gcc/cp/operators.def

   1 /* -*-C-*-
   2
   3    This file contains definitions of the various C++ operators,
   4    including both overloadable operators (like `+') and
   5    non-overloadable operators (like the `?:' ternary operator).
   6    Written by Mark Mitchell <mark@codesourcery.com>
   7
   8    Copyright (C) 2000-2017 Free Software Foundation, Inc.
   9
  10 This file is part of GCC.
  11
  12 GCC is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 3, or (at your option)
  15 any later version.
  16
  17 GCC is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with GCC; see the file COPYING3.  If not see
  24 <http://www.gnu.org/licenses/>.  */
  25
  26 /* The DEF_OPERATOR macro takes the following arguments:
  27
  28    NAME
  29
  30      The name of the operator, as a C string, but without the
  31      preceding `operator'.  This is the name that would be given in
  32      the source program.  For `operator +', for example, this would be
  33      `+'.
  34
  35    CODE
  36
  37      The tree_code for this operator.  For `operator +', for example,
  38      this would be PLUS_EXPR.  Because there are no tree codes for
  39      assignment operators, the same tree-codes are reused; i.e.,
  40      `operator +' will also have PLUS_EXPR as its CODE.
  41
  42    MANGLING
  43
  44      The mangling prefix for the operator, as a C string, and as
  45      mangled under the new ABI.  For `operator +', for example, this
  46      would be "pl".
  47
  48    ARITY
  49
  50      The arity of the operator, or -1 if any arity is allowed.  (As
  51      for `operator ()'.)  Postincrement and postdecrement operators
  52      are marked as binary.
  53
  54    ASSN_P
  55
  56      A boolean value.  If nonzero, this is an assignment operator.
  57
  58    Before including this file, you should define DEF_OPERATOR
  59    to take these arguments.
  60
  61    There is code (such as in grok_op_properties) that depends on the
  62    order the operators are presented in this file.  In particular,
  63    unary operators must precede binary operators.  */
  64
  65 /* Use DEF_SIMPLE_OPERATOR to define a non-assignment operator.  Its
  66    arguments are as for DEF_OPERATOR, but there is no need to provide
  67    an ASSIGNMENT_P argument; it is always zero.  */
  68
  69 #define DEF_SIMPLE_OPERATOR(NAME, CODE, MANGLING, ARITY) \
  70   DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, cik_simple_op)
  71
  72 /* Use DEF_ASSN_OPERATOR to define an assignment operator.  Its
  73    arguments are as for DEF_OPERATOR, but there is no need to provide
  74    an ASSIGNMENT_P argument; it is always one.  */
  75
  76 #define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING, ARITY) \
  77   DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, cik_assign_op)
  78
  79 /* Memory allocation operators.  */
  80 DEF_OPERATOR ("new", NEW_EXPR, "nw", -1, cik_newdel_op)
  81 DEF_OPERATOR ("new []", VEC_NEW_EXPR, "na", -1, cik_newdel_op)
  82 DEF_OPERATOR ("delete", DELETE_EXPR, "dl", -1, cik_newdel_op)
  83 DEF_OPERATOR ("delete []", VEC_DELETE_EXPR, "da", -1, cik_newdel_op)
  84
  85 /* Unary operators.  */
  86 DEF_SIMPLE_OPERATOR ("+", UNARY_PLUS_EXPR, "ps", 1)
  87 DEF_SIMPLE_OPERATOR ("-", NEGATE_EXPR, "ng", 1)
  88 DEF_SIMPLE_OPERATOR ("&", ADDR_EXPR, "ad", 1)
  89 DEF_SIMPLE_OPERATOR ("*", INDIRECT_REF, "de", 1)
  90 DEF_SIMPLE_OPERATOR ("~", BIT_NOT_EXPR, "co", 1)
  91 DEF_SIMPLE_OPERATOR ("!", TRUTH_NOT_EXPR, "nt", 1)
  92 DEF_SIMPLE_OPERATOR ("++", PREINCREMENT_EXPR, "pp", 1)
  93 DEF_SIMPLE_OPERATOR ("--", PREDECREMENT_EXPR, "mm", 1)
  94 DEF_SIMPLE_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", 1)
  95 /* These are extensions.  */
  96 DEF_SIMPLE_OPERATOR ("alignof", ALIGNOF_EXPR, "az", 1)
  97 DEF_SIMPLE_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", 1)
  98 DEF_SIMPLE_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", 1)
  99
 100 /* The cast operators.  */
 101 DEF_SIMPLE_OPERATOR ("", CAST_EXPR, "cv", 1)
 102 DEF_SIMPLE_OPERATOR ("dynamic_cast", DYNAMIC_CAST_EXPR, "dc", 1)
 103 DEF_SIMPLE_OPERATOR ("reinterpret_cast", REINTERPRET_CAST_EXPR, "rc", 1)
 104 DEF_SIMPLE_OPERATOR ("const_cast", CONST_CAST_EXPR, "cc", 1)
 105 DEF_SIMPLE_OPERATOR ("static_cast", STATIC_CAST_EXPR, "sc", 1)
 106
 107 /* Binary operators.  */
 108 DEF_SIMPLE_OPERATOR ("+", PLUS_EXPR, "pl", 2)
 109 DEF_SIMPLE_OPERATOR ("-", MINUS_EXPR, "mi", 2)
 110 DEF_SIMPLE_OPERATOR ("*", MULT_EXPR, "ml", 2)
 111 DEF_SIMPLE_OPERATOR ("/", TRUNC_DIV_EXPR, "dv", 2)
 112 DEF_SIMPLE_OPERATOR ("%", TRUNC_MOD_EXPR, "rm", 2)
 113 DEF_SIMPLE_OPERATOR ("&", BIT_AND_EXPR, "an", 2)
 114 DEF_SIMPLE_OPERATOR ("|", BIT_IOR_EXPR, "or", 2)
 115 DEF_SIMPLE_OPERATOR ("^", BIT_XOR_EXPR, "eo", 2)
 116 DEF_SIMPLE_OPERATOR ("<<", LSHIFT_EXPR, "ls", 2)
 117 DEF_SIMPLE_OPERATOR (">>", RSHIFT_EXPR, "rs", 2)
 118 DEF_SIMPLE_OPERATOR ("==", EQ_EXPR, "eq", 2)
 119 DEF_SIMPLE_OPERATOR ("!=", NE_EXPR, "ne", 2)
 120 DEF_SIMPLE_OPERATOR ("<", LT_EXPR, "lt", 2)
 121 DEF_SIMPLE_OPERATOR (">", GT_EXPR, "gt", 2)
 122 DEF_SIMPLE_OPERATOR ("<=", LE_EXPR, "le", 2)
 123 DEF_SIMPLE_OPERATOR (">=", GE_EXPR, "ge", 2)
 124 DEF_SIMPLE_OPERATOR ("&&", TRUTH_ANDIF_EXPR, "aa", 2)
 125 DEF_SIMPLE_OPERATOR ("||", TRUTH_ORIF_EXPR, "oo", 2)
 126 DEF_SIMPLE_OPERATOR (",", COMPOUND_EXPR, "cm", 2)
 127 DEF_SIMPLE_OPERATOR ("->*", MEMBER_REF, "pm", 2)
 128 DEF_SIMPLE_OPERATOR (".*", DOTSTAR_EXPR, "ds", 2)
 129 DEF_SIMPLE_OPERATOR ("->", COMPONENT_REF, "pt", 2)
 130 DEF_SIMPLE_OPERATOR ("[]", ARRAY_REF, "ix", 2)
 131 DEF_SIMPLE_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", 2)
 132 DEF_SIMPLE_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", 2)
 133 /* This one is needed for mangling.  */
 134 DEF_SIMPLE_OPERATOR ("::", SCOPE_REF, "sr", 2)
 135
 136 /* Assignment operators.  */
 137 DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS", 2)
 138 DEF_ASSN_OPERATOR ("+=", PLUS_EXPR, "pL", 2)
 139 DEF_ASSN_OPERATOR ("-=", MINUS_EXPR, "mI", 2)
 140 DEF_ASSN_OPERATOR ("*=", MULT_EXPR, "mL", 2)
 141 DEF_ASSN_OPERATOR ("/=", TRUNC_DIV_EXPR, "dV", 2)
 142 DEF_ASSN_OPERATOR ("%=", TRUNC_MOD_EXPR, "rM", 2)
 143 DEF_ASSN_OPERATOR ("&=", BIT_AND_EXPR, "aN", 2)
 144 DEF_ASSN_OPERATOR ("|=", BIT_IOR_EXPR, "oR", 2)
 145 DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO", 2)
 146 DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS", 2)
 147 DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS", 2)
 148
 149 /* Ternary operators.  */
 150 DEF_SIMPLE_OPERATOR ("?:", COND_EXPR, "qu", 3)
 151
 152 /* Miscellaneous.  */
 153 DEF_SIMPLE_OPERATOR ("()", CALL_EXPR, "cl", -1)
 154
 155 /* Variadic templates extension. */
 156 DEF_SIMPLE_OPERATOR ("...", EXPR_PACK_EXPANSION, "sp", 1)
 157 DEF_SIMPLE_OPERATOR ("... +", UNARY_LEFT_FOLD_EXPR, "fl", 2)
 158 DEF_SIMPLE_OPERATOR ("+ ...", UNARY_RIGHT_FOLD_EXPR, "fr", 2)
 159 DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_LEFT_FOLD_EXPR, "fL", 3)
 160 DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_RIGHT_FOLD_EXPR, "fR", 3)