ABI_VERSION=1002"); 241 DefineBuiltinMacro(Buf, "__VERSION__=\"4.2.1 Compatible Clang Compiler\""); 242 243 244 // Initialize language-specific preprocessor defines. 245 246 // These should all be defined in the preprocessor according to the 247 // current language configuration. 248 if (!LangOpts.Microsoft) 249 DefineBuiltinMacro(Buf, "__STDC__=1"); 250 if (LangOpts.AsmPreprocessor) 251 DefineBuiltinMacro(Buf, "__ASSEMBLER__=1"); 252 253 if (!LangOpts.CPlusPlus) { 254 if (LangOpts.C99) 255 DefineBuiltinMacro(Buf, "__STDC_VERSION__=199901L"); 256 else if (!LangOpts.GNUMode && LangOpts.Digraphs) 257 DefineBuiltinMacro(Buf, "__STDC_VERSION__=199409L"); 258 } 259 260 // Standard conforming mode? 261 if (!LangOpts.GNUMode) 262 DefineBuiltinMacro(Buf, "__STRICT_ANSI__=1"); 263 264 if (LangOpts.CPlusPlus0x) 265 DefineBuiltinMacro(Buf, "__GXX_EXPERIMENTAL_CXX0X__"); 266 267 if (LangOpts.Freestanding) 268 DefineBuiltinMacro(Buf, "__STDC_HOSTED__=0"); 269 else 270 DefineBuiltinMacro(Buf, "__STDC_HOSTED__=1"); 271 272 if (LangOpts.ObjC1) { 273 DefineBuiltinMacro(Buf, "__OBJC__=1"); 274 if (LangOpts.ObjCNonFragileABI) { 275 DefineBuiltinMacro(Buf, "__OBJC2__=1"); 276 DefineBuiltinMacro(Buf, "OBJC_ZEROCOST_EXCEPTIONS=1"); 277 DefineBuiltinMacro(Buf, "__EXCEPTIONS=1"); 278 } 279 280 if (LangOpts.getGCMode() != LangOptions::NonGC) 281 DefineBuiltinMacro(Buf, "__OBJC_GC__=1"); 282 283 if (LangOpts.NeXTRuntime) 284 DefineBuiltinMacro(Buf, "__NEXT_RUNTIME__=1"); 285 } 286 287 // darwin_constant_cfstrings controls this. This is also dependent 288 // on other things like the runtime I believe. This is set even for C code. 289 DefineBuiltinMacro(Buf, "__CONSTANT_CFSTRINGS__=1"); 290 291 if (LangOpts.ObjC2) 292 DefineBuiltinMacro(Buf, "OBJC_NEW_PROPERTIES"); 293 294 if (LangOpts.PascalStrings) 295 DefineBuiltinMacro(Buf, "__PASCAL_STRINGS__"); 296 297 if (LangOpts.Blocks) { 298 DefineBuiltinMacro(Buf, "__block=__attribute__((__blocks__(byref)))"); 299 DefineBuiltinMacro(Buf, "__BLOCKS__=1"); 300 } 301 302 if (LangOpts.CPlusPlus) { 303 DefineBuiltinMacro(Buf, "__DEPRECATED=1"); 304 DefineBuiltinMacro(Buf, "__EXCEPTIONS=1"); 305 DefineBuiltinMacro(Buf, "__GNUG__=4"); 306 DefineBuiltinMacro(Buf, "__GXX_WEAK__=1"); 307 if (LangOpts.GNUMode) 308 DefineBuiltinMacro(Buf, "__cplusplus=1"); 309 else 310 // C++ [cpp.predefined]p1: 311 // The name_ _cplusplusis defined to the value199711Lwhen compiling a 312 // C++ translation unit. 313 DefineBuiltinMacro(Buf, "__cplusplus=199711L"); 314 DefineBuiltinMacro(Buf, "__private_extern__=extern"); 315 // Ugly hack to work with GNU libstdc++. 316 DefineBuiltinMacro(Buf, "_GNU_SOURCE=1"); 317 } 318 319 // Filter out some microsoft extensions when trying to parse in ms-compat 320 // mode. 321 if (LangOpts.Microsoft) { 322 DefineBuiltinMacro(Buf, "__int8=__INT8_TYPE__"); 323 DefineBuiltinMacro(Buf, "__int16=__INT16_TYPE__"); 324 DefineBuiltinMacro(Buf, "__int32=__INT32_TYPE__"); 325 DefineBuiltinMacro(Buf, "__int64=__INT64_TYPE__"); 326 } 327 328 if (LangOpts.Optimize) 329 DefineBuiltinMacro(Buf, "__OPTIMIZE__=1"); 330 if (LangOpts.OptimizeSize) 331 DefineBuiltinMacro(Buf, "__OPTIMIZE_SIZE__=1"); 332 333 // Initialize target-specific preprocessor defines. 334 335 // Define type sizing macros based on the target properties. 336 assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far"); 337 DefineBuiltinMacro(Buf, "__CHAR_BIT__=8"); 338 339 unsigned IntMaxWidth; 340 const char *IntMaxSuffix; 341 if (TI.getIntMaxType() == TargetInfo::SignedLongLong) { 342 IntMaxWidth = TI.getLongLongWidth(); 343 IntMaxSuffix = "LL"; 344 } else if (TI.getIntMaxType() == TargetInfo::SignedLong) { 345 IntMaxWidth = TI.getLongWidth(); 346 IntMaxSuffix = "L"; 347 } else { 348 assert(TI.getIntMaxType() == TargetInfo::SignedInt); 349 IntMaxWidth = TI.getIntWidth(); 350 IntMaxSuffix = ""; 351 } 352 353 DefineTypeSize("__SCHAR_MAX__", TI.getCharWidth(), "", true, Buf); 354 DefineTypeSize("__SHRT_MAX__", TI.getShortWidth(), "", true, Buf); 355 DefineTypeSize("__INT_MAX__", TI.getIntWidth(), "", true, Buf); 356 DefineTypeSize("__LONG_MAX__", TI.getLongWidth(), "L", true, Buf); 357 DefineTypeSize("__LONG_LONG_MAX__", TI.getLongLongWidth(), "LL", true, Buf); 358 DefineTypeSize("__WCHAR_MAX__", TI.getWCharWidth(), "", true, Buf); 359 DefineTypeSize("__INTMAX_MAX__", IntMaxWidth, IntMaxSuffix, true, Buf); 360 361 DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Buf); 362 DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Buf); 363 DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Buf); 364 DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Buf); 365 DefineType("__SIZE_TYPE__", TI.getSizeType(), Buf); 366 DefineType("__WCHAR_TYPE__", TI.getWCharType(), Buf); 367 // FIXME: TargetInfo hookize __WINT_TYPE__. 368 DefineBuiltinMacro(Buf, "__WINT_TYPE__=int"); 369 370 DefineFloatMacros(Buf, "FLT", &TI.getFloatFormat()); 371 DefineFloatMacros(Buf, "DBL", &TI.getDoubleFormat()); 372 DefineFloatMacros(Buf, "LDBL", &TI.getLongDoubleFormat()); 373 374 // Define a __POINTER_WIDTH__ macro for stdint.h. 375 sprintf(MacroBuf, "__POINTER_WIDTH__=%d", (int)TI.getPointerWidth(0)); 376 DefineBuiltinMacro(Buf, MacroBuf); 377 378 if (!LangOpts.CharIsSigned) 379 DefineBuiltinMacro(Buf, "__CHAR_UNSIGNED__"); 380 381 // Define fixed-sized integer types for stdint.h 382 assert(TI.getCharWidth() == 8 && "unsupported target types"); 383 assert(TI.getShortWidth() == 16 && "unsupported target types"); 384 DefineBuiltinMacro(Buf, "__INT8_TYPE__=char"); 385 DefineBuiltinMacro(Buf, "__INT16_TYPE__=short"); 386 387 if (TI.getIntWidth() == 32) 388 DefineBuiltinMacro(Buf, "__INT32_TYPE__=int"); 389 else { 390 assert(TI.getLongLongWidth() == 32 && "unsupported target types"); 391 DefineBuiltinMacro(Buf, "__INT32_TYPE__=long long"); 392 } 393 394 // 16-bit targets doesn't necessarily have a 64-bit type. 395 if (TI.getLongLongWidth() == 64) 396 DefineType("__INT64_TYPE__", TI.getInt64Type(), Buf); 397 398 // Add __builtin_va_list typedef. 399 { 400 const char *VAList = TI.getVAListDeclaration(); 401 Buf.insert(Buf.end(), VAList, VAList+strlen(VAList)); 402 Buf.push_back('\n'); 403 } 404 405 if (const char *Prefix = TI.getUserLabelPrefix()) { 406 sprintf(MacroBuf, "__USER_LABEL_PREFIX__=%s", Prefix); 407 DefineBuiltinMacro(Buf, MacroBuf); 408 } 409 410 // Build configuration options. FIXME: these should be controlled by 411 // command line options or something. 412 DefineBuiltinMacro(Buf, "__FINITE_MATH_ONLY__=0"); 413 414 if (LangOpts.GNUInline) 415 DefineBuiltinMacro(Buf, "__GNUC_GNU_INLINE__=1"); 416 else 417 DefineBuiltinMacro(Buf, "__GNUC_STDC_INLINE__=1"); 418 419 if (LangOpts.NoInline) 420 DefineBuiltinMacro(Buf, "__NO_INLINE__=1"); 421 422 if (unsigned PICLevel = LangOpts.PICLevel) { 423 sprintf(MacroBuf, "__PIC__=%d", PICLevel); 424 DefineBuiltinMacro(Buf, MacroBuf); 425 426 sprintf(MacroBuf, "__pic__=%d", PICLevel); 427 DefineBuiltinMacro(Buf, MacroBuf); 428 } 429 430 // Macros to control C99 numerics and <float.h> 431 DefineBuiltinMacro(Buf, "__FLT_EVAL_METHOD__=0"); 432 DefineBuiltinMacro(Buf, "__FLT_RADIX__=2"); 433 sprintf(MacroBuf, "__DECIMAL_DIG__=%d", 434 PickFP(&TI.getLongDoubleFormat(), -1/*FIXME*/, 17, 21, 33, 36)); 435 DefineBuiltinMacro(Buf, MacroBuf); 436 437 if (LangOpts.getStackProtectorMode() == LangOptions::SSPOn) 438 DefineBuiltinMacro(Buf, "__SSP__=1"); 439 else if (LangOpts.getStackProtectorMode() == LangOptions::SSPReq) 440 DefineBuiltinMacro(Buf, "__SSP_ALL__=2"); 441 442 // Get other target #defines. 443 TI.getTargetDefines(LangOpts, Buf); 444 } 445 446 /// InitializePreprocessor - Initialize the preprocessor getting it and the 447 /// environment ready to process a single file. This returns true on error. 448 /// 449 bool InitializePreprocessor(Preprocessor &PP, 450 const PreprocessorInitOptions& InitOpts) { 451 std::vector<char> PredefineBuffer; 452 453 const char *LineDirective = "# 1 \"<built-in>\" 3\n"; 454 PredefineBuffer.insert(PredefineBuffer.end(), 455 LineDirective, LineDirective+strlen(LineDirective)); 456 457 // Install things like __POWERPC__, __GNUC__, etc into the macro table. 458 InitializePredefinedMacros(PP.getTargetInfo(), PP.getLangOptions(), 459 PredefineBuffer); 460 461 // Add on the predefines from the driver. Wrap in a #line directive to report 462 // that they come from the command line. 463 LineDirective = "# 1 \"<command line>\" 1\n"; 464 PredefineBuffer.insert(PredefineBuffer.end(), 465 LineDirective, LineDirective+strlen(LineDirective)); 466 467 // Process #define's and #undef's in the order they are given. 468 for (PreprocessorInitOptions::macro_iterator I = InitOpts.macro_begin(), 469 E = InitOpts.macro_end(); I != E; ++I) { 470 if (I->second) // isUndef 471 UndefineBuiltinMacro(PredefineBuffer, I->first.c_str()); 472 else 473 DefineBuiltinMacro(PredefineBuffer, I->first.c_str()); 474 } 475 476 // If -imacros are specified, include them now. These are processed before 477 // any -include directives. 478 for (PreprocessorInitOptions::imacro_iterator I = InitOpts.imacro_begin(), 479 E = InitOpts.imacro_end(); I != E; ++I) 480 AddImplicitIncludeMacros(PredefineBuffer, *I); 481 482 // Process -include directives. 483 for (PreprocessorInitOptions::include_iterator I = InitOpts.include_begin(), 484 E = InitOpts.include_end(); I != E; ++I) { 485 if (I->second) // isPTH 486 AddImplicitIncludePTH(PredefineBuffer, PP, I->first); 487 else 488 AddImplicitInclude(PredefineBuffer, I->first); 489 } 490 491 // Null terminate PredefinedBuffer and add it. 492 PredefineBuffer.push_back(0); 493 PP.setPredefines(&PredefineBuffer[0]); 494 495 // Once we've read this, we're done. 496 return false; 497 } 498 499 } // namespace clang 500