the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
+/* Reserved identifiers. */
+
+enum rid
+{
+ RID_UNUSED,
+ RID_INT,
+ RID_CHAR,
+ RID_FLOAT,
+ RID_DOUBLE,
+ RID_VOID,
+ RID_UNUSED1,
+
+ /* The first seven are in the order of most frequently used,
+ as emiprically determined. */
+ RID_FIRST_MODIFIER,
+ RID_EXTERN = RID_FIRST_MODIFIER,
+ RID_CONST,
+ RID_LONG,
+ RID_TYPEDEF,
+ RID_UNSIGNED,
+ RID_SHORT,
+ RID_INLINE,
+ RID_AUTO,
+ RID_STATIC,
+ RID_REGISTER,
+ RID_SIGNED,
+ RID_RESTRICT,
+ RID_VOLATILE,
+ RID_BOUNDED,
+ RID_UNBOUNDED,
+ RID_NOALIAS,
+ RID_ITERATOR,
+ RID_COMPLEX,
+
+ RID_IN,
+ RID_OUT,
+ RID_INOUT,
+ RID_BYCOPY,
+ RID_BYREF,
+ RID_ONEWAY,
+ RID_ID,
+
+ RID_MAX
+};
+
+#define NORID RID_UNUSED
+
+/* The elements of `ridpointers' are identifier nodes for the reserved
+ type names and storage classes. It is indexed by a RID_... value. */
+extern tree *ridpointers;
+
/* Standard named or nameless data types of the C compiler. */
enum c_tree_index
CTI_MAX
};
-extern tree c_global_trees[CTI_MAX];
-
-typedef enum c_language_kind
-{
- clk_c, /* A dialect of C: K&R C, ANSI/ISO C89, C2000,
- etc. */
- clk_cplusplus, /* ANSI/ISO C++ */
- clk_objective_c /* Objective C */
-}
-c_language_kind;
-
-/* The variant of the C language being processed. Each C language
- front-end defines this variable. */
-extern c_language_kind c_language;
-
#define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
#define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE]
#define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
#define g77_longint_type_node c_global_trees[CTI_G77_LONGINT_TYPE]
#define g77_ulongint_type_node c_global_trees[CTI_G77_ULONGINT_TYPE]
+extern tree c_global_trees[CTI_MAX];
+
+typedef enum c_language_kind
+{
+ clk_c, /* A dialect of C: K&R C, ANSI/ISO C89, C2000,
+ etc. */
+ clk_cplusplus, /* ANSI/ISO C++ */
+ clk_objective_c /* Objective C */
+}
+c_language_kind;
+
+/* The variant of the C language being processed. Each C language
+ front-end defines this variable. */
+
+extern c_language_kind c_language;
+
+/* Nonzero means give string constants the type `const char *', rather
+ than `char *'. */
+
+extern int flag_const_strings;
+
+/* Warn about *printf or *scanf format/argument anomalies. */
+
+extern int warn_format;
+
+/* Nonzero means do some things the same way PCC does. */
+
+extern int flag_traditional;
+
+/* Nonzero means use the ISO C99 dialect of C. */
+
+extern int flag_isoc99;
+
+/* Nonzero means warn about suggesting putting in ()'s. */
+
+extern int warn_parentheses;
+
+/* Warn if a type conversion is done that might have confusing results. */
+
+extern int warn_conversion;
+
+/* C types are partitioned into three subsets: object, function, and
+ incomplete types. */
+#define C_TYPE_OBJECT_P(type) \
+ (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type))
+
+#define C_TYPE_INCOMPLETE_P(type) \
+ (TREE_CODE (type) != FUNCTION_TYPE && TYPE_SIZE (type) == 0)
+
+#define C_TYPE_FUNCTION_P(type) \
+ (TREE_CODE (type) == FUNCTION_TYPE)
+
+/* For convenience we define a single macro to identify the class of
+ object or incomplete types. */
+#define C_TYPE_OBJECT_OR_INCOMPLETE_P(type) \
+ (!C_TYPE_FUNCTION_P (type))
+
+/* Record in each node resulting from a binary operator
+ what operator was specified for it. */
+#define C_EXP_ORIGINAL_CODE(exp) ((enum tree_code) TREE_COMPLEXITY (exp))
+
/* Pointer to function to generate the VAR_DECL for __FUNCTION__ etc.
ID is the identifier to use, NAME is the string.
TYPE_DEP indicates whether it depends on type of the function or not
extern tree convert_and_check PARAMS ((tree, tree));
extern void overflow_warning PARAMS ((tree));
extern void unsigned_conversion_warning PARAMS ((tree, tree));
+
/* Read the rest of the current #-directive line. */
#if USE_CPPLIB
extern char *get_directive_line PARAMS ((void));
extern int self_promoting_args_p PARAMS ((tree));
extern tree simple_type_promotes_to PARAMS ((tree));
-
+\f
/* These macros provide convenient access to the various _STMT nodes
created when parsing template declarations. */
+
+/* IF_STMT accessors. These give access to the condtion of the if
+ statement, the then block of the if statement, and the else block
+ of the if stsatement if it exists. */
#define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0)
#define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1)
#define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2)
+
+/* WHILE_STMT accessors. These give access to the condtion of the
+ while statement and the body of the while statement, respectively. */
#define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0)
#define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1)
+
+/* DO_STMT accessors. These give access to the condition of the do
+ statement and the body of the do statement, respectively. */
#define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0)
#define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1)
+
+/* RETURN_STMT accessor. This gives the expression associated with a
+ return statement. */
#define RETURN_EXPR(NODE) TREE_OPERAND (RETURN_STMT_CHECK (NODE), 0)
+
+/* EXPR_STMT accessor. This gives the expression associated with an
+ expression statement. */
#define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0)
+
+/* FOR_STMT accessors. These give access to the init statement,
+ condition, update expression, and body of the for statement,
+ respectively. */
#define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0)
#define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1)
#define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2)
#define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3)
+
+/* SWITCH_STMT accessors. These give access to the condition and body
+ of the switch statement, respectively. */
#define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0)
#define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1)
+
+/* CASE_LABEL accessors. These give access to the high and low values
+ of a case label, respectively. */
#define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0)
#define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1)
+
+/* GOTO_STMT accessor. This gives access to the label associated with
+ a goto statement. */
#define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0)
+
+/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of
+ statements assocated with a compound statement. The result is the
+ first statement in the list. Succeeding nodes can be acccessed by
+ calling TREE_CHAIN on a node in the list. */
#define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0)
+
+/* ASM_STMT accessors. ASM_STRING returns a STRING_CST for the
+ instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and
+ ASM_CLOBBERS represent the outputs, inputs, and clobbers for the
+ statement. */
#define ASM_CV_QUAL(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 0)
#define ASM_STRING(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 1)
#define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 2)
#define ASM_INPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 3)
#define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4)
+
+/* DECL_STMT accessor. This gives access to the DECL associated with
+ the given declaration statement. */
#define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_STMT_CHECK (NODE), 0)
+
+/* STMT_EXPR accessor. */
#define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0)
+
+/* LABEL_STMT accessor. This gives access to the label associated with
+ the given label statement. */
#define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0)
/* Nonzero if this SCOPE_STMT is for the beginning of a scope. */
function ended. */
#define STMT_LINENO_FOR_FN_P(NODE) \
(TREE_LANG_FLAG_2 ((NODE)))
+
+
+#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) SYM,
+
+enum c_tree_code {
+ C_DUMMY_TREE_CODE = LAST_AND_UNUSED_TREE_CODE,
+#include "c-common.def"
+ LAST_C_TREE_CODE
+};
+
+#undef DEFTREECODE
+
+extern void add_c_tree_codes PARAMS ((void));
+\f
+
+/* These functions must be defined by each front-end which implements
+ a variant of the C language. They are used in c-common.c. */
+
+extern tree build_unary_op PARAMS ((enum tree_code,
+ tree, int));
+extern tree build_binary_op PARAMS ((enum tree_code,
+ tree, tree, int));
+extern int lvalue_p PARAMS ((tree));
+extern tree default_conversion PARAMS ((tree));
+
+/* Given two integer or real types, return the type for their sum.
+ Given two compatible ANSI C types, returns the merged type. */
+
+extern tree common_type PARAMS ((tree, tree));
+
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