gcc/c-common.h

   1 /* Definitions for c-common.c.
   2    Copyright (C) 1987, 93, 94, 95, 97, 98, 1999 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 /* Standard named or nameless data types of the C compiler.  */
  22
  23 enum c_tree_index
  24 {
  25     CTI_INTQI_TYPE,
  26     CTI_INTHI_TYPE,
  27     CTI_INTSI_TYPE,
  28     CTI_INTDI_TYPE,
  29     CTI_INTTI_TYPE,
  30
  31     CTI_UINTQI_TYPE,
  32     CTI_UINTHI_TYPE,
  33     CTI_UINTSI_TYPE,
  34     CTI_UINTDI_TYPE,
  35     CTI_UINTTI_TYPE,
  36
  37     CTI_SIGNED_CHAR_TYPE,
  38     CTI_UNSIGNED_CHAR_TYPE,
  39     CTI_WCHAR_TYPE,
  40     CTI_SIGNED_WCHAR_TYPE,
  41     CTI_UNSIGNED_WCHAR_TYPE,
  42     CTI_SHORT_INTEGER_TYPE,
  43     CTI_SHORT_UNSIGNED_TYPE,
  44     CTI_LONG_INTEGER_TYPE,
  45     CTI_LONG_UNSIGNED_TYPE,
  46     CTI_LONG_LONG_INTEGER_TYPE,
  47     CTI_LONG_LONG_UNSIGNED_TYPE,
  48     CTI_WIDEST_INT_LIT_TYPE,
  49     CTI_WIDEST_UINT_LIT_TYPE,
  50
  51     CTI_COMPLEX_INTEGER_TYPE,
  52     CTI_COMPLEX_FLOAT_TYPE,
  53     CTI_COMPLEX_DOUBLE_TYPE,
  54     CTI_COMPLEX_LONG_DOUBLE_TYPE,
  55
  56     CTI_FLOAT_TYPE,
  57     CTI_DOUBLE_TYPE,
  58     CTI_LONG_DOUBLE_TYPE,
  59
  60     CTI_CHAR_ARRAY_TYPE,
  61     CTI_WCHAR_ARRAY_TYPE,
  62     CTI_INT_ARRAY_TYPE,
  63     CTI_STRING_TYPE,
  64     CTI_CONST_STRING_TYPE,
  65
  66     CTI_CONST_PTR_TYPE,
  67     CTI_PTRDIFF_TYPE,
  68
  69     CTI_BOOLEAN_TYPE,
  70     CTI_BOOLEAN_TRUE,
  71     CTI_BOOLEAN_FALSE,
  72     CTI_DEFAULT_FUNCTION_TYPE,
  73     CTI_VOID_LIST,
  74
  75     CTI_VOID_FTYPE,
  76     CTI_VOID_FTYPE_PTR,
  77     CTI_INT_FTYPE_INT,
  78     CTI_PTR_FTYPE_SIZETYPE,
  79
  80     CTI_MAX
  81 };
  82
  83 extern tree c_global_trees[CTI_MAX];
  84
  85 #define intQI_type_node                 c_global_trees[CTI_INTQI_TYPE]
  86 #define intHI_type_node                 c_global_trees[CTI_INTHI_TYPE]
  87 #define intSI_type_node                 c_global_trees[CTI_INTSI_TYPE]
  88 #define intDI_type_node                 c_global_trees[CTI_INTDI_TYPE]
  89 #if HOST_BITS_PER_WIDE_INT >= 64
  90 #define intTI_type_node                 c_global_trees[CTI_INTTI_TYPE]
  91 #endif
  92
  93 #define unsigned_intQI_type_node        c_global_trees[CTI_UINTQI_TYPE]
  94 #define unsigned_intHI_type_node        c_global_trees[CTI_UINTHI_TYPE]
  95 #define unsigned_intSI_type_node        c_global_trees[CTI_UINTSI_TYPE]
  96 #define unsigned_intDI_type_node        c_global_trees[CTI_UINTDI_TYPE]
  97 #if HOST_BITS_PER_WIDE_INT >= 64
  98 #define unsigned_intTI_type_node        c_global_trees[CTI_UINTTI_TYPE]
  99 #endif
 100
 101 #define signed_char_type_node           c_global_trees[CTI_SIGNED_CHAR_TYPE]
 102 #define unsigned_char_type_node         c_global_trees[CTI_UNSIGNED_CHAR_TYPE]
 103 #define wchar_type_node                 c_global_trees[CTI_WCHAR_TYPE]
 104 #define signed_wchar_type_node          c_global_trees[CTI_SIGNED_WCHAR_TYPE]
 105 #define unsigned_wchar_type_node        c_global_trees[CTI_UNSIGNED_WCHAR_TYPE]
 106 #define short_integer_type_node         c_global_trees[CTI_SHORT_INTEGER_TYPE]
 107 #define short_unsigned_type_node        c_global_trees[CTI_SHORT_UNSIGNED_TYPE]
 108 #define long_integer_type_node          c_global_trees[CTI_LONG_INTEGER_TYPE]
 109 #define long_unsigned_type_node         c_global_trees[CTI_LONG_UNSIGNED_TYPE]
 110 #define long_long_integer_type_node     c_global_trees[CTI_LONG_LONG_INTEGER_TYPE]
 111 #define long_long_unsigned_type_node    c_global_trees[CTI_LONG_LONG_UNSIGNED_TYPE]
 112 #define widest_integer_literal_type_node c_global_trees[CTI_WIDEST_INT_LIT_TYPE]
 113 #define widest_unsigned_literal_type_node c_global_trees[CTI_WIDEST_UINT_LIT_TYPE]
 114
 115 #define float_type_node                 c_global_trees[CTI_FLOAT_TYPE]
 116 #define double_type_node                c_global_trees[CTI_DOUBLE_TYPE]
 117 #define long_double_type_node           c_global_trees[CTI_LONG_DOUBLE_TYPE]
 118
 119 #define complex_integer_type_node       c_global_trees[CTI_COMPLEX_INTEGER_TYPE]
 120 #define complex_float_type_node         c_global_trees[CTI_COMPLEX_FLOAT_TYPE]
 121 #define complex_double_type_node        c_global_trees[CTI_COMPLEX_DOUBLE_TYPE]
 122 #define complex_long_double_type_node   c_global_trees[CTI_COMPLEX_LONG_DOUBLE_TYPE]
 123
 124 #define boolean_type_node               c_global_trees[CTI_BOOLEAN_TYPE]
 125 #define boolean_true_node               c_global_trees[CTI_BOOLEAN_TRUE]
 126 #define boolean_false_node              c_global_trees[CTI_BOOLEAN_FALSE]
 127
 128 #define const_ptr_type_node             c_global_trees[CTI_CONST_PTR_TYPE]
 129 #define ptrdiff_type_node               c_global_trees[CTI_PTRDIFF_TYPE]
 130
 131 #define char_array_type_node            c_global_trees[CTI_CHAR_ARRAY_TYPE]
 132 #define wchar_array_type_node           c_global_trees[CTI_WCHAR_ARRAY_TYPE]
 133 #define int_array_type_node             c_global_trees[CTI_INT_ARRAY_TYPE]
 134 #define string_type_node                c_global_trees[CTI_STRING_TYPE]
 135 #define const_string_type_node          c_global_trees[CTI_CONST_STRING_TYPE]
 136
 137 #define default_function_type           c_global_trees[CTI_DEFAULT_FUNCTION_TYPE]
 138 #define void_list_node                  c_global_trees[CTI_VOID_LIST]
 139 #define void_ftype                      c_global_trees[CTI_VOID_FTYPE]
 140 #define void_ftype_ptr                  c_global_trees[CTI_VOID_FTYPE_PTR]
 141 #define int_ftype_int                   c_global_trees[CTI_INT_FTYPE_INT]
 142 #define ptr_ftype_sizetype              c_global_trees[CTI_PTR_FTYPE_SIZETYPE]
 143
 144 extern void declare_function_name               PROTO((void));
 145 extern void decl_attributes                     PROTO((tree, tree, tree));
 146 extern void init_function_format_info           PROTO((void));
 147 extern void check_function_format               PROTO((tree, tree, tree));
 148 extern void c_apply_type_quals_to_decl          PROTO((int, tree));
 149 extern int c_get_alias_set                      PROTO((tree));
 150 /* Print an error message for invalid operands to arith operation CODE.
 151    NOP_EXPR is used as a special case (see truthvalue_conversion).  */
 152 extern void binary_op_error                     PROTO((enum tree_code));
 153 extern void c_expand_expr_stmt                  PROTO((tree));
 154 extern void c_expand_start_cond                 PROTO((tree, int, int));
 155 extern void c_expand_start_else                 PROTO((void));
 156 extern void c_expand_end_cond                   PROTO((void));
 157 /* Validate the expression after `case' and apply default promotions.  */
 158 extern tree check_case_value                    PROTO((tree));
 159 /* Concatenate a list of STRING_CST nodes into one STRING_CST.  */
 160 extern tree combine_strings                     PROTO((tree));
 161 extern void constant_expression_warning         PROTO((tree));
 162 extern tree convert_and_check                   PROTO((tree, tree));
 163 extern void overflow_warning                    PROTO((tree));
 164 extern void unsigned_conversion_warning         PROTO((tree, tree));
 165 /* Read the rest of the current #-directive line.  */
 166 #if USE_CPPLIB
 167 extern char *get_directive_line                 PROTO((void));
 168 #define GET_DIRECTIVE_LINE() get_directive_line ()
 169 #else
 170 extern char *get_directive_line                 PROTO((FILE *));
 171 #define GET_DIRECTIVE_LINE() get_directive_line (finput)
 172 #endif
 173
 174 /* Subroutine of build_binary_op, used for comparison operations.
 175    See if the operands have both been converted from subword integer types
 176    and, if so, perhaps change them both back to their original type.  */
 177 extern tree shorten_compare                     PROTO((tree *, tree *, tree *, enum tree_code *));
 178 /* Prepare expr to be an argument of a TRUTH_NOT_EXPR,
 179    or validate its data type for an `if' or `while' statement or ?..: exp. */
 180 extern tree truthvalue_conversion               PROTO((tree));
 181 extern tree type_for_mode                       PROTO((enum machine_mode, int));
 182 extern tree type_for_size                       PROTO((unsigned, int));
 183
 184 /* Declare a predefined function.  Return the declaration.  This function is
 185    provided by each language frontend.  */
 186 extern tree builtin_function                    PROTO((const char *, tree, enum built_in_function, const char *));
 187
 188 /* Build tree nodes and builtin functions common to both C and C++ language
 189    frontends.  */
 190 extern void c_common_nodes_and_builtins         PROTO((int, int, int));
 191
 192 extern tree build_va_arg                        PROTO((tree, tree));
 193
 194 extern tree initializer_constant_valid_p        PROTO((tree, tree));