[thirdparty/gcc.git] / gcc / cpphash.h

/* Part of CPP library.
   Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.

This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/* This header defines all the internal data structures and functions
   that need to be visible across files.  It's called cpphash.h for
   historical reasons.  */

#ifndef __GCC_CPPHASH__
#define __GCC_CPPHASH__

/* Test if a sign is valid within a preprocessing number.  */
#define VALID_SIGN(c, prevc) \
  (((c) == '+' || (c) == '-') && \
   ((prevc) == 'e' || (prevc) == 'E' \
    || (((prevc) == 'p' || (prevc) == 'P') \
        && CPP_OPTION (pfile, extended_numbers))))

/* Memory pools.  */
#define ALIGN(size, align) (((size) + ((align) - 1)) & ~((align) - 1))
#define POOL_FRONT(p) ((p)->cur->front)
#define POOL_LIMIT(p) ((p)->cur->limit)
#define POOL_BASE(p)  ((p)->cur->base)
#define POOL_SIZE(p)  ((p)->cur->limit - (p)->cur->base)
#define POOL_ROOM(p)  ((p)->cur->limit - (p)->cur->front)
#define POOL_USED(p)  ((p)->cur->front - (p)->cur->base)
#define POOL_COMMIT(p, len) do {((p)->cur->front += ALIGN (len, (p)->align));\
  if ((p)->cur->front > (p)->cur->limit) abort ();} while (0)

typedef struct cpp_chunk cpp_chunk;
struct cpp_chunk
{
  cpp_chunk *next;
  unsigned char *front;
  unsigned char *limit;
  unsigned char *base;
};

/* List of directories to look for include files in. */
struct file_name_list
{
  struct file_name_list *next;
  struct file_name_list *alloc; /* for the cache of
				   current directory entries */
  char *name;
  unsigned int nlen;
  /* We use these to tell if the directory mentioned here is a duplicate
     of an earlier directory on the search path. */
  ino_t ino;
  dev_t dev;
  /* If the following is nonzero, it is a C-language system include
     directory.  */
  int sysp;
  /* Mapping of file names for this directory.
     Only used on MS-DOS and related platforms. */
  struct file_name_map *name_map;
};
#define ABSOLUTE_PATH ((struct file_name_list *)-1)

/* The cmacro works like this: If it's NULL, the file is to be
   included again.  If it's NEVER_REREAD, the file is never to be
   included again.  Otherwise it is a macro hashnode, and the file is
   to be included again if the macro is defined or not as specified by
   DEFINED.  */
#define NEVER_REREAD ((const cpp_hashnode *)-1)
#define DO_NOT_REREAD(inc) \
((inc)->cmacro && ((inc)->cmacro == NEVER_REREAD \
		   || ((inc)->cmacro->type == NT_MACRO) == (inc)->defined))

struct cpp_buffer
{
  const unsigned char *cur;	 /* current position */
  const unsigned char *rlimit; /* end of valid data */
  const unsigned char *line_base; /* start of current line */
  cppchar_t read_ahead;		/* read ahead character */
  cppchar_t extra_char;		/* extra read-ahead for long tokens.  */

  struct cpp_reader *pfile;	/* Owns this buffer.  */
  struct cpp_buffer *prev;

  const unsigned char *buf;	 /* entire buffer */

  /* Filename specified with #line command.  */
  const char *nominal_fname;

  /* Actual directory of this file, used only for "" includes */
  struct file_name_list *actual_dir;

  /* Pointer into the include table.  Used for include_next and
     to record control macros. */
  struct include_file *inc;

  /* Value of if_stack at start of this file.
     Used to prohibit unmatched #endif (etc) in an include file.  */
  struct if_stack *if_stack;

  /* Token column position adjustment owing to tabs in whitespace.  */
  unsigned int col_adjust;

  /* Line number at line_base (above). */
  unsigned int lineno;

  /* Because of the way the lexer works, -Wtrigraphs can sometimes
     warn twice for the same trigraph.  This helps prevent that.  */
  const unsigned char *last_Wtrigraphs;

  /* True if we have already warned about C++ comments in this file.
     The warning happens only for C89 extended mode with -pedantic on,
     or for -Wtraditional, and only once per file (otherwise it would
     be far too noisy).  */
  unsigned char warned_cplusplus_comments;

  /* True if we don't process trigraphs and escaped newlines.  True
     for preprocessed input, command line directives, and _Pragma
     buffers.  */
  unsigned char from_stage3;

  /* Temporary storage for pfile->skipping whilst in a directive.  */
  unsigned char was_skipping;

  /* 1 = system header file, 2 = C system header file used for C++.  */
  unsigned char sysp;
};

/* Character classes.  Based on the more primitive macros in safe-ctype.h.
   If the definition of `numchar' looks odd to you, please look up the
   definition of a pp-number in the C standard [section 6.4.8 of C99].

   In the unlikely event that characters other than \r and \n enter
   the set is_vspace, the macro handle_newline() in cpplex.c must be
   updated.  */
#define _dollar_ok(x)	((x) == '$' && CPP_OPTION (pfile, dollars_in_ident))

#define is_idchar(x)	(ISIDNUM(x) || _dollar_ok(x))
#define is_numchar(x)	ISIDNUM(x)
#define is_idstart(x)	(ISIDST(x) || _dollar_ok(x))
#define is_numstart(x)	ISDIGIT(x)
#define is_hspace(x)	ISBLANK(x)
#define is_vspace(x)	IS_VSPACE(x)
#define is_nvspace(x)	IS_NVSPACE(x)
#define is_space(x)	IS_SPACE_OR_NUL(x)

/* This table is constant if it can be initialized at compile time,
   which is the case if cpp was compiled with GCC >=2.7, or another
   compiler that supports C99.  */
#if HAVE_DESIGNATED_INITIALIZERS
extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1];
#else
extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1];
#endif

/* Macros.  */

#define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
#define CPP_PRINT_DEPS(PFILE) CPP_OPTION (PFILE, print_deps)
#define CPP_IN_SYSTEM_HEADER(PFILE) \
  (CPP_BUFFER (PFILE) && CPP_BUFFER (PFILE)->sysp)
#define CPP_PEDANTIC(PF) \
  CPP_OPTION (PF, pedantic)
#define CPP_WTRADITIONAL(PF) \
  CPP_OPTION (PF, warn_traditional)

/* Hash step.  The hash calculation is duplicated in cpp_lookup and
   parse_name.  */
#define HASHSTEP(r, c) ((r) * 67 + (c - 113));

/* In cpperror.c  */
enum error_type { WARNING = 0, PEDWARN, ERROR, FATAL, ICE };
extern int _cpp_begin_message PARAMS ((cpp_reader *, enum error_type,
				       const char *, const cpp_lexer_pos *));

/* In cppmacro.c */
extern void _cpp_free_definition	PARAMS ((cpp_hashnode *));
extern int _cpp_create_definition	PARAMS ((cpp_reader *, cpp_hashnode *));
extern void _cpp_pop_context		PARAMS ((cpp_reader *));
extern void _cpp_free_lookaheads	PARAMS ((cpp_reader *));
extern void _cpp_release_lookahead	PARAMS ((cpp_reader *));
extern void _cpp_push_token		PARAMS ((cpp_reader *, const cpp_token *,
						 const cpp_lexer_pos *));

/* In cpphash.c */
extern void _cpp_init_hashtable		PARAMS ((cpp_reader *));
extern void _cpp_cleanup_hashtable	PARAMS ((cpp_reader *));
extern cpp_hashnode *_cpp_lookup_with_hash PARAMS ((cpp_reader*, size_t,
						    unsigned int));

/* In cppfiles.c */
extern void _cpp_never_reread		PARAMS ((struct include_file *));
extern void _cpp_simplify_pathname	PARAMS ((char *));
extern int _cpp_read_file		PARAMS ((cpp_reader *, const char *));
extern void _cpp_execute_include	PARAMS ((cpp_reader *,
						 const cpp_token *, int, int));
extern int _cpp_compare_file_date       PARAMS ((cpp_reader *,
						 const cpp_token *));
extern void _cpp_report_missing_guards	PARAMS ((cpp_reader *));
extern void _cpp_init_includes		PARAMS ((cpp_reader *));
extern void _cpp_cleanup_includes	PARAMS ((cpp_reader *));
extern void _cpp_pop_file_buffer	PARAMS ((cpp_reader *, cpp_buffer *));

/* In cppexp.c */
extern int _cpp_parse_expr		PARAMS ((cpp_reader *));

/* In cpplex.c */
extern void _cpp_lex_token		PARAMS ((cpp_reader *, cpp_token *));
extern int _cpp_equiv_tokens		PARAMS ((const cpp_token *,
						 const cpp_token *));
extern void _cpp_init_pool		PARAMS ((cpp_pool *, unsigned int,
						  unsigned int, unsigned int));
extern void _cpp_free_pool		PARAMS ((cpp_pool *));
extern unsigned char *_cpp_pool_reserve PARAMS ((cpp_pool *, unsigned int));
extern unsigned char *_cpp_pool_alloc	PARAMS ((cpp_pool *, unsigned int));
extern unsigned char *_cpp_next_chunk	PARAMS ((cpp_pool *, unsigned int,
						 unsigned char **));
extern void _cpp_lock_pool		PARAMS ((cpp_pool *));
extern void _cpp_unlock_pool		PARAMS ((cpp_pool *));

/* In cpplib.c */
extern int _cpp_test_assertion PARAMS ((cpp_reader *, int *));
extern int _cpp_handle_directive PARAMS ((cpp_reader *, int));
extern void _cpp_define_builtin	PARAMS ((cpp_reader *, const char *));
extern void _cpp_do__Pragma	PARAMS ((cpp_reader *));
extern void _cpp_init_stacks	PARAMS ((cpp_reader *));
extern void _cpp_cleanup_stacks	PARAMS ((cpp_reader *));
extern void _cpp_init_internal_pragmas PARAMS ((cpp_reader *));
extern void _cpp_do_file_change PARAMS ((cpp_reader *, enum cpp_fc_reason,
					 const char *, unsigned int));

/* Utility routines and macros.  */
#define DSC(str) (const U_CHAR *)str, sizeof str - 1
#define xnew(T)		(T *) xmalloc (sizeof(T))
#define xcnew(T)	(T *) xcalloc (1, sizeof(T))
#define xnewvec(T, N)	(T *) xmalloc (sizeof(T) * (N))
#define xcnewvec(T, N)	(T *) xcalloc (N, sizeof(T))
#define xobnew(O, T)	(T *) obstack_alloc (O, sizeof(T))

#endif
Commit	Line	Data
88ae23e7 ZW	1	/* Part of CPP library.
88ae23e7 ZW	2	Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
4283012f JL	3
	4	This program is free software; you can redistribute it and/or modify it
	5	under the terms of the GNU General Public License as published by the
	6	Free Software Foundation; either version 2, or (at your option) any
	7	later version.
	8
	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
	13
	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, write to the Free Software
42b17236	16	Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
4283012f	17
88ae23e7 ZW	18	/* This header defines all the internal data structures and functions
	19	that need to be visible across files. It's called cpphash.h for
	20	historical reasons. */
	21
bb52fa7f ZW	22	#ifndef __GCC_CPPHASH__
	23	#define __GCC_CPPHASH__
	24
93c80368 NB	25	/* Test if a sign is valid within a preprocessing number. */
	26	#define VALID_SIGN(c, prevc) \
	27	(((c) == '+' \|\| (c) == '-') && \
	28	((prevc) == 'e' \|\| (prevc) == 'E' \
bdb05a7b NB	29	\|\| (((prevc) == 'p' \|\| (prevc) == 'P') \
bdb05a7b NB	30	&& CPP_OPTION (pfile, extended_numbers))))
93c80368 NB	31
	32	/* Memory pools. */
	33	#define ALIGN(size, align) (((size) + ((align) - 1)) & ~((align) - 1))
	34	#define POOL_FRONT(p) ((p)->cur->front)
	35	#define POOL_LIMIT(p) ((p)->cur->limit)
	36	#define POOL_BASE(p) ((p)->cur->base)
	37	#define POOL_SIZE(p) ((p)->cur->limit - (p)->cur->base)
	38	#define POOL_ROOM(p) ((p)->cur->limit - (p)->cur->front)
	39	#define POOL_USED(p) ((p)->cur->front - (p)->cur->base)
	40	#define POOL_COMMIT(p, len) do {((p)->cur->front += ALIGN (len, (p)->align));\
	41	if ((p)->cur->front > (p)->cur->limit) abort ();} while (0)
	42
	43	typedef struct cpp_chunk cpp_chunk;
	44	struct cpp_chunk
15dad1d9	45	{
93c80368 NB	46	cpp_chunk *next;
	47	unsigned char *front;
	48	unsigned char *limit;
	49	unsigned char *base;
15dad1d9 ZW	50	};
15dad1d9 ZW	51
88ae23e7 ZW	52	/* List of directories to look for include files in. */
	53	struct file_name_list
	54	{
	55	struct file_name_list *next;
	56	struct file_name_list alloc; / for the cache of
	57	current directory entries */
	58	char *name;
	59	unsigned int nlen;
	60	/* We use these to tell if the directory mentioned here is a duplicate
	61	of an earlier directory on the search path. */
	62	ino_t ino;
	63	dev_t dev;
	64	/* If the following is nonzero, it is a C-language system include
	65	directory. */
	66	int sysp;
	67	/* Mapping of file names for this directory.
	68	Only used on MS-DOS and related platforms. */
	69	struct file_name_map *name_map;
	70	};
	71	#define ABSOLUTE_PATH ((struct file_name_list *)-1)
	72
a58d32c2 ZW	73	/* The cmacro works like this: If it's NULL, the file is to be
	74	included again. If it's NEVER_REREAD, the file is never to be
	75	included again. Otherwise it is a macro hashnode, and the file is
93c80368 NB	76	to be included again if the macro is defined or not as specified by
93c80368 NB	77	DEFINED. */
a58d32c2 ZW	78	#define NEVER_REREAD ((const cpp_hashnode *)-1)
a58d32c2 ZW	79	#define DO_NOT_REREAD(inc) \
93c80368 NB	80	((inc)->cmacro && ((inc)->cmacro == NEVER_REREAD \
93c80368 NB	81	\|\| ((inc)->cmacro->type == NT_MACRO) == (inc)->defined))
bfb9dc7f	82
27e2564a NB	83	struct cpp_buffer
	84	{
	85	const unsigned char cur; / current position */
	86	const unsigned char rlimit; / end of valid data */
	87	const unsigned char line_base; / start of current line */
	88	cppchar_t read_ahead; /* read ahead character */
	89	cppchar_t extra_char; /* extra read-ahead for long tokens. */
	90
	91	struct cpp_reader pfile; / Owns this buffer. */
	92	struct cpp_buffer *prev;
	93
	94	const unsigned char buf; / entire buffer */
	95
	96	/* Filename specified with #line command. */
	97	const char *nominal_fname;
	98
	99	/* Actual directory of this file, used only for "" includes */
	100	struct file_name_list *actual_dir;
	101
	102	/* Pointer into the include table. Used for include_next and
	103	to record control macros. */
	104	struct include_file *inc;
	105
	106	/* Value of if_stack at start of this file.
	107	Used to prohibit unmatched #endif (etc) in an include file. */
	108	struct if_stack *if_stack;
	109
	110	/* Token column position adjustment owing to tabs in whitespace. */
	111	unsigned int col_adjust;
	112
	113	/* Line number at line_base (above). */
	114	unsigned int lineno;
	115
	116	/* Because of the way the lexer works, -Wtrigraphs can sometimes
	117	warn twice for the same trigraph. This helps prevent that. */
	118	const unsigned char *last_Wtrigraphs;
	119
	120	/* True if we have already warned about C++ comments in this file.
	121	The warning happens only for C89 extended mode with -pedantic on,
	122	or for -Wtraditional, and only once per file (otherwise it would
	123	be far too noisy). */
	124	unsigned char warned_cplusplus_comments;
	125
	126	/* True if we don't process trigraphs and escaped newlines. True
	127	for preprocessed input, command line directives, and _Pragma
	128	buffers. */
	129	unsigned char from_stage3;
	130
	131	/* Temporary storage for pfile->skipping whilst in a directive. */
	132	unsigned char was_skipping;
642ce434 NB	133
	134	/* 1 = system header file, 2 = C system header file used for C++. */
	135	unsigned char sysp;
27e2564a NB	136	};
27e2564a NB	137
f6bbde28	138	/* Character classes. Based on the more primitive macros in safe-ctype.h.
88ae23e7	139	If the definition of `numchar' looks odd to you, please look up the
91fcd158 NB	140	definition of a pp-number in the C standard [section 6.4.8 of C99].
	141
	142	In the unlikely event that characters other than \r and \n enter
	143	the set is_vspace, the macro handle_newline() in cpplex.c must be
	144	updated. */
ae79697b	145	#define _dollar_ok(x) ((x) == '$' && CPP_OPTION (pfile, dollars_in_ident))
88ae23e7	146
f6bbde28 ZW	147	#define is_idchar(x) (ISIDNUM(x) \|\| _dollar_ok(x))
	148	#define is_numchar(x) ISIDNUM(x)
	149	#define is_idstart(x) (ISIDST(x) \|\| _dollar_ok(x))
	150	#define is_numstart(x) ISDIGIT(x)
	151	#define is_hspace(x) ISBLANK(x)
	152	#define is_vspace(x) IS_VSPACE(x)
	153	#define is_nvspace(x) IS_NVSPACE(x)
	154	#define is_space(x) IS_SPACE_OR_NUL(x)
88ae23e7	155
f6bbde28	156	/* This table is constant if it can be initialized at compile time,
88ae23e7 ZW	157	which is the case if cpp was compiled with GCC >=2.7, or another
88ae23e7 ZW	158	compiler that supports C99. */
61d0346d	159	#if HAVE_DESIGNATED_INITIALIZERS
61d0346d	160	extern const unsigned char _cpp_trigraph_map[UCHAR_MAX + 1];
88ae23e7	161	#else
61d0346d	162	extern unsigned char _cpp_trigraph_map[UCHAR_MAX + 1];
88ae23e7 ZW	163	#endif
	164
	165	/* Macros. */
	166
88ae23e7	167	#define CPP_PREV_BUFFER(BUFFER) ((BUFFER)->prev)
ae79697b	168	#define CPP_PRINT_DEPS(PFILE) CPP_OPTION (PFILE, print_deps)
bfb9dc7f	169	#define CPP_IN_SYSTEM_HEADER(PFILE) \
642ce434	170	(CPP_BUFFER (PFILE) && CPP_BUFFER (PFILE)->sysp)
c31a6508	171	#define CPP_PEDANTIC(PF) \
317639a8	172	CPP_OPTION (PF, pedantic)
07aa0b04	173	#define CPP_WTRADITIONAL(PF) \
317639a8	174	CPP_OPTION (PF, warn_traditional)
88ae23e7	175
711b8824 ZW	176	/* Hash step. The hash calculation is duplicated in cpp_lookup and
711b8824 ZW	177	parse_name. */
0d9f234d	178	#define HASHSTEP(r, c) ((r) * 67 + (c - 113));
711b8824	179
58fea6af ZW	180	/* In cpperror.c */
	181	enum error_type { WARNING = 0, PEDWARN, ERROR, FATAL, ICE };
	182	extern int _cpp_begin_message PARAMS ((cpp_reader *, enum error_type,
93c80368	183	const char , const cpp_lexer_pos ));
58fea6af	184
711b8824	185	/* In cppmacro.c */
f8f769ea	186	extern void _cpp_free_definition PARAMS ((cpp_hashnode *));
041c3194	187	extern int _cpp_create_definition PARAMS ((cpp_reader , cpp_hashnode ));
93c80368	188	extern void _cpp_pop_context PARAMS ((cpp_reader *));
93c80368	189	extern void _cpp_free_lookaheads PARAMS ((cpp_reader *));
b528a07e	190	extern void _cpp_release_lookahead PARAMS ((cpp_reader *));
93c80368 NB	191	extern void _cpp_push_token PARAMS ((cpp_reader , const cpp_token ,
93c80368 NB	192	const cpp_lexer_pos *));
711b8824 ZW	193
711b8824 ZW	194	/* In cpphash.c */
93c80368 NB	195	extern void _cpp_init_hashtable PARAMS ((cpp_reader *));
	196	extern void _cpp_cleanup_hashtable PARAMS ((cpp_reader *));
	197	extern cpp_hashnode _cpp_lookup_with_hash PARAMS ((cpp_reader, size_t,
	198	unsigned int));
bb52fa7f	199
88ae23e7	200	/* In cppfiles.c */
642ce434	201	extern void _cpp_never_reread PARAMS ((struct include_file *));
88ae23e7	202	extern void _cpp_simplify_pathname PARAMS ((char *));
614c7d37	203	extern int _cpp_read_file PARAMS ((cpp_reader , const char ));
93c80368	204	extern void _cpp_execute_include PARAMS ((cpp_reader *,
642ce434	205	const cpp_token *, int, int));
93c80368 NB	206	extern int _cpp_compare_file_date PARAMS ((cpp_reader *,
93c80368 NB	207	const cpp_token *));
c71f835b ZW	208	extern void _cpp_report_missing_guards PARAMS ((cpp_reader *));
	209	extern void _cpp_init_includes PARAMS ((cpp_reader *));
	210	extern void _cpp_cleanup_includes PARAMS ((cpp_reader *));
f9a0e96c	211	extern void _cpp_pop_file_buffer PARAMS ((cpp_reader , cpp_buffer ));
88ae23e7 ZW	212
	213	/* In cppexp.c */
	214	extern int _cpp_parse_expr PARAMS ((cpp_reader *));
	215
45b966db	216	/* In cpplex.c */
93c80368	217	extern void _cpp_lex_token PARAMS ((cpp_reader , cpp_token ));
15dad1d9 ZW	218	extern int _cpp_equiv_tokens PARAMS ((const cpp_token *,
15dad1d9 ZW	219	const cpp_token *));
93c80368 NB	220	extern void _cpp_init_pool PARAMS ((cpp_pool *, unsigned int,
	221	unsigned int, unsigned int));
	222	extern void _cpp_free_pool PARAMS ((cpp_pool *));
	223	extern unsigned char _cpp_pool_reserve PARAMS ((cpp_pool , unsigned int));
	224	extern unsigned char _cpp_pool_alloc PARAMS ((cpp_pool , unsigned int));
	225	extern unsigned char _cpp_next_chunk PARAMS ((cpp_pool , unsigned int,
	226	unsigned char **));
	227	extern void _cpp_lock_pool PARAMS ((cpp_pool *));
	228	extern void _cpp_unlock_pool PARAMS ((cpp_pool *));
45b966db ZW	229
45b966db ZW	230	/* In cpplib.c */
93c80368 NB	231	extern int _cpp_test_assertion PARAMS ((cpp_reader , int ));
	232	extern int _cpp_handle_directive PARAMS ((cpp_reader *, int));
	233	extern void _cpp_define_builtin PARAMS ((cpp_reader , const char ));
a5c3cccd	234	extern void _cpp_do__Pragma PARAMS ((cpp_reader *));
c71f835b ZW	235	extern void _cpp_init_stacks PARAMS ((cpp_reader *));
c71f835b ZW	236	extern void _cpp_cleanup_stacks PARAMS ((cpp_reader *));
58fea6af	237	extern void _cpp_init_internal_pragmas PARAMS ((cpp_reader *));
27e2564a NB	238	extern void _cpp_do_file_change PARAMS ((cpp_reader *, enum cpp_fc_reason,
27e2564a NB	239	const char *, unsigned int));
12cf91fe	240
c31a6508	241	/* Utility routines and macros. */
93c80368	242	#define DSC(str) (const U_CHAR *)str, sizeof str - 1
c31a6508	243	#define xnew(T) (T *) xmalloc (sizeof(T))
a58d32c2	244	#define xcnew(T) (T *) xcalloc (1, sizeof(T))
c31a6508	245	#define xnewvec(T, N) (T ) xmalloc (sizeof(T) (N))
711b8824	246	#define xcnewvec(T, N) (T *) xcalloc (N, sizeof(T))
c71f835b	247	#define xobnew(O, T) (T *) obstack_alloc (O, sizeof(T))
c31a6508	248
bb52fa7f	249	#endif