/* Definitions for CPP library.
- Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Free Software Foundation, Inc.
Written by Per Bothner, 1994-95.
extern "C" {
#endif
-/* For complex reasons, cpp_reader is also typedefed in c-pragma.h. */
-#ifndef GCC_C_PRAGMA_H
typedef struct cpp_reader cpp_reader;
-#endif
typedef struct cpp_buffer cpp_buffer;
typedef struct cpp_options cpp_options;
typedef struct cpp_token cpp_token;
typedef struct cpp_string cpp_string;
typedef struct cpp_hashnode cpp_hashnode;
typedef struct cpp_macro cpp_macro;
-typedef struct cpp_lexer_pos cpp_lexer_pos;
-typedef struct cpp_lookahead cpp_lookahead;
typedef struct cpp_callbacks cpp_callbacks;
+typedef struct cpp_dir cpp_dir;
struct answer;
-struct file_name_map_list;
+struct _cpp_file;
-/* 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, "%=") \
OP(CPP_SCOPE, "::") \
OP(CPP_DEREF_STAR, "->*") \
OP(CPP_DOT_STAR, ".*") \
- OP(CPP_ATSIGN, "@") /* used in Objective C */ \
+ OP(CPP_ATSIGN, "@") /* used in Objective-C */ \
\
TK(CPP_NAME, SPELL_IDENT) /* word */ \
- TK(CPP_NUMBER, SPELL_STRING) /* 34_be+ta */ \
+ TK(CPP_AT_NAME, SPELL_IDENT) /* @word - Objective-C */ \
+ TK(CPP_NUMBER, SPELL_LITERAL) /* 34_be+ta */ \
\
- TK(CPP_CHAR, SPELL_STRING) /* 'char' */ \
- TK(CPP_WCHAR, SPELL_STRING) /* L'char' */ \
- TK(CPP_OTHER, SPELL_CHAR) /* stray punctuation */ \
+ TK(CPP_CHAR, SPELL_LITERAL) /* 'char' */ \
+ TK(CPP_WCHAR, SPELL_LITERAL) /* L'char' */ \
+ TK(CPP_OTHER, SPELL_LITERAL) /* stray punctuation */ \
\
- TK(CPP_STRING, SPELL_STRING) /* "string" */ \
- TK(CPP_WSTRING, SPELL_STRING) /* L"string" */ \
- TK(CPP_HEADER_NAME, SPELL_STRING) /* <stdio.h> in #include */ \
+ TK(CPP_STRING, SPELL_LITERAL) /* "string" */ \
+ TK(CPP_WSTRING, SPELL_LITERAL) /* L"string" */ \
+ TK(CPP_OBJC_STRING, SPELL_LITERAL) /* @"string" - Objective-C */ \
+ TK(CPP_HEADER_NAME, SPELL_LITERAL) /* <stdio.h> in #include */ \
\
- TK(CPP_COMMENT, SPELL_STRING) /* Only if output comments. */ \
+ TK(CPP_COMMENT, SPELL_LITERAL) /* Only if output comments. */ \
+ /* SPELL_LITERAL happens to DTRT. */ \
TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
- OP(CPP_EOF, "EOL") /* 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, FLOAT, STRING, or COMMENT token. */
+/* Payload of a NUMBER, STRING, CHAR or COMMENT token. */
struct cpp_string
{
unsigned int len;
#define PASTE_LEFT (1 << 3) /* If on LHS of a ## operator. */
#define NAMED_OP (1 << 4) /* C++ named operators. */
#define NO_EXPAND (1 << 5) /* Do not macro-expand this token. */
-#define AVOID_LPASTE (1 << 6) /* Check left for accidental pastes. */
-#define BOL (1 << 7) /* Token at beginning of line. */
+#define BOL (1 << 6) /* Token at beginning of line. */
/* A preprocessing token. This has been carefully packed and should
- occupy 12 bytes on 32-bit hosts and 16 bytes on 64-bit hosts. */
+ occupy 16 bytes on 32-bit hosts and 24 bytes on 64-bit hosts. */
struct cpp_token
{
- unsigned int line; /* Logical line of first char of token. */
- unsigned short col; /* Column of first char of token. */
+ source_location src_loc; /* Location of first char of token. */
ENUM_BITFIELD(cpp_ttype) type : CHAR_BIT; /* token type */
unsigned char flags; /* flags - see above */
union
{
cpp_hashnode *node; /* An identifier. */
+ const cpp_token *source; /* Inherit padding from this token. */
struct cpp_string str; /* A string, or number. */
unsigned int arg_no; /* Argument no. for a CPP_MACRO_ARG. */
- unsigned char c; /* Character represented by CPP_OTHER. */
} val;
};
-/* The position of a token in the current file. */
-struct cpp_lexer_pos
-{
- unsigned int line;
- unsigned int output_line;
- unsigned short col;
-};
-
-typedef struct cpp_token_with_pos cpp_token_with_pos;
-struct cpp_token_with_pos
-{
- cpp_token token;
- cpp_lexer_pos pos;
-};
-
-/* Token lookahead. */
-struct cpp_lookahead
-{
- struct cpp_lookahead *next;
- cpp_token_with_pos *tokens;
- cpp_lexer_pos pos;
- unsigned int cur, count, cap;
-};
-
-/* 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;
-
-/* Values for opts.dump_macros.
- dump_only means inhibit output of the preprocessed text
- and instead output the definitions of all user-defined
- macros in a form suitable for use as input to cpp.
- dump_names means pass #define and the macro name through to output.
- dump_definitions means pass the whole definition (plus #define) through
-*/
-enum { dump_none = 0, dump_only, dump_names, dump_definitions };
+/* 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.
+ The width of this type is capped at 32 bits; there do exist targets
+ where wchar_t is 64 bits, but only in a non-default mode, and there
+ would be no meaningful interpretation for a wchar_t value greater
+ than 2^32 anyway -- the widest wide-character encoding around is
+ ISO 10646, which stops at 2^31. */
+#if CHAR_BIT * SIZEOF_INT >= 32
+# define CPPCHAR_SIGNED_T int
+#elif CHAR_BIT * SIZEOF_LONG >= 32
+# define CPPCHAR_SIGNED_T long
+#else
+# error "Cannot find a least-32-bit signed integer type"
+#endif
+typedef unsigned CPPCHAR_SIGNED_T cppchar_t;
+typedef CPPCHAR_SIGNED_T cppchar_signed_t;
/* This structure is nested inside struct cpp_reader, and
carries all the options visible to the command line. */
struct cpp_options
{
- /* Name of input and output files. */
- const char *in_fname;
- const char *out_fname;
-
/* Characters between tab stops. */
unsigned int tabstop;
- /* Pending options - -D, -U, -A, -I, -ixxx. */
- struct cpp_pending *pending;
-
- /* File name which deps are being written to. This is 0 if deps are
- being written to stdout. */
- const char *deps_file;
-
- /* Search paths for include files. */
- struct search_path *quote_include; /* "" */
- struct search_path *bracket_include; /* <> */
-
- /* Map between header names and file names, used only on DOS where
- file names are limited in length. */
- struct file_name_map_list *map_list;
-
- /* Directory prefix that should replace `/usr/lib/gcc-lib/TARGET/VERSION'
- in the standard include file directories. */
- 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;
- /* Non-0 means -v, so print the full set of include dirs. */
- unsigned char verbose;
-
/* Nonzero means use extra default include directories for C++. */
unsigned char cplusplus;
- /* Nonzero means handle cplusplus style comments */
+ /* 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 to allow hexadecimal floats and LL suffixes. */
unsigned char extended_numbers;
- /* Nonzero means print the names of included files rather than the
- preprocessed output. 1 means just the #include "...", 2 means
- #include <...> as well. */
- unsigned char print_deps;
-
- /* Nonzero if phony targets are created for each header. */
- unsigned char deps_phony_targets;
-
- /* Nonzero if missing .h files in -M output are assumed to be
- generated files and not errors. */
- unsigned char print_deps_missing_files;
-
- /* If true, fopen (deps_file, "a") else fopen (deps_file, "w"). */
- unsigned char print_deps_append;
-
/* Nonzero means print names of header files (-H). */
unsigned char print_include_names;
/* Nonzero means don't print warning messages. */
unsigned char inhibit_warnings;
+ /* Nonzero means complain about deprecated features. */
+ unsigned char warn_deprecated;
+
/* Nonzero means don't suppress warnings from system headers. */
unsigned char warn_system_headers;
/* Nonzero means warn if there are any trigraphs. */
unsigned char warn_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 long long numeric constants. */
+ unsigned char warn_long_long;
+
+ /* Nonzero means warn about text after an #endif (or #else). */
+ unsigned char warn_endif_labels;
+
+ /* Nonzero means warn about implicit sign changes owing to integer
+ promotions. */
+ unsigned char warn_num_sign_change;
+
+ /* Zero means don't warn about __VA_ARGS__ usage in c89 pedantic mode.
+ Presumably the usage is protected by the appropriate #ifdef. */
+ unsigned char warn_variadic_macros;
+
/* Nonzero means turn warnings into errors. */
unsigned char warnings_are_errors;
- /* Nonzero causes output not to be done, but directives such as
- #define that have side effects are still obeyed. */
- unsigned char no_output;
-
/* Nonzero means we should look for header.gcc files that remap file
names. */
unsigned char remap;
- /* Nonzero means don't output line number information. */
- unsigned char no_line_commands;
-
- /* Nonzero means -I- has been seen, so don't look for #include "foo"
- the source-file directory. */
- unsigned char ignore_srcdir;
-
- /* Zero means dollar signs are punctuation. */
+ /* Zero means dollar signs are punctuation. */
unsigned char dollars_in_ident;
+ /* True if we should warn about dollars in identifiers or numbers
+ for this translation unit. */
+ unsigned char warn_dollars;
+
/* Nonzero means warn if undefined identifiers are evaluated in an #if. */
unsigned char warn_undef;
+ /* Nonzero means warn of unused macros from the main file. */
+ unsigned char warn_unused_macros;
+
/* Nonzero for the 1999 C Standard, including corrigenda and amendments. */
unsigned char c99;
+ /* Nonzero if we are conforming to a specific C or C++ standard. */
+ unsigned char std;
+
/* Nonzero means give all the error messages the ANSI standard requires. */
unsigned char pedantic;
bother trying to do macro expansion and whatnot. */
unsigned char preprocessed;
- /* Nonzero disables all the standard directories for headers. */
- unsigned char no_standard_includes;
+ /* Print column number in error messages. */
+ unsigned char show_column;
- /* Nonzero disables the C++-specific standard directories for headers. */
- unsigned char no_standard_cplusplus_includes;
+ /* Nonzero means handle C++ alternate operator names. */
+ unsigned char operator_names;
- /* Nonzero means dump macros in some fashion - see above. */
- unsigned char dump_macros;
+ /* True for traditional preprocessing. */
+ unsigned char traditional;
- /* Nonzero means pass #include lines through to the output. */
- unsigned char dump_includes;
+ /* Holds the name of the target (execution) character set. */
+ const char *narrow_charset;
- /* Print column number in error messages. */
- unsigned char show_column;
+ /* Holds the name of the target wide character set. */
+ const char *wide_charset;
- /* Treat C++ alternate operator names special. */
- unsigned char operator_names;
+ /* Holds the name of the input character set. */
+ const char *input_charset;
+
+ /* True to warn about precompiled header files we couldn't use. */
+ bool warn_invalid_pch;
+
+ /* True if dependencies should be restored from a precompiled header. */
+ bool restore_pch_deps;
+
+ /* Dependency generation. */
+ struct
+ {
+ /* Style of header dependencies to generate. */
+ enum {DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM } style;
+
+ /* Assume missing files are generated files. */
+ bool missing_files;
+
+ /* Generate phony targets for each dependency apart from the first
+ one. */
+ bool phony_targets;
+
+ /* If true, no dependency is generated on the main file. */
+ bool ignore_main_file;
+ } deps;
- /* True if --help, --version or --target-help appeared in the
- options. Stand-alone CPP should then bail out after option
- parsing; drivers might want to continue printing help. */
- unsigned char help_only;
+ /* 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;
+
+ /* True means chars (wide chars) are unsigned. */
+ bool unsigned_char, unsigned_wchar;
+
+ /* True if the most significant byte in a word has the lowest
+ address in memory. */
+ bool bytes_big_endian;
+
+ /* Nonzero means __STDC__ should have the value 0 in system headers. */
+ unsigned char stdc_0_in_system_headers;
};
-/* Call backs. */
+/* Callback for header lookup for HEADER, which is the name of a
+ source file. It is used as a method of last resort to find headers
+ that are not otherwise found during the normal include processing.
+ The return value is the malloced name of a header to try and open,
+ if any, or NULL otherwise. This callback is called only if the
+ header is otherwise unfound. */
+typedef const char *(*missing_header_cb)(cpp_reader *, const char *header);
+
+/* Call backs to cpplib client. */
struct cpp_callbacks
{
- void (*file_change) PARAMS ((cpp_reader *, const struct line_map *));
- void (*include) PARAMS ((cpp_reader *, unsigned int,
- const unsigned char *, const cpp_token *));
- void (*define) PARAMS ((cpp_reader *, unsigned int, cpp_hashnode *));
- 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 a new line of preprocessed output is started. */
+ void (*line_change) (cpp_reader *, const cpp_token *, int);
+
+ /* Called when switching to/from a new file.
+ The line_map is for the new file. It is NULL if there is no new file.
+ (In C this happens when done with <built-in>+<command line> and also
+ when done with a main file.) This can be used for resource cleanup. */
+ void (*file_change) (cpp_reader *, const struct line_map *);
+
+ void (*dir_change) (cpp_reader *, const char *);
+ void (*include) (cpp_reader *, unsigned int, const unsigned char *,
+ const char *, int);
+ void (*define) (cpp_reader *, unsigned int, cpp_hashnode *);
+ void (*undef) (cpp_reader *, unsigned int, cpp_hashnode *);
+ void (*ident) (cpp_reader *, unsigned int, const cpp_string *);
+ void (*def_pragma) (cpp_reader *, unsigned int);
+ int (*valid_pch) (cpp_reader *, const char *, int);
+ void (*read_pch) (cpp_reader *, const char *, int, const char *);
+ missing_header_cb missing_header;
};
-#define CPP_FATAL_LIMIT 1000
-/* True if we have seen a "fatal" error. */
-#define CPP_FATAL_ERRORS(PFILE) (cpp_errors (PFILE) >= CPP_FATAL_LIMIT)
+/* Chain of directories to look for include files in. */
+struct cpp_dir
+{
+ /* NULL-terminated singly-linked list. */
+ struct cpp_dir *next;
+
+ /* NAME of the directory, NUL-terminated. */
+ char *name;
+ unsigned int len;
+
+ /* One if a system header, two if a system header that has extern
+ "C" guards for C++. */
+ unsigned char sysp;
+
+ /* Mapping of file names for this directory for MS-DOS and related
+ platforms. A NULL-terminated array of (from, to) pairs. */
+ const char **name_map;
+
+ /* Routine to construct pathname, given the search path name and the
+ HEADER we are trying to find, return a constructed pathname to
+ try and open. If this is NULL, the constructed pathname is as
+ constructed by append_file_to_dir. */
+ char *(*construct) (const char *header, cpp_dir *dir);
+
+ /* The C front end uses these to recognize duplicated
+ directories in the search path. */
+ ino_t ino;
+ dev_t dev;
+};
/* Name under which this program was invoked. */
extern const char *progname;
entries for all identifiers: either macros defined by #define
commands (type NT_MACRO), assertions created with #assert
(NT_ASSERTION), or neither of the above (NT_VOID). Builtin macros
- like __LINE__ are flagged NODE_BUILTIN. Poisioned identifiers are
+ like __LINE__ are flagged NODE_BUILTIN. Poisoned identifiers are
flagged NODE_POISONED. NODE_OPERATOR (C++ only) indicates an
identifier that behaves like an operator such as "xor".
NODE_DIAGNOSTIC is for speed in lex_token: it indicates a
#define NODE_BUILTIN (1 << 2) /* Builtin macro. */
#define NODE_DIAGNOSTIC (1 << 3) /* Possible diagnostic when lexed. */
#define NODE_WARN (1 << 4) /* Warn if redefined or undefined. */
+#define NODE_DISABLED (1 << 5) /* A disabled macro. */
+#define NODE_MACRO_ARG (1 << 6) /* Used during #define processing. */
/* Different flavors of hash node. */
enum node_type
NT_ASSERTION /* Predicate for #assert. */
};
-/* Different flavors of builtin macro. */
+/* Different flavors of builtin macro. _Pragma is an operator, but we
+ handle it with the builtin code for efficiency reasons. */
enum builtin_type
{
BT_SPECLINE = 0, /* `__LINE__' */
BT_BASE_FILE, /* `__BASE_FILE__' */
BT_INCLUDE_LEVEL, /* `__INCLUDE_LEVEL__' */
BT_TIME, /* `__TIME__' */
- BT_STDC /* `__STDC__' */
+ BT_STDC, /* `__STDC__' */
+ BT_PRAGMA /* `_Pragma' operator */
};
#define CPP_HASHNODE(HNODE) ((cpp_hashnode *) (HNODE))
/* The common part of an identifier node shared amongst all 3 C front
ends. Also used to store CPP identifiers, which are a superset of
identifiers in the grammatical sense. */
-struct cpp_hashnode
+struct cpp_hashnode GTY(())
{
struct ht_identifier ident;
- unsigned short arg_index; /* Macro argument index. */
- unsigned char directive_index; /* Index into directive table. */
+ unsigned int is_directive : 1;
+ unsigned int directive_index : 7; /* If is_directive,
+ then index into directive table.
+ Otherwise, a NODE_OPERATOR. */
unsigned char rid_code; /* Rid code - for front ends. */
ENUM_BITFIELD(node_type) type : 8; /* CPP node type. */
unsigned char flags; /* CPP flags. */
- union
+ union _cpp_hashnode_value
{
- cpp_macro *macro; /* If a macro. */
- struct answer *answers; /* Answers to an assertion. */
- enum cpp_ttype operator; /* Code for a named operator. */
- enum builtin_type builtin; /* Code for a builtin macro. */
- } value;
+ /* If a macro. */
+ cpp_macro * GTY((skip (""))) macro;
+ /* Answers to an assertion. */
+ struct answer * GTY ((skip (""))) answers;
+ /* Code for a builtin macro. */
+ enum builtin_type GTY ((tag ("1"))) builtin;
+ /* Macro argument index. */
+ unsigned short GTY ((tag ("0"))) arg_index;
+ } GTY ((desc ("0"))) value;
};
-/* Call this first to get a handle to pass to other functions. If you
- want cpplib to manage its own hashtable, pass in a NULL pointer.
- Or you can pass in an initialised hash table that cpplib will use;
- this technique is used by the C front ends. */
-extern cpp_reader *cpp_create_reader PARAMS ((struct ht *,
- enum c_lang));
+/* Call this first to get a handle to pass to other functions.
+
+ If you want cpplib to manage its own hashtable, pass in a NULL
+ pointer. Otherwise you should pass in an initialized hash table
+ that cpplib will share; this technique is used by the C front
+ ends. */
+extern cpp_reader *cpp_create_reader (enum c_lang, struct ht *,
+ struct line_maps *);
-/* Call this to release the handle. Any use of the handle after this
- function returns is invalid. Returns cpp_errors (pfile). */
-extern int cpp_destroy PARAMS ((cpp_reader *));
+/* Call this to change the selected language standard (e.g. because of
+ command line options). */
+extern void cpp_set_lang (cpp_reader *, enum c_lang);
+
+/* Add a dependency TARGET. Quote it for "make" if QUOTE. Can be
+ called any number of times before cpp_read_main_file(). If no
+ targets have been added before cpp_read_main_file(), then the
+ default target is used. */
+extern void cpp_add_dependency_target (cpp_reader *, const char *, int);
+
+/* Set the include paths. */
+extern void cpp_set_include_chains (cpp_reader *, cpp_dir *, cpp_dir *, int);
/* Call these to get pointers to the options and callback structures
for a given reader. These pointers are good until you call
cpp_finish on that reader. You can either edit the callbacks
through the pointer returned from cpp_get_callbacks, or set them
with cpp_set_callbacks. */
-extern cpp_options *cpp_get_options PARAMS ((cpp_reader *));
-extern const struct line_maps *cpp_get_line_maps PARAMS ((cpp_reader *));
-extern cpp_callbacks *cpp_get_callbacks PARAMS ((cpp_reader *));
-extern void cpp_set_callbacks PARAMS ((cpp_reader *, cpp_callbacks *));
-
-/* Now call cpp_handle_option[s] to handle 1[or more] switches. The
- return value is the number of arguments used. If
- cpp_handle_options returns without using all arguments, it couldn't
- understand the next switch. When there are no switches left, you
- must call cpp_post_options before calling cpp_start_read. Only
- after cpp_post_options are the contents of the cpp_options
- structure reliable. */
-extern int cpp_handle_options PARAMS ((cpp_reader *, int, char **));
-extern int cpp_handle_option PARAMS ((cpp_reader *, int, char **));
-extern void cpp_post_options PARAMS ((cpp_reader *));
+extern cpp_options *cpp_get_options (cpp_reader *);
+extern cpp_callbacks *cpp_get_callbacks (cpp_reader *);
+extern void cpp_set_callbacks (cpp_reader *, cpp_callbacks *);
+
+/* This function reads the file, but does not start preprocessing. It
+ returns the name of the original file; this is the same as the
+ input file, except for preprocessed input. This will generate at
+ least one file change callback, and possibly a line change callback
+ too. If there was an error opening the file, it returns NULL. */
+extern const char *cpp_read_main_file (cpp_reader *, const char *);
+
+/* Set up built-ins like __FILE__. */
+extern void cpp_init_builtins (cpp_reader *, int);
+
+/* This is called after options have been parsed, and partially
+ processed. */
+extern void cpp_post_options (cpp_reader *);
+
+/* Set up translation to the target character set. */
+extern void cpp_init_iconv (cpp_reader *);
+
+/* Call this to finish preprocessing. If you requested dependency
+ generation, pass an open stream to write the information to,
+ otherwise NULL. It is your responsibility to close the stream.
+
+ Returns cpp_errors (pfile). */
+extern int cpp_finish (cpp_reader *, FILE *deps_stream);
+
+/* Call this to release the handle at the end of preprocessing. Any
+ use of the handle after this function returns is invalid. Returns
+ cpp_errors (pfile). */
+extern void cpp_destroy (cpp_reader *);
/* Error count. */
-extern unsigned int cpp_errors PARAMS ((cpp_reader *));
-
-extern unsigned int cpp_token_len PARAMS ((const cpp_token *));
-extern unsigned char *cpp_token_as_text PARAMS ((cpp_reader *,
- const cpp_token *));
-extern unsigned char *cpp_spell_token PARAMS ((cpp_reader *, const cpp_token *,
- unsigned char *));
-extern void cpp_register_pragma PARAMS ((cpp_reader *,
- const char *, const char *,
- void (*) PARAMS ((cpp_reader *))));
-extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
-
-extern int cpp_start_read PARAMS ((cpp_reader *, const char *));
-extern void cpp_finish PARAMS ((cpp_reader *));
-extern int cpp_avoid_paste PARAMS ((cpp_reader *, const cpp_token *,
- const cpp_token *));
-extern enum cpp_ttype cpp_can_paste PARAMS ((cpp_reader *, const cpp_token *,
- const cpp_token *, int *));
-extern void cpp_get_token PARAMS ((cpp_reader *, cpp_token *));
-extern const cpp_lexer_pos *cpp_get_line PARAMS ((cpp_reader *));
-extern const unsigned char *cpp_macro_definition PARAMS ((cpp_reader *,
- const cpp_hashnode *));
-extern void _cpp_backup_tokens PARAMS ((cpp_reader *, unsigned int));
+extern unsigned int cpp_errors (cpp_reader *);
+
+extern unsigned int cpp_token_len (const cpp_token *);
+extern unsigned char *cpp_token_as_text (cpp_reader *, const cpp_token *);
+extern unsigned char *cpp_spell_token (cpp_reader *, const cpp_token *,
+ unsigned char *);
+extern void cpp_register_pragma (cpp_reader *, const char *, const char *,
+ void (*) (cpp_reader *));
+extern int cpp_avoid_paste (cpp_reader *, const cpp_token *,
+ const cpp_token *);
+extern const cpp_token *cpp_get_token (cpp_reader *);
+extern const unsigned char *cpp_macro_definition (cpp_reader *,
+ const cpp_hashnode *);
+extern void _cpp_backup_tokens (cpp_reader *, unsigned int);
/* Evaluate a CPP_CHAR or CPP_WCHAR token. */
-extern HOST_WIDE_INT
-cpp_interpret_charconst PARAMS ((cpp_reader *, const cpp_token *,
- int, int, unsigned int *));
-
-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 *));
-extern void cpp_unassert PARAMS ((cpp_reader *, const char *));
+extern cppchar_t cpp_interpret_charconst (cpp_reader *, const cpp_token *,
+ unsigned int *, int *);
+/* Evaluate a vector of CPP_STRING or CPP_WSTRING tokens. */
+extern bool cpp_interpret_string (cpp_reader *,
+ const cpp_string *, size_t,
+ cpp_string *, bool);
+extern bool cpp_interpret_string_notranslate (cpp_reader *,
+ const cpp_string *, size_t,
+ cpp_string *, bool);
+
+/* Used to register macros and assertions, perhaps from the command line.
+ The text is the same as the command line argument. */
+extern void cpp_define (cpp_reader *, const char *);
+extern void cpp_assert (cpp_reader *, const char *);
+extern void cpp_undef (cpp_reader *, const char *);
+extern void cpp_unassert (cpp_reader *, const char *);
+
+/* Undefine all macros and assertions. */
+extern void cpp_undef_all (cpp_reader *);
+
+extern cpp_buffer *cpp_push_buffer (cpp_reader *, const unsigned char *,
+ size_t, int);
+extern int cpp_defined (cpp_reader *, const unsigned char *, int);
+
+/* A preprocessing number. Code assumes that any unused high bits of
+ the double integer are set to zero. */
+typedef unsigned HOST_WIDE_INT cpp_num_part;
+typedef struct cpp_num cpp_num;
+struct cpp_num
+{
+ cpp_num_part high;
+ cpp_num_part low;
+ bool unsignedp; /* True if value should be treated as unsigned. */
+ bool overflow; /* True if the most recent calculation overflowed. */
+};
-extern cpp_buffer *cpp_push_buffer PARAMS ((cpp_reader *,
- const unsigned char *, size_t,
- int, int));
-extern int cpp_defined PARAMS ((cpp_reader *, const unsigned char *, int));
+/* cpplib provides two interfaces for interpretation of preprocessing
+ numbers.
+
+ cpp_classify_number categorizes numeric constants according to
+ their field (integer, floating point, or invalid), radix (decimal,
+ octal, hexadecimal), and type suffixes. */
+
+#define CPP_N_CATEGORY 0x000F
+#define CPP_N_INVALID 0x0000
+#define CPP_N_INTEGER 0x0001
+#define CPP_N_FLOATING 0x0002
+
+#define CPP_N_WIDTH 0x00F0
+#define CPP_N_SMALL 0x0010 /* int, float. */
+#define CPP_N_MEDIUM 0x0020 /* long, double. */
+#define CPP_N_LARGE 0x0040 /* long long, long double. */
+
+#define CPP_N_RADIX 0x0F00
+#define CPP_N_DECIMAL 0x0100
+#define CPP_N_HEX 0x0200
+#define CPP_N_OCTAL 0x0400
+
+#define CPP_N_UNSIGNED 0x1000 /* Properties. */
+#define CPP_N_IMAGINARY 0x2000
+
+/* Classify a CPP_NUMBER token. The return value is a combination of
+ the flags from the above sets. */
+extern unsigned cpp_classify_number (cpp_reader *, const cpp_token *);
+
+/* Evaluate a token classified as category CPP_N_INTEGER. */
+extern cpp_num cpp_interpret_integer (cpp_reader *, const cpp_token *,
+ unsigned int type);
+
+/* Sign extend a number, with PRECISION significant bits and all
+ others assumed clear, to fill out a cpp_num structure. */
+cpp_num cpp_num_sign_extend (cpp_num, size_t);
+
+/* Diagnostic levels. To get a diagnostic 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 CPP_DL_WARNING 0x00
+/* Same as CPP_DL_WARNING, except it is not suppressed in system headers. */
+#define CPP_DL_WARNING_SYSHDR 0x01
+/* Warning, an error with -pedantic-errors or -Werror. */
+#define CPP_DL_PEDWARN 0x02
+/* An error. */
+#define CPP_DL_ERROR 0x03
+/* An internal consistency check failed. Prints "internal error: ",
+ otherwise the same as CPP_DL_ERROR. */
+#define CPP_DL_ICE 0x04
+/* Extracts a diagnostic level from an int. */
+#define CPP_DL_EXTRACT(l) (l & 0xf)
+/* Nonzero if a diagnostic level is one of the warnings. */
+#define CPP_DL_WARNING_P(l) (CPP_DL_EXTRACT (l) >= CPP_DL_WARNING \
+ && CPP_DL_EXTRACT (l) <= CPP_DL_PEDWARN)
/* N.B. The error-message-printer prototypes have not been nicely
formatted because exgettext needs to see 'msgid' on the same line
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 (cpp_reader *, int, const char *msgid, ...)
+ ATTRIBUTE_PRINTF_3;
+
+/* Output a diagnostic with "MSGID: " preceding the
+ error string of errno. No location is printed. */
+extern void cpp_errno (cpp_reader *, int, const char *msgid);
+
+/* 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 (cpp_reader *, int, source_location, unsigned,
+ const char *msgid, ...) ATTRIBUTE_PRINTF_5;
/* In cpplex.c */
-extern int cpp_ideq PARAMS ((const cpp_token *,
- const char *));
-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));
+extern int cpp_ideq (const cpp_token *, const char *);
+extern void cpp_output_line (cpp_reader *, FILE *);
+extern void cpp_output_token (const cpp_token *, FILE *);
+extern const char *cpp_type2name (enum cpp_ttype);
+/* 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 (cpp_reader *, const unsigned char ** pstr,
+ const unsigned char *limit, int wide);
/* In cpphash.c */
/* Lookup an identifier in the hashtable. Puts the identifier in the
table if it is not already there. */
-extern cpp_hashnode *cpp_lookup PARAMS ((cpp_reader *,
- const unsigned char *,
- unsigned int));
+extern cpp_hashnode *cpp_lookup (cpp_reader *, const unsigned char *,
+ unsigned int);
-typedef int (*cpp_cb) PARAMS ((cpp_reader *, cpp_hashnode *, void *));
-extern void cpp_forall_identifiers PARAMS ((cpp_reader *,
- cpp_cb, void *));
+typedef int (*cpp_cb) (cpp_reader *, cpp_hashnode *, void *);
+extern void cpp_forall_identifiers (cpp_reader *, cpp_cb, void *);
/* In cppmacro.c */
-extern void cpp_scan_nooutput PARAMS ((cpp_reader *));
-extern void cpp_start_lookahead PARAMS ((cpp_reader *));
-extern void cpp_stop_lookahead PARAMS ((cpp_reader *, int));
-extern int cpp_sys_macro_p PARAMS ((cpp_reader *));
+extern void cpp_scan_nooutput (cpp_reader *);
+extern int cpp_sys_macro_p (cpp_reader *);
+extern unsigned char *cpp_quote_string (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));
+extern bool cpp_included (cpp_reader *, const char *);
+extern void cpp_make_system_header (cpp_reader *, int, int);
+extern bool cpp_push_include (cpp_reader *, const char *);
+extern void cpp_change_file (cpp_reader *, enum lc_reason, const char *);
+extern const char *cpp_get_path (struct _cpp_file *);
+extern cpp_buffer *cpp_get_buffer (cpp_reader *);
+extern struct _cpp_file *cpp_get_file (cpp_buffer *);
+extern cpp_buffer *cpp_get_prev (cpp_buffer *);
+
+/* In cpppch.c */
+struct save_macro_data;
+extern int cpp_save_state (cpp_reader *, FILE *);
+extern int cpp_write_pch_deps (cpp_reader *, FILE *);
+extern int cpp_write_pch_state (cpp_reader *, FILE *);
+extern int cpp_valid_state (cpp_reader *, const char *, int);
+extern void cpp_prepare_state (cpp_reader *, struct save_macro_data **);
+extern int cpp_read_state (cpp_reader *, const char *, FILE *,
+ struct save_macro_data *);
#ifdef __cplusplus
}
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