}
}
\f
-/* Return the result of a binary operation. */
-
-#if 0 /* Currently unused */
-
-struct type *
-binop_result_type (struct value *v1, struct value *v2)
-{
- int size, uns;
- struct type *t1 = check_typedef (VALUE_TYPE (v1));
- struct type *t2 = check_typedef (VALUE_TYPE (v2));
-
- int l1 = TYPE_LENGTH (t1);
- int l2 = TYPE_LENGTH (t2);
-
- switch (current_language->la_language)
- {
- case language_c:
- case language_cplus:
- case language_d:
- case language_objc:
- if (TYPE_CODE (t1) == TYPE_CODE_FLT)
- return TYPE_CODE (t2) == TYPE_CODE_FLT && l2 > l1 ?
- VALUE_TYPE (v2) : VALUE_TYPE (v1);
- else if (TYPE_CODE (t2) == TYPE_CODE_FLT)
- return TYPE_CODE (t1) == TYPE_CODE_FLT && l1 > l2 ?
- VALUE_TYPE (v1) : VALUE_TYPE (v2);
- else if (TYPE_UNSIGNED (t1) && l1 > l2)
- return VALUE_TYPE (v1);
- else if (TYPE_UNSIGNED (t2) && l2 > l1)
- return VALUE_TYPE (v2);
- else /* Both are signed. Result is the
- longer type. */
- return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2);
- break;
- case language_m2:
- /* If we are doing type-checking, l1 should equal l2, so this is
- not needed. */
- return l1 > l2 ? VALUE_TYPE (v1) : VALUE_TYPE (v2);
- break;
- }
- internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
- return (struct type *) 0; /* For lint */
-}
-
-#endif /* 0 */
-#if 0
-/* This page contains functions that are used in type/range checking.
- They all return zero if the type/range check fails.
-
- It is hoped that these will make extending GDB to parse different
- languages a little easier. These are primarily used in eval.c when
- evaluating expressions and making sure that their types are correct.
- Instead of having a mess of conjucted/disjuncted expressions in an "if",
- the ideas of type can be wrapped up in the following functions.
-
- Note that some of them are not currently dependent upon which language
- is currently being parsed. For example, floats are the same in
- C and Modula-2 (ie. the only floating point type has TYPE_CODE of
- TYPE_CODE_FLT), while booleans are different. */
-
-/* Returns non-zero if its argument is a simple type. This is the same for
- both Modula-2 and for C. In the C case, TYPE_CODE_CHAR will never occur,
- and thus will never cause the failure of the test. */
-int
-simple_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- switch (TYPE_CODE (type))
- {
- case TYPE_CODE_INT:
- case TYPE_CODE_CHAR:
- case TYPE_CODE_ENUM:
- case TYPE_CODE_FLT:
- case TYPE_CODE_RANGE:
- case TYPE_CODE_BOOL:
- return 1;
-
- default:
- return 0;
- }
-}
-
-/* Returns non-zero if its argument is of an ordered type.
- An ordered type is one in which the elements can be tested for the
- properties of "greater than", "less than", etc, or for which the
- operations "increment" or "decrement" make sense. */
-int
-ordered_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- switch (TYPE_CODE (type))
- {
- case TYPE_CODE_INT:
- case TYPE_CODE_CHAR:
- case TYPE_CODE_ENUM:
- case TYPE_CODE_FLT:
- case TYPE_CODE_RANGE:
- return 1;
-
- default:
- return 0;
- }
-}
-
-/* Returns non-zero if the two types are the same. */
-int
-same_type (struct type *arg1, struct type *arg2)
-{
- CHECK_TYPEDEF (type);
- if (structured_type (arg1)
- ? !structured_type (arg2) : structured_type (arg2))
- /* One is structured and one isn't. */
- return 0;
- else if (structured_type (arg1) && structured_type (arg2))
- return arg1 == arg2;
- else if (numeric_type (arg1) && numeric_type (arg2))
- return (TYPE_CODE (arg2) == TYPE_CODE (arg1)) &&
- (TYPE_UNSIGNED (arg1) == TYPE_UNSIGNED (arg2))
- ? 1 : 0;
- else
- return arg1 == arg2;
-}
-
-/* Returns non-zero if the type is integral. */
-int
-integral_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- switch (current_language->la_language)
- {
- case language_c:
- case language_cplus:
- case language_d:
- case language_objc:
- return (TYPE_CODE (type) != TYPE_CODE_INT) &&
- (TYPE_CODE (type) != TYPE_CODE_ENUM) ? 0 : 1;
- case language_m2:
- case language_pascal:
- return TYPE_CODE (type) != TYPE_CODE_INT ? 0 : 1;
- default:
- error (_("Language not supported."));
- }
-}
-
-/* Returns non-zero if the value is numeric. */
-int
-numeric_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- switch (TYPE_CODE (type))
- {
- case TYPE_CODE_INT:
- case TYPE_CODE_FLT:
- return 1;
-
- default:
- return 0;
- }
-}
-
-/* Returns non-zero if the value is a character type. */
-int
-character_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- switch (current_language->la_language)
- {
- case language_m2:
- case language_pascal:
- return TYPE_CODE (type) != TYPE_CODE_CHAR ? 0 : 1;
-
- case language_c:
- case language_cplus:
- case language_d:
- case language_objc:
- return (TYPE_CODE (type) == TYPE_CODE_INT) &&
- TYPE_LENGTH (type) == sizeof (char)
- ? 1 : 0;
- default:
- return (0);
- }
-}
-
-/* Returns non-zero if the value is a string type. */
-int
-string_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- switch (current_language->la_language)
- {
- case language_m2:
- case language_pascal:
- return TYPE_CODE (type) != TYPE_CODE_STRING ? 0 : 1;
-
- case language_c:
- case language_cplus:
- case language_d:
- case language_objc:
- /* C does not have distinct string type. */
- return (0);
- default:
- return (0);
- }
-}
-
-/* Returns non-zero if the value is a boolean type. */
-int
-boolean_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- if (TYPE_CODE (type) == TYPE_CODE_BOOL)
- return 1;
- switch (current_language->la_language)
- {
- case language_c:
- case language_cplus:
- case language_d:
- case language_objc:
- /* Might be more cleanly handled by having a
- TYPE_CODE_INT_NOT_BOOL for (the deleted) CHILL and such
- languages, or a TYPE_CODE_INT_OR_BOOL for C. */
- if (TYPE_CODE (type) == TYPE_CODE_INT)
- return 1;
- default:
- break;
- }
- return 0;
-}
-
-/* Returns non-zero if the value is a floating-point type. */
-int
-float_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- return TYPE_CODE (type) == TYPE_CODE_FLT;
-}
-#endif
/* Returns non-zero if the value is a pointer type. */
int
TYPE_CODE (type) == TYPE_CODE_REF;
}
-#if 0
-/* Returns non-zero if the value is a structured type. */
-int
-structured_type (struct type *type)
-{
- CHECK_TYPEDEF (type);
- switch (current_language->la_language)
- {
- case language_c:
- case language_cplus:
- case language_d:
- case language_objc:
- return (TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
- (TYPE_CODE (type) == TYPE_CODE_UNION) ||
- (TYPE_CODE (type) == TYPE_CODE_ARRAY);
- case language_pascal:
- return (TYPE_CODE(type) == TYPE_CODE_STRUCT) ||
- (TYPE_CODE(type) == TYPE_CODE_UNION) ||
- (TYPE_CODE(type) == TYPE_CODE_SET) ||
- (TYPE_CODE(type) == TYPE_CODE_ARRAY);
- case language_m2:
- return (TYPE_CODE (type) == TYPE_CODE_STRUCT) ||
- (TYPE_CODE (type) == TYPE_CODE_SET) ||
- (TYPE_CODE (type) == TYPE_CODE_ARRAY);
- default:
- return (0);
- }
-}
-#endif
\f
/* This page contains functions that return info about
(struct value) values used in GDB. */
projects / binutils-gdb.git / commitdiff