1 /* Multiple source language support for GDB.
2 Copyright 1991, 1992 Free Software Foundation, Inc.
3 Contributed by the Department of Computer Science at the State University
4 of New York at Buffalo.
6 This file is part of GDB.
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.
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.
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. */
22 /* This file contains functions that return things that are specific
23 to languages. Each function should examine current_language if necessary,
24 and return the appropriate result. */
26 /* FIXME: Most of these would be better organized as macros which
27 return data out of a "language-specific" struct pointer that is set
28 whenever the working language changes. That would be a lot faster. */
39 #include "expression.h"
42 #include "parser-defs.h"
45 show_language_command PARAMS ((char *, int));
48 set_language_command PARAMS ((char *, int));
51 show_type_command PARAMS ((char *, int));
54 set_type_command PARAMS ((char *, int));
57 show_range_command PARAMS ((char *, int));
60 set_range_command PARAMS ((char *, int));
63 set_range_str PARAMS ((void));
66 set_type_str PARAMS ((void));
69 set_lang_str PARAMS ((void));
72 unk_lang_error PARAMS ((char *));
75 unk_lang_parser PARAMS ((void));
78 show_check PARAMS ((char *, int));
81 set_check PARAMS ((char *, int));
84 set_type_range PARAMS ((void));
86 /* Forward declaration */
87 extern const struct language_defn unknown_language_defn;
88 extern char *warning_pre_print;
90 /* The current (default at startup) state of type and range checking.
91 (If the modes are set to "auto", though, these are changed based
92 on the default language at startup, and then again based on the
93 language of the first source file. */
95 enum range_mode range_mode = range_mode_auto;
96 enum range_check range_check = range_check_off;
97 enum type_mode type_mode = type_mode_auto;
98 enum type_check type_check = type_check_off;
100 /* The current language and language_mode (see language.h) */
102 const struct language_defn *current_language = &unknown_language_defn;
103 enum language_mode language_mode = language_mode_auto;
105 /* The language that the user expects to be typing in (the language
106 of main(), or the last language we notified them about, or C). */
108 const struct language_defn *expected_language;
110 /* The list of supported languages. The list itself is malloc'd. */
112 static const struct language_defn **languages;
113 static unsigned languages_size;
114 static unsigned languages_allocsize;
115 #define DEFAULT_ALLOCSIZE 4
117 /* The "set language/type/range" commands all put stuff in these
118 buffers. This is to make them work as set/show commands. The
119 user's string is copied here, then the set_* commands look at
120 them and update them to something that looks nice when it is
123 static char *language;
127 /* Warning issued when current_language and the language of the current
128 frame do not match. */
129 char lang_frame_mismatch_warn[] =
130 "Warning: the current language does not match this frame.";
133 /* This page contains the functions corresponding to GDB commands
134 and their helpers. */
136 /* Show command. Display a warning if the language set
137 does not match the frame. */
139 show_language_command (ignore, from_tty)
143 enum language flang; /* The language of the current frame */
145 flang = get_frame_language();
146 if (flang != language_unknown &&
147 language_mode == language_mode_manual &&
148 current_language->la_language != flang)
149 printf_filtered("%s\n",lang_frame_mismatch_warn);
152 /* Set command. Change the current working language. */
154 set_language_command (ignore, from_tty)
162 /* FIXME -- do this from the list, with HELP. */
163 if (!language || !language[0]) {
164 printf("The currently understood settings are:\n\n\
165 local or auto Automatic setting based on source file\n\
166 c Use the C language\n\
167 c++ Use the C++ language\n\
168 chill Use the Chill language\n\
169 modula-2 Use the Modula-2 language\n");
170 /* Restore the silly string. */
171 set_language(current_language->la_language);
175 /* Search the list of languages for a match. */
176 for (i = 0; i < languages_size; i++) {
177 if (!strcmp (languages[i]->la_name, language)) {
178 /* Found it! Go into manual mode, and use this language. */
179 if (languages[i]->la_language == language_auto) {
180 /* Enter auto mode. Set to the current frame's language, if known. */
181 language_mode = language_mode_auto;
182 flang = get_frame_language();
183 if (flang!=language_unknown)
185 expected_language = current_language;
188 /* Enter manual mode. Set the specified language. */
189 language_mode = language_mode_manual;
190 current_language = languages[i];
193 expected_language = current_language;
199 /* Reset the language (esp. the global string "language") to the
201 err_lang=savestring(language,strlen(language));
202 make_cleanup (free, err_lang); /* Free it after error */
203 set_language(current_language->la_language);
204 error ("Unknown language `%s'.",err_lang);
207 /* Show command. Display a warning if the type setting does
208 not match the current language. */
210 show_type_command(ignore, from_tty)
214 if (type_check != current_language->la_type_check)
216 "Warning: the current type check setting does not match the language.\n");
219 /* Set command. Change the setting for type checking. */
221 set_type_command(ignore, from_tty)
225 if (!strcmp(type,"on"))
227 type_check = type_check_on;
228 type_mode = type_mode_manual;
230 else if (!strcmp(type,"warn"))
232 type_check = type_check_warn;
233 type_mode = type_mode_manual;
235 else if (!strcmp(type,"off"))
237 type_check = type_check_off;
238 type_mode = type_mode_manual;
240 else if (!strcmp(type,"auto"))
242 type_mode = type_mode_auto;
244 /* Avoid hitting the set_type_str call below. We
245 did it in set_type_range. */
249 show_type_command((char *)NULL, from_tty);
252 /* Show command. Display a warning if the range setting does
253 not match the current language. */
255 show_range_command(ignore, from_tty)
260 if (range_check != current_language->la_range_check)
262 "Warning: the current range check setting does not match the language.\n");
265 /* Set command. Change the setting for range checking. */
267 set_range_command(ignore, from_tty)
271 if (!strcmp(range,"on"))
273 range_check = range_check_on;
274 range_mode = range_mode_manual;
276 else if (!strcmp(range,"warn"))
278 range_check = range_check_warn;
279 range_mode = range_mode_manual;
281 else if (!strcmp(range,"off"))
283 range_check = range_check_off;
284 range_mode = range_mode_manual;
286 else if (!strcmp(range,"auto"))
288 range_mode = range_mode_auto;
290 /* Avoid hitting the set_range_str call below. We
291 did it in set_type_range. */
295 show_range_command((char *)0, from_tty);
298 /* Set the status of range and type checking based on
299 the current modes and the current language.
300 If SHOW is non-zero, then print out the current language,
301 type and range checking status. */
306 if (range_mode == range_mode_auto)
307 range_check = current_language->la_range_check;
309 if (type_mode == type_mode_auto)
310 type_check = current_language->la_type_check;
316 /* Set current language to (enum language) LANG. */
324 for (i = 0; i < languages_size; i++) {
325 if (languages[i]->la_language == lang) {
326 current_language = languages[i];
334 /* This page contains functions that update the global vars
335 language, type and range. */
342 if (language_mode == language_mode_auto)
343 prefix = "auto; currently ";
345 language = concat(prefix, current_language->la_name, NULL);
351 char *tmp, *prefix = "";
354 if (type_mode==type_mode_auto)
355 prefix = "auto; currently ";
365 case type_check_warn:
369 error ("Unrecognized type check setting.");
372 type = concat(prefix,tmp,NULL);
378 char *tmp, *pref = "";
381 if (range_mode==range_mode_auto)
382 pref = "auto; currently ";
389 case range_check_off:
392 case range_check_warn:
396 error ("Unrecognized range check setting.");
399 range = concat(pref,tmp,NULL);
403 /* Print out the current language settings: language, range and
404 type checking. If QUIETLY, print only what has changed. */
407 language_info (quietly)
410 if (quietly && expected_language == current_language)
413 expected_language = current_language;
414 printf("Current language: %s\n",language);
415 show_language_command((char *)0, 1);
419 printf("Type checking: %s\n",type);
420 show_type_command((char *)0, 1);
421 printf("Range checking: %s\n",range);
422 show_range_command((char *)0, 1);
426 /* Return the result of a binary operation. */
428 #if 0 /* Currently unused */
431 binop_result_type(v1,v2)
436 l1 = TYPE_LENGTH(VALUE_TYPE(v1));
437 l2 = TYPE_LENGTH(VALUE_TYPE(v2));
439 switch(current_language->la_language)
443 if (TYPE_CODE(VALUE_TYPE(v1))==TYPE_CODE_FLT)
444 return TYPE_CODE(VALUE_TYPE(v2)) == TYPE_CODE_FLT && l2 > l1 ?
445 VALUE_TYPE(v2) : VALUE_TYPE(v1);
446 else if (TYPE_CODE(VALUE_TYPE(v2))==TYPE_CODE_FLT)
447 return TYPE_CODE(VALUE_TYPE(v1)) == TYPE_CODE_FLT && l1 > l2 ?
448 VALUE_TYPE(v1) : VALUE_TYPE(v2);
449 else if (TYPE_UNSIGNED(VALUE_TYPE(v1)) && l1 > l2)
450 return VALUE_TYPE(v1);
451 else if (TYPE_UNSIGNED(VALUE_TYPE(v2)) && l2 > l1)
452 return VALUE_TYPE(v2);
453 else /* Both are signed. Result is the longer type */
454 return l1 > l2 ? VALUE_TYPE(v1) : VALUE_TYPE(v2);
457 /* If we are doing type-checking, l1 should equal l2, so this is
459 return l1 > l2 ? VALUE_TYPE(v1) : VALUE_TYPE(v2);
462 error ("Missing Chill support in function binop_result_check.");/*FIXME*/
465 return (struct type *)0; /* For lint */
471 /* This page contains functions that return format strings for
472 printf for printing out numbers in different formats */
474 /* Returns the appropriate printf format for hexadecimal
477 local_hex_format_custom(pre)
480 static char form[50];
482 strcpy (form, current_language->la_hex_format_pre);
484 strcat (form, current_language->la_hex_format_suf);
488 /* Converts a number to hexadecimal and stores it in a static
489 string. Returns a pointer to this string. */
491 local_hex_string (num)
496 sprintf (res, current_language->la_hex_format, num);
500 /* Converts a number to custom hexadecimal and stores it in a static
501 string. Returns a pointer to this string. */
503 local_hex_string_custom(num,pre)
509 sprintf (res, local_hex_format_custom(pre), num);
513 /* Returns the appropriate printf format for octal
516 local_octal_format_custom(pre)
519 static char form[50];
521 strcpy (form, current_language->la_octal_format_pre);
523 strcat (form, current_language->la_octal_format_suf);
527 /* This page contains functions that are used in type/range checking.
528 They all return zero if the type/range check fails.
530 It is hoped that these will make extending GDB to parse different
531 languages a little easier. These are primarily used in eval.c when
532 evaluating expressions and making sure that their types are correct.
533 Instead of having a mess of conjucted/disjuncted expressions in an "if",
534 the ideas of type can be wrapped up in the following functions.
536 Note that some of them are not currently dependent upon which language
537 is currently being parsed. For example, floats are the same in
538 C and Modula-2 (ie. the only floating point type has TYPE_CODE of
539 TYPE_CODE_FLT), while booleans are different. */
541 /* Returns non-zero if its argument is a simple type. This is the same for
542 both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur,
543 and thus will never cause the failure of the test. */
548 switch (TYPE_CODE (type)) {
553 case TYPE_CODE_RANGE:
562 /* Returns non-zero if its argument is of an ordered type. */
567 switch (TYPE_CODE (type)) {
572 case TYPE_CODE_RANGE:
580 /* Returns non-zero if the two types are the same */
582 same_type (arg1, arg2)
583 struct type *arg1, *arg2;
585 if (structured_type(arg1) ? !structured_type(arg2) : structured_type(arg2))
586 /* One is structured and one isn't */
588 else if (structured_type(arg1) && structured_type(arg2))
590 else if (numeric_type(arg1) && numeric_type(arg2))
591 return (TYPE_CODE(arg2) == TYPE_CODE(arg1)) &&
592 (TYPE_UNSIGNED(arg1) == TYPE_UNSIGNED(arg2))
598 /* Returns non-zero if the type is integral */
603 switch(current_language->la_language)
607 return (TYPE_CODE(type) != TYPE_CODE_INT) &&
608 (TYPE_CODE(type) != TYPE_CODE_ENUM) ? 0 : 1;
610 return TYPE_CODE(type) != TYPE_CODE_INT ? 0 : 1;
612 error ("Missing Chill support in function integral_type."); /*FIXME*/
614 error ("Language not supported.");
618 /* Returns non-zero if the value is numeric */
623 switch (TYPE_CODE (type)) {
633 /* Returns non-zero if the value is a character type */
635 character_type (type)
638 switch(current_language->la_language)
641 return TYPE_CODE(type) != TYPE_CODE_CHAR ? 0 : 1;
645 return (TYPE_CODE(type) == TYPE_CODE_INT) &&
646 TYPE_LENGTH(type) == sizeof(char)
649 error ("Missing Chill support in function character_type."); /*FIXME*/
655 /* Returns non-zero if the value is a boolean type */
660 switch(current_language->la_language)
664 return TYPE_CODE(type) != TYPE_CODE_BOOL ? 0 : 1;
668 return TYPE_CODE(type) != TYPE_CODE_INT ? 0 : 1;
674 /* Returns non-zero if the value is a floating-point type */
679 return TYPE_CODE(type) == TYPE_CODE_FLT;
682 /* Returns non-zero if the value is a pointer type */
687 return TYPE_CODE(type) == TYPE_CODE_PTR ||
688 TYPE_CODE(type) == TYPE_CODE_REF;
691 /* Returns non-zero if the value is a structured type */
693 structured_type(type)
696 switch(current_language->la_language)
700 return (TYPE_CODE(type) == TYPE_CODE_STRUCT) ||
701 (TYPE_CODE(type) == TYPE_CODE_UNION) ||
702 (TYPE_CODE(type) == TYPE_CODE_ARRAY);
704 return (TYPE_CODE(type) == TYPE_CODE_STRUCT) ||
705 (TYPE_CODE(type) == TYPE_CODE_SET) ||
706 (TYPE_CODE(type) == TYPE_CODE_ARRAY);
708 error ("Missing Chill support in function structured_type."); /*FIXME*/
714 /* This page contains functions that return info about
715 (struct value) values used in GDB. */
717 /* Returns non-zero if the value VAL represents a true value. */
726 switch (current_language->la_language) {
730 return !value_logical_not (val);
733 type = VALUE_TYPE(val);
734 if (TYPE_CODE (type) != TYPE_CODE_BOOL)
735 return 0; /* Not a BOOLEAN at all */
736 /* Search the fields for one that matches the current value. */
737 len = TYPE_NFIELDS (type);
738 v = value_as_long (val);
739 for (i = 0; i < len; i++)
742 if (v == TYPE_FIELD_BITPOS (type, i))
746 return 0; /* Not a valid BOOLEAN value */
747 if (!strcmp ("TRUE", TYPE_FIELD_NAME(VALUE_TYPE(val), i)))
748 return 1; /* BOOLEAN with value TRUE */
750 return 0; /* BOOLEAN with value FALSE */
754 error ("Missing Chill support in function value_type."); /*FIXME*/
757 error ("Language not supported.");
761 /* Returns non-zero if the operator OP is defined on
762 the values ARG1 and ARG2. */
764 #if 0 /* Currently unused */
767 binop_type_check(arg1,arg2,op)
771 struct type *t1, *t2;
773 /* If we're not checking types, always return success. */
778 if (arg2!=(value)NULL)
787 if ((numeric_type(t1) && pointer_type(t2)) ||
788 (pointer_type(t1) && numeric_type(t2)))
790 warning ("combining pointer and integer.\n");
796 if (!numeric_type(t1) || !numeric_type(t2))
797 type_op_error ("Arguments to %s must be numbers.",op);
798 else if (!same_type(t1,t2))
799 type_op_error ("Arguments to %s must be of the same type.",op);
802 case BINOP_LOGICAL_AND:
803 case BINOP_LOGICAL_OR:
804 if (!boolean_type(t1) || !boolean_type(t2))
805 type_op_error ("Arguments to %s must be of boolean type.",op);
809 if ((pointer_type(t1) && !(pointer_type(t2) || integral_type(t2))) ||
810 (pointer_type(t2) && !(pointer_type(t1) || integral_type(t1))))
811 type_op_error ("A pointer can only be compared to an integer or pointer.",op);
812 else if ((pointer_type(t1) && integral_type(t2)) ||
813 (integral_type(t1) && pointer_type(t2)))
815 warning ("combining integer and pointer.\n");
818 else if (!simple_type(t1) || !simple_type(t2))
819 type_op_error ("Arguments to %s must be of simple type.",op);
820 else if (!same_type(t1,t2))
821 type_op_error ("Arguments to %s must be of the same type.",op);
825 if (!integral_type(t1) || !integral_type(t2))
826 type_op_error ("Arguments to %s must be of integral type.",op);
833 if (!ordered_type(t1) || !ordered_type(t2))
834 type_op_error ("Arguments to %s must be of ordered type.",op);
835 else if (!same_type(t1,t2))
836 type_op_error ("Arguments to %s must be of the same type.",op);
840 if (pointer_type(t1) && !integral_type(t2))
841 type_op_error ("A pointer can only be assigned an integer.",op);
842 else if (pointer_type(t1) && integral_type(t2))
844 warning ("combining integer and pointer.");
847 else if (!simple_type(t1) || !simple_type(t2))
848 type_op_error ("Arguments to %s must be of simple type.",op);
849 else if (!same_type(t1,t2))
850 type_op_error ("Arguments to %s must be of the same type.",op);
853 /* Unary checks -- arg2 is null */
855 case UNOP_LOGICAL_NOT:
856 if (!boolean_type(t1))
857 type_op_error ("Argument to %s must be of boolean type.",op);
862 if (!numeric_type(t1))
863 type_op_error ("Argument to %s must be of numeric type.",op);
867 if (integral_type(t1))
869 warning ("combining pointer and integer.\n");
872 else if (!pointer_type(t1))
873 type_op_error ("Argument to %s must be a pointer.",op);
876 case UNOP_PREINCREMENT:
877 case UNOP_POSTINCREMENT:
878 case UNOP_PREDECREMENT:
879 case UNOP_POSTDECREMENT:
880 if (!ordered_type(t1))
881 type_op_error ("Argument to %s must be of an ordered type.",op);
885 /* Ok. The following operators have different meanings in
886 different languages. */
887 switch(current_language->la_language)
895 if (!numeric_type(t1) || !numeric_type(t2))
896 type_op_error ("Arguments to %s must be numbers.",op);
907 if (!float_type(t1) || !float_type(t2))
908 type_op_error ("Arguments to %s must be floating point numbers.",op);
911 if (!integral_type(t1) || !integral_type(t2))
912 type_op_error ("Arguments to %s must be of integral type.",op);
919 error ("Missing Chill support in function binop_type_check.");/*FIXME*/
929 /* This page contains functions for the printing out of
930 error messages that occur during type- and range-
933 /* Prints the format string FMT with the operator as a string
934 corresponding to the opcode OP. If FATAL is non-zero, then
935 this is an error and error () is called. Otherwise, it is
936 a warning and printf() is called. */
938 op_error (fmt,op,fatal)
944 error (fmt,op_string(op));
947 warning (fmt,op_string(op));
951 /* These are called when a language fails a type- or range-check.
952 The first argument should be a printf()-style format string, and
953 the rest of the arguments should be its arguments. If
954 [type|range]_check is [type|range]_check_on, then return_to_top_level()
955 is called in the style of error (). Otherwise, the message is prefixed
956 by the value of warning_pre_print and we do not return to the top level. */
959 type_error (va_alist)
965 if (type_check==type_check_warn)
966 fprintf(stderr,warning_pre_print);
968 target_terminal_ours();
971 string = va_arg (args, char *);
972 vfprintf (stderr, string, args);
973 fprintf (stderr, "\n");
975 if (type_check==type_check_on)
976 return_to_top_level();
980 range_error (va_alist)
986 if (range_check==range_check_warn)
987 fprintf(stderr,warning_pre_print);
989 target_terminal_ours();
992 string = va_arg (args, char *);
993 vfprintf (stderr, string, args);
994 fprintf (stderr, "\n");
996 if (range_check==range_check_on)
997 return_to_top_level();
1001 /* This page contains miscellaneous functions */
1003 /* Return the language as a string */
1010 for (i = 0; i < languages_size; i++) {
1011 if (languages[i]->la_language == lang) {
1012 return languages[i]->la_name;
1019 set_check (ignore, from_tty)
1024 "\"set check\" must be followed by the name of a check subcommand.\n");
1025 help_list(setchecklist, "set check ", -1, stdout);
1029 show_check (ignore, from_tty)
1033 cmd_show_list(showchecklist, from_tty, "");
1036 /* Add a language to the set of known languages. */
1040 const struct language_defn *lang;
1042 if (lang->la_magic != LANG_MAGIC)
1044 fprintf(stderr, "Magic number of %s language struct wrong\n",
1051 languages_allocsize = DEFAULT_ALLOCSIZE;
1052 languages = (const struct language_defn **) xmalloc
1053 (languages_allocsize * sizeof (*languages));
1055 if (languages_size >= languages_allocsize)
1057 languages_allocsize *= 2;
1058 languages = (const struct language_defn **) xrealloc ((char *) languages,
1059 languages_allocsize * sizeof (*languages));
1061 languages[languages_size++] = lang;
1064 /* Define the language that is no language. */
1073 unk_lang_error (msg)
1076 error ("Attempted to parse an expression with unknown language");
1079 static struct type ** const (unknown_builtin_types[]) = { 0 };
1080 static const struct op_print unk_op_print_tab[] = { 0 };
1082 const struct language_defn unknown_language_defn = {
1085 &unknown_builtin_types[0],
1090 &builtin_type_error, /* longest signed integral type */
1091 &builtin_type_error, /* longest unsigned integral type */
1092 &builtin_type_error, /* longest floating point type */
1093 "0x%x", "0x%", "x", /* Hex format, prefix, suffix */
1094 "0%o", "0%", "o", /* Octal format, prefix, suffix */
1095 unk_op_print_tab, /* expression operators for printing */
1099 /* These two structs define fake entries for the "local" and "auto" options. */
1100 const struct language_defn auto_language_defn = {
1103 &unknown_builtin_types[0],
1108 &builtin_type_error, /* longest signed integral type */
1109 &builtin_type_error, /* longest unsigned integral type */
1110 &builtin_type_error, /* longest floating point type */
1111 "0x%x", "0x%", "x", /* Hex format, prefix, suffix */
1112 "0%o", "0%", "o", /* Octal format, prefix, suffix */
1113 unk_op_print_tab, /* expression operators for printing */
1117 const struct language_defn local_language_defn = {
1120 &unknown_builtin_types[0],
1125 &builtin_type_error, /* longest signed integral type */
1126 &builtin_type_error, /* longest unsigned integral type */
1127 &builtin_type_error, /* longest floating point type */
1128 "0x%x", "0x%", "x", /* Hex format, prefix, suffix */
1129 "0%o", "0%", "o", /* Octal format, prefix, suffix */
1130 unk_op_print_tab, /* expression operators for printing */
1134 /* Initialize the language routines */
1137 _initialize_language()
1139 struct cmd_list_element *set, *show;
1141 /* GDB commands for language specific stuff */
1143 set = add_set_cmd ("language", class_support, var_string_noescape,
1145 "Set the current source language.",
1147 show = add_show_from_set (set, &showlist);
1148 set->function.cfunc = set_language_command;
1149 show->function.cfunc = show_language_command;
1151 add_prefix_cmd ("check", no_class, set_check,
1152 "Set the status of the type/range checker",
1153 &setchecklist, "set check ", 0, &setlist);
1154 add_alias_cmd ("c", "check", no_class, 1, &setlist);
1155 add_alias_cmd ("ch", "check", no_class, 1, &setlist);
1157 add_prefix_cmd ("check", no_class, show_check,
1158 "Show the status of the type/range checker",
1159 &showchecklist, "show check ", 0, &showlist);
1160 add_alias_cmd ("c", "check", no_class, 1, &showlist);
1161 add_alias_cmd ("ch", "check", no_class, 1, &showlist);
1163 set = add_set_cmd ("type", class_support, var_string_noescape,
1165 "Set type checking. (on/warn/off/auto)",
1167 show = add_show_from_set (set, &showchecklist);
1168 set->function.cfunc = set_type_command;
1169 show->function.cfunc = show_type_command;
1171 set = add_set_cmd ("range", class_support, var_string_noescape,
1173 "Set range checking. (on/warn/off/auto)",
1175 show = add_show_from_set (set, &showchecklist);
1176 set->function.cfunc = set_range_command;
1177 show->function.cfunc = show_range_command;
1179 add_language (&unknown_language_defn);
1180 add_language (&local_language_defn);
1181 add_language (&auto_language_defn);
1183 language = savestring ("auto",strlen("auto"));
1184 range = savestring ("auto",strlen("auto"));
1185 type = savestring ("auto",strlen("auto"));
1187 /* Have the above take effect */
1189 set_language_command (language, 0);
1190 set_type_command (NULL, 0);
1191 set_range_command (NULL, 0);