struct answer;
struct file_name_map_list;
-/* The first two groups, apart from '=', can appear in preprocessor
- expressions. This allows a lookup table to be implemented in
- _cpp_parse_expr.
+/* The first three groups, apart from '=', can appear in preprocessor
+ expressions (+= and -= are used to indicate unary + and - resp.).
+ This allows a lookup table to be implemented in _cpp_parse_expr.
The first group, to CPP_LAST_EQ, can be immediately followed by an
'='. The lexer needs operators ending in '=', like ">>=", to be in
#define CPP_LAST_EQ CPP_MAX
#define CPP_FIRST_DIGRAPH CPP_HASH
#define CPP_LAST_PUNCTUATOR CPP_DOT_STAR
+#define CPP_LAST_CPP_OP CPP_LESS_EQ
#define TTYPE_TABLE \
OP(CPP_EQ = 0, "=") \
OP(CPP_COMMA, ",") /* grouping */ \
OP(CPP_OPEN_PAREN, "(") \
OP(CPP_CLOSE_PAREN, ")") \
+ TK(CPP_EOF, SPELL_NONE) \
OP(CPP_EQ_EQ, "==") /* compare */ \
OP(CPP_NOT_EQ, "!=") \
OP(CPP_GREATER_EQ, ">=") \
OP(CPP_LESS_EQ, "<=") \
\
+ /* These two are unary + / - in preprocessor expressions. */ \
OP(CPP_PLUS_EQ, "+=") /* math */ \
OP(CPP_MINUS_EQ, "-=") \
+\
OP(CPP_MULT_EQ, "*=") \
OP(CPP_DIV_EQ, "/=") \
OP(CPP_MOD_EQ, "%=") \
TK(CPP_COMMENT, SPELL_NUMBER) /* Only if output comments. */ \
/* SPELL_NUMBER happens to DTRT. */ \
TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
- TK(CPP_PADDING, SPELL_NONE) /* Whitespace for cpp0. */ \
- TK(CPP_EOF, SPELL_NONE) /* End of line or file. */
+ TK(CPP_PADDING, SPELL_NONE) /* Whitespace for cpp0. */
#define OP(e, s) e,
#define TK(e, s) e,
/* C language kind, used when calling cpp_reader_init. */
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
- CLK_GNUCXX, CLK_CXX98, CLK_OBJC, CLK_OBJCXX, CLK_ASM};
+ CLK_GNUCXX, CLK_CXX98, CLK_ASM};
/* Payload of a NUMBER, STRING, CHAR or COMMENT token. */
struct cpp_string
} val;
};
-/* A standalone character. We may want to make it unsigned for the
- same reason we use unsigned char - to avoid signedness issues. */
-typedef int cppchar_t;
+/* A type wide enough to hold any multibyte source character.
+ cpplib's character constant interpreter requires an unsigned type.
+ Also, a typedef for the signed equivalent. */
+#ifndef MAX_WCHAR_TYPE_SIZE
+# define MAX_WCHAR_TYPE_SIZE WCHAR_TYPE_SIZE
+#endif
+#if CHAR_BIT * SIZEOF_INT >= MAX_WCHAR_TYPE_SIZE
+# define CPPCHAR_SIGNED_T int
+#else
+# if CHAR_BIT * SIZEOF_LONG >= MAX_WCHAR_TYPE_SIZE || !HAVE_LONG_LONG
+# define CPPCHAR_SIGNED_T long
+# else
+# define CPPCHAR_SIGNED_T long long
+# endif
+#endif
+typedef unsigned CPPCHAR_SIGNED_T cppchar_t;
+typedef CPPCHAR_SIGNED_T cppchar_signed_t;
/* Values for opts.dump_macros.
dump_only means inhibit output of the preprocessed text
const char *include_prefix;
unsigned int include_prefix_len;
- /* -fleading_underscore sets this to "_". */
- const char *user_label_prefix;
-
/* The language we're preprocessing. */
enum c_lang lang;
/* Nonzero means handle cplusplus style comments */
unsigned char cplusplus_comments;
- /* Nonzero means handle #import, for objective C. */
+ /* Nonzero means define __OBJC__, treat @ as a special token, and
+ use the OBJC[PLUS]_INCLUDE_PATH environment variable. */
unsigned char objc;
/* Nonzero means don't copy comments into the output file. */
unsigned char discard_comments;
+ /* Nonzero means don't copy comments into the output file during
+ macro expansion. */
+ unsigned char discard_comments_in_macro_exp;
+
/* Nonzero means process the ISO trigraph sequences. */
unsigned char trigraphs;
/* Nonzero means warn if #import is used. */
unsigned char warn_import;
+ /* Nonzero means warn about multicharacter charconsts. */
+ unsigned char warn_multichar;
+
/* Nonzero means warn about various incompatibilities with
traditional C. */
unsigned char warn_traditional;
+ /* Nonzero means warn about text after an #endif (or #else). */
+ unsigned char warn_endif_labels;
+
/* Nonzero means turn warnings into errors. */
unsigned char warnings_are_errors;
options. Stand-alone CPP should then bail out after option
parsing; drivers might want to continue printing help. */
unsigned char help_only;
+
+ /* True for traditional preprocessing. */
+ unsigned char traditional;
+
+ /* Target-specific features set by the front end or client. */
+
+ /* Precision for target CPP arithmetic, target characters, target
+ ints and target wide characters, respectively. */
+ size_t precision, char_precision, int_precision, wchar_precision;
+
+ /* Nonzero means chars (wide chars) are unsigned. */
+ unsigned char unsigned_char, unsigned_wchar;
+
+ /* Nonzero means __STDC__ should have the value 0 in system headers. */
+ unsigned char stdc_0_in_system_headers;
};
/* Call backs. */
void (*undef) PARAMS ((cpp_reader *, unsigned int, cpp_hashnode *));
void (*ident) PARAMS ((cpp_reader *, unsigned int, const cpp_string *));
void (*def_pragma) PARAMS ((cpp_reader *, unsigned int));
+ /* Called when the client has a chance to properly register
+ built-ins with cpp_define() and cpp_assert(). */
+ void (*register_builtins) PARAMS ((cpp_reader *));
};
#define CPP_FATAL_LIMIT 1000
structure reliable. Options processing is not completed until you
call cpp_finish_options. */
extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
-extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
+extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **, int));
extern void cpp_post_options PARAMS ((cpp_reader *));
/* This function reads the file, but does not start preprocessing. It
extern void _cpp_backup_tokens PARAMS ((cpp_reader *, unsigned int));
/* Evaluate a CPP_CHAR or CPP_WCHAR token. */
-extern HOST_WIDE_INT
+extern cppchar_t
cpp_interpret_charconst PARAMS ((cpp_reader *, const cpp_token *,
- int, int, unsigned int *));
+ unsigned int *, int *));
+/* Used to register builtins during the register_builtins callback.
+ The text is the same as the command line argument. */
extern void cpp_define PARAMS ((cpp_reader *, const char *));
extern void cpp_assert PARAMS ((cpp_reader *, const char *));
extern void cpp_undef PARAMS ((cpp_reader *, const char *));
int, int));
extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
+/* Diagnostic levels. To get a dianostic without associating a
+ position in the translation unit with it, use cpp_error_with_line
+ with a line number of zero. */
+
+/* Warning, an error with -Werror. */
+#define DL_WARNING 0x00
+/* Same as DL_WARNING, except it is not suppressed in system headers. */
+#define DL_WARNING_SYSHDR 0x01
+/* Warning, an error with -pedantic-errors or -Werror. */
+#define DL_PEDWARN 0x02
+/* An error. */
+#define DL_ERROR 0x03
+/* A fatal error. We do not exit, to support use of cpplib as a
+ library, but may only return CPP_EOF tokens thereon. It is the
+ caller's responsibility to check CPP_FATAL_ERRORS. */
+#define DL_FATAL 0x04
+/* An internal consistency check failed. Prints "internal error: ",
+ otherwise the same as DL_FATAL. */
+#define DL_ICE 0x05
+/* Extracts a diagnostic level from an int. */
+#define DL_EXTRACT(l) (l & 0xf)
+/* Non-zero if a diagnostic level is one of the warnings. */
+#define DL_WARNING_P(l) (DL_EXTRACT (l) >= DL_WARNING \
+ && DL_EXTRACT (l) <= DL_PEDWARN)
+
/* N.B. The error-message-printer prototypes have not been nicely
formatted because exgettext needs to see 'msgid' on the same line
as the name of the function in order to work properly. Only the
string argument gets a name in an effort to keep the lines from
getting ridiculously oversized. */
-extern void cpp_ice PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_fatal PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_error PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_warning PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_pedwarn PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_notice PARAMS ((cpp_reader *, const char *msgid, ...))
- ATTRIBUTE_PRINTF_2;
-extern void cpp_error_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
- ATTRIBUTE_PRINTF_4;
-extern void cpp_warning_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
- ATTRIBUTE_PRINTF_4;
-extern void cpp_pedwarn_with_line PARAMS ((cpp_reader *, int, int, const char *msgid, ...))
- ATTRIBUTE_PRINTF_4;
-extern void cpp_error_from_errno PARAMS ((cpp_reader *, const char *));
-extern void cpp_notice_from_errno PARAMS ((cpp_reader *, const char *));
+/* Output a diagnostic of some kind. */
+extern void cpp_error PARAMS ((cpp_reader *, int, const char *msgid, ...))
+ ATTRIBUTE_PRINTF_3;
+
+/* Output a diagnostic of severity LEVEL, with "MSG: " preceding the
+ error string of errno. No location is printed. */
+extern void cpp_errno PARAMS ((cpp_reader *, int level, const char *msg));
+
+/* Same as cpp_error, except additionally specifies a position as a
+ (translation unit) physical line and physical column. If the line is
+ zero, then no location is printed. */
+extern void cpp_error_with_line PARAMS ((cpp_reader *, int, unsigned, unsigned, const char *msgid, ...))
+ ATTRIBUTE_PRINTF_5;
/* In cpplex.c */
extern int cpp_ideq PARAMS ((const cpp_token *,
extern void cpp_output_line PARAMS ((cpp_reader *, FILE *));
extern void cpp_output_token PARAMS ((const cpp_token *, FILE *));
extern const char *cpp_type2name PARAMS ((enum cpp_ttype));
-extern unsigned int cpp_parse_escape PARAMS ((cpp_reader *,
- const unsigned char **,
- const unsigned char *,
- unsigned HOST_WIDE_INT, int));
+/* Returns the value of an escape sequence, truncated to the correct
+ target precision. PSTR points to the input pointer, which is just
+ after the backslash. LIMIT is how much text we have. WIDE is true
+ if the escape sequence is part of a wide character constant or
+ string literal. Handles all relevant diagnostics. */
+extern cppchar_t cpp_parse_escape PARAMS ((cpp_reader *,
+ const unsigned char ** pstr,
+ const unsigned char *limit,
+ int wide));
/* In cpphash.c */
/* In cppmacro.c */
extern void cpp_scan_nooutput PARAMS ((cpp_reader *));
extern int cpp_sys_macro_p PARAMS ((cpp_reader *));
+extern unsigned char *cpp_quote_string PARAMS ((unsigned char *,
+ const unsigned char *,
+ unsigned int));
/* In cppfiles.c */
extern int cpp_included PARAMS ((cpp_reader *, const char *));
extern void cpp_make_system_header PARAMS ((cpp_reader *, int, int));
+/* In cppmain.c */
+extern void cpp_preprocess_file PARAMS ((cpp_reader *));
+
#ifdef __cplusplus
}
#endif
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