[binutils.git] / gdb / language.h

/* Source-language-related definitions for GDB.
   Copyright 1991, 1992 Free Software Foundation, Inc.
   Contributed by the Department of Computer Science at the State University
   of New York at Buffalo.

This file is part of GDB.

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 of the License, 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, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#if !defined (LANGUAGE_H)
#define LANGUAGE_H 1

#ifdef __STDC__		/* Forward decls for prototypes */
struct value;
struct objfile;
/* enum exp_opcode;	ANSI's `wisdom' didn't include forward enum decls. */
#endif

/* This used to be included to configure GDB for one or more specific
   languages.  Now it is shortcutted to configure for all of them.  FIXME.  */
/* #include "lang_def.h" */
#define	_LANG_c
#define	_LANG_m2
#define	_LANG_chill

/* range_mode ==
   range_mode_auto:   range_check set automatically to default of language.
   range_mode_manual: range_check set manually by user.  */

extern enum range_mode {range_mode_auto, range_mode_manual} range_mode;

/* range_check ==
   range_check_on:    Ranges are checked in GDB expressions, producing errors.
   range_check_warn:  Ranges are checked, producing warnings.
   range_check_off:   Ranges are not checked in GDB expressions.  */

extern enum range_check
  {range_check_off, range_check_warn, range_check_on} range_check;

/* type_mode ==
   type_mode_auto:   type_check set automatically to default of language
   type_mode_manual: type_check set manually by user. */

extern enum type_mode {type_mode_auto, type_mode_manual} type_mode;

/* type_check ==
   type_check_on:    Types are checked in GDB expressions, producing errors.
   type_check_warn:  Types are checked, producing warnings.
   type_check_off:   Types are not checked in GDB expressions.  */

extern enum type_check
  {type_check_off, type_check_warn, type_check_on} type_check;
\f
/* Information for doing language dependent formatting of printed values. */

struct language_format_info
{
  /* The format that can be passed directly to standard C printf functions
     to generate a completely formatted value in the format appropriate for
     the language. */

  char *la_format;

  /* The prefix to be used when directly printing a value, or constructing
     a standard C printf format.  This generally is everything up to the
     conversion specification (the part introduced by the '%' character
     and terminated by the conversion specifier character). */

  char *la_format_prefix;

  /* The conversion specifier.  This is generally everything after the
     field width and precision, typically only a single character such
     as 'o' for octal format or 'x' for hexadecimal format. */

  char *la_format_specifier;

  /* The suffix to be used when directly printing a value, or constructing
     a standard C printf format.  This generally is everything after the
     conversion specification (the part introduced by the '%' character
     and terminated by the conversion specifier character). */

  char *la_format_suffix;		/* Suffix for custom format string */
};

/* Structure tying together assorted information about a language.  */

struct language_defn
{
  /* Name of the language */
  
  char *la_name;

  /* its symtab language-enum (defs.h) */

  enum language la_language;

  /* Its builtin types */

  struct type ** const *la_builtin_type_vector;

  /* Default range checking */

  enum range_check la_range_check;

  /* Default type checking */

  enum type_check la_type_check;

  /* Parser function. */
  
  int (*la_parser) PARAMS((void));

  /* Parser error function */

  void (*la_error) PARAMS ((char *));

  void (*la_printchar) PARAMS ((int, GDB_FILE *));

  void (*la_printstr) PARAMS ((GDB_FILE *, char *, unsigned int, int));

  struct type *(*la_fund_type) PARAMS ((struct objfile *, int));

  /* Print a type using syntax appropriate for this language. */

  void (*la_print_type) PARAMS ((struct type *, char *, GDB_FILE *, int, int));

  /* Print a value using syntax appropriate for this language. */

  int (*la_val_print) PARAMS ((struct type *, char *,  CORE_ADDR, GDB_FILE *,
			       int, int, int, enum val_prettyprint));

  /* Longest signed integral type */

  struct type **la_longest_int;

  /* Longest unsigned integral type */

  struct type **la_longest_unsigned_int;

  /* Longest floating point type */

  struct type **la_longest_float;

  /* Base 2 (binary) formats. */

  struct language_format_info la_binary_format;

  /* Base 8 (octal) formats. */

  struct language_format_info la_octal_format;

  /* Base 10 (decimal) formats */

  struct language_format_info la_decimal_format;

  /* Base 16 (hexadecimal) formats */

  struct language_format_info la_hex_format;


  /* Table for printing expressions */

  const struct op_print *la_op_print_tab;

  /* Add fields above this point, so the magic number is always last. */
  /* Magic number for compat checking */

  long la_magic;

};

#define LANG_MAGIC	910823L

/* Pointer to the language_defn for our current language.  This pointer
   always points to *some* valid struct; it can be used without checking
   it for validity.

   The current language affects expression parsing and evaluation
   (FIXME: it might be cleaner to make the evaluation-related stuff
   separate exp_opcodes for each different set of semantics.  We
   should at least think this through more clearly with respect to
   what happens if the language is changed between parsing and
   evaluation) and printing of things like types and arrays.  It does
   *not* affect symbol-reading-- each source file in a symbol-file has
   its own language and we should keep track of that regardless of the
   language when symbols are read.  If we want some manual setting for
   the language of symbol files (e.g. detecting when ".c" files are
   C++), it should be a seprate setting from the current_language.  */

extern const struct language_defn *current_language;

/* Pointer to the language_defn expected by the user, e.g. the language
   of main(), or the language we last mentioned in a message, or C.  */

extern const struct language_defn *expected_language;

/* language_mode == 
   language_mode_auto:   current_language automatically set upon selection
			 of scope (e.g. stack frame)
   language_mode_manual: current_language set only by user.  */

extern enum language_mode
  {language_mode_auto, language_mode_manual} language_mode;
\f
/* These macros define the behaviour of the expression 
   evaluator.  */

/* Should we strictly type check expressions? */
#define STRICT_TYPE (type_check != type_check_off)

/* Should we range check values against the domain of their type? */
#define RANGE_CHECK (range_check != range_check_off)

/* "cast" really means conversion */
/* FIXME -- should be a setting in language_defn */
#define CAST_IS_CONVERSION (current_language->la_language == language_c  || \
			    current_language->la_language == language_cplus)

extern void
language_info PARAMS ((int));

extern void
set_language PARAMS ((enum language));

\f
/* This page contains functions that return things that are
   specific to languages.  Each of these functions is based on
   the current setting of working_lang, which the user sets
   with the "set language" command. */

/* Returns some built-in types */
#define	longest_int()		(*current_language->la_longest_int)
#define	longest_unsigned_int()	(*current_language->la_longest_unsigned_int)
#define	longest_float()		(*current_language->la_longest_float)

#define create_fundamental_type(objfile,typeid) \
  (current_language->la_fund_type(objfile, typeid))

#define LA_PRINT_TYPE(type,varstring,stream,show,level) \
  (current_language->la_print_type(type,varstring,stream,show,level))

#define LA_VAL_PRINT(type,valaddr,addr,stream,fmt,deref,recurse,pretty) \
  (current_language->la_val_print(type,valaddr,addr,stream,fmt,deref, \
				  recurse,pretty))

/* Return a format string for printf that will print a number in one of
   the local (language-specific) formats.  Result is static and is
   overwritten by the next call.  Takes printf options like "08" or "l"
   (to produce e.g. %08x or %lx).  */

#define local_binary_format() \
  (current_language->la_binary_format.la_format)
#define local_binary_format_prefix() \
  (current_language->la_binary_format.la_format_prefix)
#define local_binary_format_specifier() \
  (current_language->la_binary_format.la_format_specifier)
#define local_binary_format_suffix() \
  (current_language->la_binary_format.la_format_suffix)

#define local_octal_format() \
  (current_language->la_octal_format.la_format)
#define local_octal_format_prefix() \
  (current_language->la_octal_format.la_format_prefix)
#define local_octal_format_specifier() \
  (current_language->la_octal_format.la_format_specifier)
#define local_octal_format_suffix() \
  (current_language->la_octal_format.la_format_suffix)

#define local_decimal_format() \
  (current_language->la_decimal_format.la_format)
#define local_decimal_format_prefix() \
  (current_language->la_decimal_format.la_format_prefix)
#define local_decimal_format_specifier() \
  (current_language->la_decimal_format.la_format_specifier)
#define local_decimal_format_suffix() \
  (current_language->la_decimal_format.la_format_suffix)

#define local_hex_format() \
  (current_language->la_hex_format.la_format)
#define local_hex_format_prefix() \
  (current_language->la_hex_format.la_format_prefix)
#define local_hex_format_specifier() \
  (current_language->la_hex_format.la_format_specifier)
#define local_hex_format_suffix() \
  (current_language->la_hex_format.la_format_suffix)

#define LA_PRINT_CHAR(ch, stream) \
  (current_language->la_printchar(ch, stream))
#define LA_PRINT_STRING(stream, string, length, force_ellipses) \
  (current_language->la_printstr(stream, string, length, force_ellipses))

/* Test a character to decide whether it can be printed in literal form
   or needs to be printed in another representation.  For example,
   in C the literal form of the character with octal value 141 is 'a'
   and the "other representation" is '\141'.  The "other representation"
   is program language dependent. */

#define PRINT_LITERAL_FORM(c) \
  ((c)>=0x20 && ((c)<0x7F || (c)>=0xA0) && (!sevenbit_strings || (c)<0x80))

/* Return a format string for printf that will print a number in one of
   the local (language-specific) formats.  Result is static and is
   overwritten by the next call.  Takes printf options like "08" or "l"
   (to produce e.g. %08x or %lx).  */

extern char *
local_decimal_format_custom PARAMS ((char *));	/* language.c */

extern char *
local_octal_format_custom PARAMS ((char *));	/* language.c */

extern char *
local_hex_format_custom PARAMS ((char *));	/* language.c */

/* Return a string that contains a number formatted in one of the local
   (language-specific) formats.  Result is static and is overwritten by
   the next call.  Takes printf options like "08" or "l".  */

extern char *
local_hex_string PARAMS ((unsigned long));		/* language.c */

extern char *
local_hex_string_custom PARAMS ((unsigned long, char *)); /* language.c */

/* Type predicates */

extern int
simple_type PARAMS ((struct type *));

extern int
ordered_type PARAMS ((struct type *));

extern int
same_type PARAMS ((struct type *, struct type *));

extern int
integral_type PARAMS ((struct type *));

extern int
numeric_type PARAMS ((struct type *));

extern int
character_type PARAMS ((struct type *));

extern int
boolean_type PARAMS ((struct type *));

extern int
float_type PARAMS ((struct type *));

extern int
pointer_type PARAMS ((struct type *));

extern int
structured_type PARAMS ((struct type *));

/* Checks Binary and Unary operations for semantic type correctness */
/* FIXME:  Does not appear to be used */
#define unop_type_check(v,o) binop_type_check((v),NULL,(o))

extern void
binop_type_check PARAMS ((struct value *, struct value *, int));

/* Error messages */

extern void
op_error PARAMS ((char *fmt, enum exp_opcode, int));

#define type_op_error(f,o) \
   op_error((f),(o),type_check==type_check_on ? 1 : 0)
#define range_op_error(f,o) \
   op_error((f),(o),range_check==range_check_on ? 1 : 0)

extern void
type_error ();

void
range_error ();

/* Data:  Does this value represent "truth" to the current language?  */

extern int
value_true PARAMS ((struct value *));

/* Misc:  The string representing a particular enum language.  */

extern const struct language_defn *
language_def PARAMS ((enum language));

extern char *
language_str PARAMS ((enum language));

/* Add a language to the set known by GDB (at initialization time).  */

extern void
add_language PARAMS ((const struct language_defn *));

extern enum language
get_frame_language PARAMS ((void));		/* In stack.c */

#endif	/* defined (LANGUAGE_H) */
Commit	Line	Data
c8023e66	1	/* Source-language-related definitions for GDB.
75af490b	2	Copyright 1991, 1992 Free Software Foundation, Inc.
c8023e66 JG	3	Contributed by the Department of Computer Science at the State University
	4	of New York at Buffalo.
	5
	6	This file is part of GDB.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 2 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	21
75af490b JG	22	#if !defined (LANGUAGE_H)
	23	#define LANGUAGE_H 1
	24
f9e3b3cc	25	#ifdef __STDC__ /* Forward decls for prototypes */
75af490b	26	struct value;
22e39759	27	struct objfile;
f9e3b3cc	28	/* enum exp_opcode; ANSI's `wisdom' didn't include forward enum decls. */
75af490b JG	29	#endif
75af490b JG	30
c8023e66 JG	31	/* This used to be included to configure GDB for one or more specific
	32	languages. Now it is shortcutted to configure for all of them. FIXME. */
	33	/* #include "lang_def.h" */
	34	#define _LANG_c
	35	#define _LANG_m2
e58de8a2	36	#define _LANG_chill
c8023e66 JG	37
	38	/* range_mode ==
	39	range_mode_auto: range_check set automatically to default of language.
	40	range_mode_manual: range_check set manually by user. */
	41
	42	extern enum range_mode {range_mode_auto, range_mode_manual} range_mode;
	43
	44	/* range_check ==
	45	range_check_on: Ranges are checked in GDB expressions, producing errors.
	46	range_check_warn: Ranges are checked, producing warnings.
	47	range_check_off: Ranges are not checked in GDB expressions. */
	48
	49	extern enum range_check
	50	{range_check_off, range_check_warn, range_check_on} range_check;
	51
	52	/* type_mode ==
	53	type_mode_auto: type_check set automatically to default of language
	54	type_mode_manual: type_check set manually by user. */
	55
	56	extern enum type_mode {type_mode_auto, type_mode_manual} type_mode;
	57
	58	/* type_check ==
	59	type_check_on: Types are checked in GDB expressions, producing errors.
	60	type_check_warn: Types are checked, producing warnings.
	61	type_check_off: Types are not checked in GDB expressions. */
	62
	63	extern enum type_check
	64	{type_check_off, type_check_warn, type_check_on} type_check;
	65	\f
2e66cf7d FF	66	/* Information for doing language dependent formatting of printed values. */
	67
	68	struct language_format_info
	69	{
	70	/* The format that can be passed directly to standard C printf functions
	71	to generate a completely formatted value in the format appropriate for
	72	the language. */
	73
	74	char *la_format;
	75
	76	/* The prefix to be used when directly printing a value, or constructing
	77	a standard C printf format. This generally is everything up to the
	78	conversion specification (the part introduced by the '%' character
	79	and terminated by the conversion specifier character). */
	80
	81	char *la_format_prefix;
	82
	83	/* The conversion specifier. This is generally everything after the
	84	field width and precision, typically only a single character such
	85	as 'o' for octal format or 'x' for hexadecimal format. */
	86
	87	char *la_format_specifier;
	88
	89	/* The suffix to be used when directly printing a value, or constructing
	90	a standard C printf format. This generally is everything after the
	91	conversion specification (the part introduced by the '%' character
	92	and terminated by the conversion specifier character). */
	93
	94	char la_format_suffix; / Suffix for custom format string */
	95	};
	96
c8023e66 JG	97	/* Structure tying together assorted information about a language. */
c8023e66 JG	98
a8a69e63 FF	99	struct language_defn
	100	{
	101	/* Name of the language */
	102
	103	char *la_name;
	104
	105	/* its symtab language-enum (defs.h) */
	106
	107	enum language la_language;
	108
	109	/* Its builtin types */
	110
	111	struct type ** const *la_builtin_type_vector;
	112
	113	/* Default range checking */
	114
	115	enum range_check la_range_check;
	116
	117	/* Default type checking */
	118
	119	enum type_check la_type_check;
	120
	121	/* Parser function. */
	122
	123	int (*la_parser) PARAMS((void));
	124
	125	/* Parser error function */
	126
	127	void (la_error) PARAMS ((char ));
	128
199b2450	129	void (la_printchar) PARAMS ((int, GDB_FILE ));
a8a69e63	130
199b2450	131	void (la_printstr) PARAMS ((GDB_FILE , char *, unsigned int, int));
a8a69e63 FF	132
	133	struct type (la_fund_type) PARAMS ((struct objfile *, int));
	134
	135	/* Print a type using syntax appropriate for this language. */
	136
199b2450	137	void (la_print_type) PARAMS ((struct type , char , GDB_FILE , int, int));
a8a69e63 FF	138
	139	/* Print a value using syntax appropriate for this language. */
	140
199b2450	141	int (la_val_print) PARAMS ((struct type , char , CORE_ADDR, GDB_FILE ,
a8a69e63 FF	142	int, int, int, enum val_prettyprint));
	143
	144	/* Longest signed integral type */
	145
	146	struct type **la_longest_int;
	147
	148	/* Longest unsigned integral type */
	149
	150	struct type **la_longest_unsigned_int;
	151
	152	/* Longest floating point type */
	153
	154	struct type **la_longest_float;
	155
	156	/* Base 2 (binary) formats. */
	157
	158	struct language_format_info la_binary_format;
	159
	160	/* Base 8 (octal) formats. */
	161
	162	struct language_format_info la_octal_format;
	163
	164	/* Base 10 (decimal) formats */
	165
	166	struct language_format_info la_decimal_format;
	167
	168	/* Base 16 (hexadecimal) formats */
	169
	170	struct language_format_info la_hex_format;
	171
	172
	173	/* Table for printing expressions */
	174
	175	const struct op_print *la_op_print_tab;
	176
	177	/* Add fields above this point, so the magic number is always last. */
	178	/* Magic number for compat checking */
	179
	180	long la_magic;
	181
c8023e66 JG	182	};
	183
	184	#define LANG_MAGIC 910823L
	185
	186	/* Pointer to the language_defn for our current language. This pointer
	187	always points to some valid struct; it can be used without checking
a3178c64 JK	188	it for validity.
	189
	190	The current language affects expression parsing and evaluation
	191	(FIXME: it might be cleaner to make the evaluation-related stuff
	192	separate exp_opcodes for each different set of semantics. We
	193	should at least think this through more clearly with respect to
	194	what happens if the language is changed between parsing and
	195	evaluation) and printing of things like types and arrays. It does
	196	not affect symbol-reading-- each source file in a symbol-file has
	197	its own language and we should keep track of that regardless of the
	198	language when symbols are read. If we want some manual setting for
	199	the language of symbol files (e.g. detecting when ".c" files are
	200	C++), it should be a seprate setting from the current_language. */
c8023e66	201
0c6efbcc	202	extern const struct language_defn *current_language;
c8023e66	203
b5af69c3 JG	204	/* Pointer to the language_defn expected by the user, e.g. the language
	205	of main(), or the language we last mentioned in a message, or C. */
	206
	207	extern const struct language_defn *expected_language;
	208
c8023e66 JG	209	/* language_mode ==
	210	language_mode_auto: current_language automatically set upon selection
	211	of scope (e.g. stack frame)
	212	language_mode_manual: current_language set only by user. */
	213
	214	extern enum language_mode
	215	{language_mode_auto, language_mode_manual} language_mode;
	216	\f
	217	/* These macros define the behaviour of the expression
	218	evaluator. */
	219
	220	/* Should we strictly type check expressions? */
1a5a8f2a	221	#define STRICT_TYPE (type_check != type_check_off)
c8023e66 JG	222
c8023e66 JG	223	/* Should we range check values against the domain of their type? */
1a5a8f2a	224	#define RANGE_CHECK (range_check != range_check_off)
c8023e66 JG	225
	226	/* "cast" really means conversion */
	227	/* FIXME -- should be a setting in language_defn */
f77ad505 FF	228	#define CAST_IS_CONVERSION (current_language->la_language == language_c \|\| \
f77ad505 FF	229	current_language->la_language == language_cplus)
c8023e66	230
75af490b JG	231	extern void
	232	language_info PARAMS ((int));
	233
	234	extern void
	235	set_language PARAMS ((enum language));
	236
c8023e66 JG	237	\f
	238	/* This page contains functions that return things that are
	239	specific to languages. Each of these functions is based on
	240	the current setting of working_lang, which the user sets
	241	with the "set language" command. */
	242
	243	/* Returns some built-in types */
	244	#define longest_int() (*current_language->la_longest_int)
	245	#define longest_unsigned_int() (*current_language->la_longest_unsigned_int)
	246	#define longest_float() (*current_language->la_longest_float)
c8023e66	247
bf229b4e FF	248	#define create_fundamental_type(objfile,typeid) \
	249	(current_language->la_fund_type(objfile, typeid))
	250
a8a69e63 FF	251	#define LA_PRINT_TYPE(type,varstring,stream,show,level) \
	252	(current_language->la_print_type(type,varstring,stream,show,level))
	253
	254	#define LA_VAL_PRINT(type,valaddr,addr,stream,fmt,deref,recurse,pretty) \
	255	(current_language->la_val_print(type,valaddr,addr,stream,fmt,deref, \
	256	recurse,pretty))
	257
2e66cf7d FF	258	/* Return a format string for printf that will print a number in one of
	259	the local (language-specific) formats. Result is static and is
	260	overwritten by the next call. Takes printf options like "08" or "l"
	261	(to produce e.g. %08x or %lx). */
	262
	263	#define local_binary_format() \
	264	(current_language->la_binary_format.la_format)
	265	#define local_binary_format_prefix() \
	266	(current_language->la_binary_format.la_format_prefix)
	267	#define local_binary_format_specifier() \
	268	(current_language->la_binary_format.la_format_specifier)
	269	#define local_binary_format_suffix() \
	270	(current_language->la_binary_format.la_format_suffix)
	271
	272	#define local_octal_format() \
	273	(current_language->la_octal_format.la_format)
	274	#define local_octal_format_prefix() \
	275	(current_language->la_octal_format.la_format_prefix)
	276	#define local_octal_format_specifier() \
	277	(current_language->la_octal_format.la_format_specifier)
	278	#define local_octal_format_suffix() \
	279	(current_language->la_octal_format.la_format_suffix)
	280
	281	#define local_decimal_format() \
	282	(current_language->la_decimal_format.la_format)
	283	#define local_decimal_format_prefix() \
	284	(current_language->la_decimal_format.la_format_prefix)
	285	#define local_decimal_format_specifier() \
	286	(current_language->la_decimal_format.la_format_specifier)
	287	#define local_decimal_format_suffix() \
	288	(current_language->la_decimal_format.la_format_suffix)
	289
	290	#define local_hex_format() \
	291	(current_language->la_hex_format.la_format)
	292	#define local_hex_format_prefix() \
	293	(current_language->la_hex_format.la_format_prefix)
	294	#define local_hex_format_specifier() \
	295	(current_language->la_hex_format.la_format_specifier)
	296	#define local_hex_format_suffix() \
	297	(current_language->la_hex_format.la_format_suffix)
	298
a8a69e63	299	#define LA_PRINT_CHAR(ch, stream) \
5d074aa9	300	(current_language->la_printchar(ch, stream))
a8a69e63	301	#define LA_PRINT_STRING(stream, string, length, force_ellipses) \
5d074aa9 FF	302	(current_language->la_printstr(stream, string, length, force_ellipses))
5d074aa9 FF	303
5707ea9f FF	304	/* Test a character to decide whether it can be printed in literal form
	305	or needs to be printed in another representation. For example,
	306	in C the literal form of the character with octal value 141 is 'a'
	307	and the "other representation" is '\141'. The "other representation"
	308	is program language dependent. */
	309
	310	#define PRINT_LITERAL_FORM(c) \
	311	((c)>=0x20 && ((c)<0x7F \|\| (c)>=0xA0) && (!sevenbit_strings \|\| (c)<0x80))
	312
2e66cf7d FF	313	/* Return a format string for printf that will print a number in one of
	314	the local (language-specific) formats. Result is static and is
	315	overwritten by the next call. Takes printf options like "08" or "l"
	316	(to produce e.g. %08x or %lx). */
c8023e66	317
58a66e24 FF	318	extern char *
	319	local_decimal_format_custom PARAMS ((char )); / language.c */
	320
2e66cf7d FF	321	extern char *
	322	local_octal_format_custom PARAMS ((char )); / language.c */
	323
	324	extern char *
	325	local_hex_format_custom PARAMS ((char )); / language.c */
c8023e66	326
2e66cf7d FF	327	/* Return a string that contains a number formatted in one of the local
	328	(language-specific) formats. Result is static and is overwritten by
	329	the next call. Takes printf options like "08" or "l". */
	330
	331	extern char *
5573d7d4	332	local_hex_string PARAMS ((unsigned long)); /* language.c */
2e66cf7d FF	333
2e66cf7d FF	334	extern char *
5573d7d4	335	local_hex_string_custom PARAMS ((unsigned long, char )); / language.c */
c8023e66 JG	336
c8023e66 JG	337	/* Type predicates */
75af490b JG	338
	339	extern int
	340	simple_type PARAMS ((struct type *));
	341
	342	extern int
	343	ordered_type PARAMS ((struct type *));
	344
	345	extern int
	346	same_type PARAMS ((struct type , struct type ));
	347
	348	extern int
	349	integral_type PARAMS ((struct type *));
	350
	351	extern int
	352	numeric_type PARAMS ((struct type *));
	353
	354	extern int
	355	character_type PARAMS ((struct type *));
	356
	357	extern int
	358	boolean_type PARAMS ((struct type *));
	359
	360	extern int
	361	float_type PARAMS ((struct type *));
	362
	363	extern int
	364	pointer_type PARAMS ((struct type *));
	365
	366	extern int
	367	structured_type PARAMS ((struct type *));
c8023e66 JG	368
c8023e66 JG	369	/* Checks Binary and Unary operations for semantic type correctness */
75af490b	370	/* FIXME: Does not appear to be used */
c8023e66 JG	371	#define unop_type_check(v,o) binop_type_check((v),NULL,(o))
c8023e66 JG	372
75af490b JG	373	extern void
	374	binop_type_check PARAMS ((struct value , struct value , int));
	375
c8023e66	376	/* Error messages */
75af490b JG	377
	378	extern void
	379	op_error PARAMS ((char *fmt, enum exp_opcode, int));
	380
c8023e66 JG	381	#define type_op_error(f,o) \
	382	op_error((f),(o),type_check==type_check_on ? 1 : 0)
	383	#define range_op_error(f,o) \
	384	op_error((f),(o),range_check==range_check_on ? 1 : 0)
75af490b JG	385
	386	extern void
	387	type_error ();
	388
	389	void
	390	range_error ();
c8023e66 JG	391
c8023e66 JG	392	/* Data: Does this value represent "truth" to the current language? */
75af490b JG	393
	394	extern int
	395	value_true PARAMS ((struct value *));
c8023e66 JG	396
c8023e66 JG	397	/* Misc: The string representing a particular enum language. */
75af490b	398
bf229b4e FF	399	extern const struct language_defn *
	400	language_def PARAMS ((enum language));
	401
75af490b JG	402	extern char *
75af490b JG	403	language_str PARAMS ((enum language));
c8023e66 JG	404
c8023e66 JG	405	/* Add a language to the set known by GDB (at initialization time). */
d8ce1326	406
75af490b JG	407	extern void
	408	add_language PARAMS ((const struct language_defn *));
	409
	410	extern enum language
	411	get_frame_language PARAMS ((void)); /* In stack.c */
	412
	413	#endif /* defined (LANGUAGE_H) */