1 /* Definitions for c-common.c.
2 Copyright (C) 1987, 1993, 1994, 1995, 1997, 1998,
3 1999, 2000 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
22 /* Standard named or nameless data types of the C compiler. */
27 CTI_SIGNED_WCHAR_TYPE
,
28 CTI_UNSIGNED_WCHAR_TYPE
,
29 CTI_WIDEST_INT_LIT_TYPE
,
30 CTI_WIDEST_UINT_LIT_TYPE
,
36 CTI_CONST_STRING_TYPE
,
41 CTI_DEFAULT_FUNCTION_TYPE
,
47 CTI_PTR_FTYPE_SIZETYPE
,
50 CTI_G77_UINTEGER_TYPE
,
52 CTI_G77_ULONGINT_TYPE
,
57 extern tree c_global_trees
[CTI_MAX
];
59 typedef enum c_language_kind
61 clk_c
, /* A dialect of C: K&R C, ANSI/ISO C89, C2000,
63 clk_cplusplus
, /* ANSI/ISO C++ */
64 clk_objective_c
/* Objective C */
68 /* The variant of the C language being processed. Each C language
69 front-end defines this variable. */
70 extern c_language_kind c_language
;
72 #define wchar_type_node c_global_trees[CTI_WCHAR_TYPE]
73 #define signed_wchar_type_node c_global_trees[CTI_SIGNED_WCHAR_TYPE]
74 #define unsigned_wchar_type_node c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
75 #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
76 #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
78 #define boolean_type_node c_global_trees[CTI_BOOLEAN_TYPE]
79 #define boolean_true_node c_global_trees[CTI_BOOLEAN_TRUE]
80 #define boolean_false_node c_global_trees[CTI_BOOLEAN_FALSE]
82 #define char_array_type_node c_global_trees[CTI_CHAR_ARRAY_TYPE]
83 #define wchar_array_type_node c_global_trees[CTI_WCHAR_ARRAY_TYPE]
84 #define int_array_type_node c_global_trees[CTI_INT_ARRAY_TYPE]
85 #define string_type_node c_global_trees[CTI_STRING_TYPE]
86 #define const_string_type_node c_global_trees[CTI_CONST_STRING_TYPE]
88 #define default_function_type c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
89 #define void_list_node c_global_trees[CTI_VOID_LIST]
90 #define void_ftype c_global_trees[CTI_VOID_FTYPE]
91 #define void_ftype_ptr c_global_trees[CTI_VOID_FTYPE_PTR]
92 #define int_ftype_int c_global_trees[CTI_INT_FTYPE_INT]
93 #define ptr_ftype_sizetype c_global_trees[CTI_PTR_FTYPE_SIZETYPE]
95 /* g77 integer types, which which must be kept in sync with f/com.h */
96 #define g77_integer_type_node c_global_trees[CTI_G77_INTEGER_TYPE]
97 #define g77_uinteger_type_node c_global_trees[CTI_G77_UINTEGER_TYPE]
98 #define g77_longint_type_node c_global_trees[CTI_G77_LONGINT_TYPE]
99 #define g77_ulongint_type_node c_global_trees[CTI_G77_ULONGINT_TYPE]
101 /* Pointer to function to generate the VAR_DECL for __FUNCTION__ etc.
102 ID is the identifier to use, NAME is the string.
103 TYPE_DEP indicates whether it depends on type of the function or not
104 (i.e. __PRETTY_FUNCTION__). */
106 extern tree (*make_fname_decl
) PARAMS ((tree
, const char *, int));
108 extern void declare_function_name
PARAMS ((void));
109 extern void decl_attributes
PARAMS ((tree
, tree
, tree
));
110 extern void init_function_format_info
PARAMS ((void));
111 extern void check_function_format
PARAMS ((tree
, tree
, tree
));
112 extern void c_apply_type_quals_to_decl
PARAMS ((int, tree
));
113 /* Print an error message for invalid operands to arith operation CODE.
114 NOP_EXPR is used as a special case (see truthvalue_conversion). */
115 extern void binary_op_error
PARAMS ((enum tree_code
));
116 extern void c_expand_expr_stmt
PARAMS ((tree
));
117 extern void c_expand_start_cond
PARAMS ((tree
, int, int));
118 extern void c_expand_start_else
PARAMS ((void));
119 extern void c_expand_end_cond
PARAMS ((void));
120 /* Validate the expression after `case' and apply default promotions. */
121 extern tree check_case_value
PARAMS ((tree
));
122 /* Concatenate a list of STRING_CST nodes into one STRING_CST. */
123 extern tree combine_strings
PARAMS ((tree
));
124 extern void constant_expression_warning
PARAMS ((tree
));
125 extern tree convert_and_check
PARAMS ((tree
, tree
));
126 extern void overflow_warning
PARAMS ((tree
));
127 extern void unsigned_conversion_warning
PARAMS ((tree
, tree
));
128 /* Read the rest of the current #-directive line. */
130 extern char *get_directive_line
PARAMS ((void));
131 #define GET_DIRECTIVE_LINE() get_directive_line ()
133 extern char *get_directive_line
PARAMS ((FILE *));
134 #define GET_DIRECTIVE_LINE() get_directive_line (finput)
137 /* Subroutine of build_binary_op, used for comparison operations.
138 See if the operands have both been converted from subword integer types
139 and, if so, perhaps change them both back to their original type. */
140 extern tree shorten_compare
PARAMS ((tree
*, tree
*, tree
*, enum tree_code
*));
141 /* Prepare expr to be an argument of a TRUTH_NOT_EXPR,
142 or validate its data type for an `if' or `while' statement or ?..: exp. */
143 extern tree truthvalue_conversion
PARAMS ((tree
));
144 extern tree type_for_mode
PARAMS ((enum machine_mode
, int));
145 extern tree type_for_size
PARAMS ((unsigned, int));
147 /* Build tree nodes and builtin functions common to both C and C++ language
149 extern void c_common_nodes_and_builtins
PARAMS ((int, int, int));
151 extern tree build_va_arg
PARAMS ((tree
, tree
));
153 /* Nonzero if the type T promotes to itself.
154 ANSI C states explicitly the list of types that promote;
155 in particular, short promotes to int even if they have the same width. */
156 #define C_PROMOTING_INTEGER_TYPE_P(t) \
157 (TREE_CODE ((t)) == INTEGER_TYPE \
158 && (TYPE_MAIN_VARIANT (t) == char_type_node \
159 || TYPE_MAIN_VARIANT (t) == signed_char_type_node \
160 || TYPE_MAIN_VARIANT (t) == unsigned_char_type_node \
161 || TYPE_MAIN_VARIANT (t) == short_integer_type_node \
162 || TYPE_MAIN_VARIANT (t) == short_unsigned_type_node))
164 extern int self_promoting_args_p
PARAMS ((tree
));
165 extern tree simple_type_promotes_to
PARAMS ((tree
));