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252 /* This structure is nested inside struct cpp_reader, and
253 carries all the options visible to the command line. */
254 struct cpp_options
255 {
256 /* Characters between tab stops. */
257 unsigned int tabstop;
258
- C言語の種類を表す
- ANSI CだとかC99だとか
259 /* The language we're preprocessing. */
260 enum c_lang lang;
261
262 /* Nonzero means use extra default include directories for C++. */
263 unsigned char cplusplus;
264
265 /* Nonzero means handle cplusplus style comments. */
266 unsigned char cplusplus_comments;
267
268 /* Nonzero means define __OBJC__, treat @ as a special token, and
269 use the OBJC[PLUS]_INCLUDE_PATH environment variable. */
270 unsigned char objc;
271
272 /* Nonzero means don't copy comments into the output file. */
273 unsigned char discard_comments;
274
275 /* Nonzero means don't copy comments into the output file during
276 macro expansion. */
277 unsigned char discard_comments_in_macro_exp;
278
279 /* Nonzero means process the ISO trigraph sequences. */
280 unsigned char trigraphs;
281
282 /* Nonzero means process the ISO digraph sequences. */
283 unsigned char digraphs;
284
285 /* Nonzero means to allow hexadecimal floats and LL suffixes. */
286 unsigned char extended_numbers;
287
288 /* Nonzero means print names of header files (-H). */
289 unsigned char print_include_names;
290
291 /* Nonzero means cpp_pedwarn causes a hard error. */
292 unsigned char pedantic_errors;
293
294 /* Nonzero means don't print warning messages. */
295 unsigned char inhibit_warnings;
296
297 /* Nonzero means complain about deprecated features. */
298 unsigned char warn_deprecated;
299
300 /* Nonzero means don't suppress warnings from system headers. */
301 unsigned char warn_system_headers;
302
303 /* Nonzero means don't print error messages. Has no option to
304 select it, but can be set by a user of cpplib (e.g. fix-header). */
305 unsigned char inhibit_errors;
306
307 /* Nonzero means warn if slash-star appears in a comment. */
308 unsigned char warn_comments;
309
310 /* Nonzero means warn if a user-supplied include directory does not
311 exist. */
312 unsigned char warn_missing_include_dirs;
313
314 /* Nonzero means warn if there are any trigraphs. */
315 unsigned char warn_trigraphs;
316
317 /* Nonzero means warn about multicharacter charconsts. */
318 unsigned char warn_multichar;
319
- 真ならば警告を伝統的なCの形にする
320 /* Nonzero means warn about various incompatibilities with
321 traditional C. */
322 unsigned char warn_traditional;
323
324 /* Nonzero means warn about long long numeric constants. */
325 unsigned char warn_long_long;
326
327 /* Nonzero means warn about text after an #endif (or #else). */
328 unsigned char warn_endif_labels;
329
330 /* Nonzero means warn about implicit sign changes owing to integer
331 promotions. */
332 unsigned char warn_num_sign_change;
333
334 /* Zero means don't warn about __VA_ARGS__ usage in c89 pedantic mode.
335 Presumably the usage is protected by the appropriate #ifdef. */
336 unsigned char warn_variadic_macros;
337
338 /* Nonzero means turn warnings into errors. */
339 unsigned char warnings_are_errors;
340
341 /* Nonzero means we should look for header.gcc files that remap file
342 names. */
343 unsigned char remap;
344
345 /* Zero means dollar signs are punctuation. */
346 unsigned char dollars_in_ident;
347
348 /* Nonzero means UCNs are accepted in identifiers. */
349 unsigned char extended_identifiers;
350
351 /* True if we should warn about dollars in identifiers or numbers
352 for this translation unit. */
353 unsigned char warn_dollars;
354
355 /* Nonzero means warn if undefined identifiers are evaluated in an #if. */
356 unsigned char warn_undef;
357
358 /* Nonzero means warn of unused macros from the main file. */
359 unsigned char warn_unused_macros;
360
361 /* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
362 unsigned char c99;
363
364 /* Nonzero if we are conforming to a specific C or C++ standard. */
365 unsigned char std;
366
- 真ならばエラーメッセージをANSIに従った形にする
367 /* Nonzero means give all the error messages the ANSI standard requires. */
368 unsigned char pedantic;
369
- 非ゼロならばプリプロセシング済み
370 /* Nonzero means we're looking at already preprocessed code, so don't
371 bother trying to do macro expansion and whatnot. */
372 unsigned char preprocessed;
373
- 列
374 /* Print column number in error messages. */
375 unsigned char show_column;
376
377 /* Nonzero means handle C++ alternate operator names. */
378 unsigned char operator_names;
379
380 /* True for traditional preprocessing. */
381 unsigned char traditional;
382
383 /* Holds the name of the target (execution) character set. */
384 const char *narrow_charset;
385
386 /* Holds the name of the target wide character set. */
387 const char *wide_charset;
388
389 /* Holds the name of the input character set. */
390 const char *input_charset;
391
392 /* The minimum permitted level of normalization before a warning
393 is generated. */
394 enum cpp_normalize_level warn_normalize;
395
396 /* True to warn about precompiled header files we couldn't use. */
397 bool warn_invalid_pch;
398
399 /* True if dependencies should be restored from a precompiled header. */
400 bool restore_pch_deps;
401
402 /* Dependency generation. */
403 struct
404 {
405 /* Style of header dependencies to generate. */
406 enum cpp_deps_style style;
407
408 /* Assume missing files are generated files. */
409 bool missing_files;
410
411 /* Generate phony targets for each dependency apart from the first
412 one. */
413 bool phony_targets;
414
415 /* If true, no dependency is generated on the main file. */
416 bool ignore_main_file;
417 } deps;
418
419 /* Target-specific features set by the front end or client. */
420
421 /* Precision for target CPP arithmetic, target characters, target
422 ints and target wide characters, respectively. */
423 size_t precision, char_precision, int_precision, wchar_precision;
424
425 /* True means chars (wide chars) are unsigned. */
426 bool unsigned_char, unsigned_wchar;
427
428 /* True if the most significant byte in a word has the lowest
429 address in memory. */
430 bool bytes_big_endian;
431
432 /* Nonzero means __STDC__ should have the value 0 in system headers. */
433 unsigned char stdc_0_in_system_headers;
434
435 /* True means return pragmas as tokens rather than processing
436 them directly. */
437 bool defer_pragmas;
438
439 /* True means error callback should be used for diagnostics. */
440 bool client_diagnostic;
441 };