/* -*-C-*-

   This file contains definitions of the various C++ operators,
   including both overloadable operators (like `+') and
   non-overloadable operators (like the `?:' ternary operator).
   Written by Mark Mitchell <mark@codesourcery.com>

   Copyright (C) 2000-2017 Free Software Foundation, Inc.

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.

GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

/* The DEF_OPERATOR macro takes the following arguments:

   NAME

     The name of the operator, as a C string, but without the
     preceding `operator'.  This is the name that would be given in
     the source program.  For `operator +', for example, this would be
     `+'.

   CODE

     The tree_code for this operator.  For `operator +', for example,
     this would be PLUS_EXPR.  Because there are no tree codes for
     assignment operators, the same tree-codes are reused; i.e.,
     `operator +' will also have PLUS_EXPR as its CODE.

   MANGLING

     The mangling prefix for the operator, as a C string, and as
     mangled under the new ABI.  For `operator +', for example, this
     would be "pl".

   ARITY

     The arity of the operator, or -1 if any arity is allowed.  (As
     for `operator ()'.)  Postincrement and postdecrement operators
     are marked as binary.

   ASSN_P

     A boolean value.  If nonzero, this is an assignment operator.

   Before including this file, you should define DEF_OPERATOR
   to take these arguments.

   There is code (such as in grok_op_properties) that depends on the
   order the operators are presented in this file.  In particular,
   unary operators must precede binary operators.  */

/* Use DEF_SIMPLE_OPERATOR to define a non-assignment operator.  Its
   arguments are as for DEF_OPERATOR, but there is no need to provide
   an ASSIGNMENT_P argument; it is always zero.  */

#define DEF_SIMPLE_OPERATOR(NAME, CODE, MANGLING, ARITY) \
  DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, cik_simple_op)

/* Use DEF_ASSN_OPERATOR to define an assignment operator.  Its
   arguments are as for DEF_OPERATOR, but there is no need to provide
   an ASSIGNMENT_P argument; it is always one.  */

#define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING, ARITY) \
  DEF_OPERATOR(NAME, CODE, MANGLING, ARITY, cik_assign_op)

/* Memory allocation operators.  */
DEF_OPERATOR ("new", NEW_EXPR, "nw", -1, cik_newdel_op)
DEF_OPERATOR ("new []", VEC_NEW_EXPR, "na", -1, cik_newdel_op)
DEF_OPERATOR ("delete", DELETE_EXPR, "dl", -1, cik_newdel_op)
DEF_OPERATOR ("delete []", VEC_DELETE_EXPR, "da", -1, cik_newdel_op)

/* Unary operators.  */
DEF_SIMPLE_OPERATOR ("+", UNARY_PLUS_EXPR, "ps", 1)
DEF_SIMPLE_OPERATOR ("-", NEGATE_EXPR, "ng", 1)
DEF_SIMPLE_OPERATOR ("&", ADDR_EXPR, "ad", 1)
DEF_SIMPLE_OPERATOR ("*", INDIRECT_REF, "de", 1)
DEF_SIMPLE_OPERATOR ("~", BIT_NOT_EXPR, "co", 1)
DEF_SIMPLE_OPERATOR ("!", TRUTH_NOT_EXPR, "nt", 1)
DEF_SIMPLE_OPERATOR ("++", PREINCREMENT_EXPR, "pp", 1)
DEF_SIMPLE_OPERATOR ("--", PREDECREMENT_EXPR, "mm", 1)
DEF_SIMPLE_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", 1)
/* These are extensions.  */
DEF_SIMPLE_OPERATOR ("alignof", ALIGNOF_EXPR, "az", 1)
DEF_SIMPLE_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", 1)
DEF_SIMPLE_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", 1)

/* The cast operators.  */
DEF_SIMPLE_OPERATOR ("", CAST_EXPR, "cv", 1)
DEF_SIMPLE_OPERATOR ("dynamic_cast", DYNAMIC_CAST_EXPR, "dc", 1)
DEF_SIMPLE_OPERATOR ("reinterpret_cast", REINTERPRET_CAST_EXPR, "rc", 1)
DEF_SIMPLE_OPERATOR ("const_cast", CONST_CAST_EXPR, "cc", 1)
DEF_SIMPLE_OPERATOR ("static_cast", STATIC_CAST_EXPR, "sc", 1)

/* Binary operators.  */
DEF_SIMPLE_OPERATOR ("+", PLUS_EXPR, "pl", 2)
DEF_SIMPLE_OPERATOR ("-", MINUS_EXPR, "mi", 2)
DEF_SIMPLE_OPERATOR ("*", MULT_EXPR, "ml", 2)
DEF_SIMPLE_OPERATOR ("/", TRUNC_DIV_EXPR, "dv", 2)
DEF_SIMPLE_OPERATOR ("%", TRUNC_MOD_EXPR, "rm", 2)
DEF_SIMPLE_OPERATOR ("&", BIT_AND_EXPR, "an", 2)
DEF_SIMPLE_OPERATOR ("|", BIT_IOR_EXPR, "or", 2)
DEF_SIMPLE_OPERATOR ("^", BIT_XOR_EXPR, "eo", 2)
DEF_SIMPLE_OPERATOR ("<<", LSHIFT_EXPR, "ls", 2)
DEF_SIMPLE_OPERATOR (">>", RSHIFT_EXPR, "rs", 2)
DEF_SIMPLE_OPERATOR ("==", EQ_EXPR, "eq", 2)
DEF_SIMPLE_OPERATOR ("!=", NE_EXPR, "ne", 2)
DEF_SIMPLE_OPERATOR ("<", LT_EXPR, "lt", 2)
DEF_SIMPLE_OPERATOR (">", GT_EXPR, "gt", 2)
DEF_SIMPLE_OPERATOR ("<=", LE_EXPR, "le", 2)
DEF_SIMPLE_OPERATOR (">=", GE_EXPR, "ge", 2)
DEF_SIMPLE_OPERATOR ("&&", TRUTH_ANDIF_EXPR, "aa", 2)
DEF_SIMPLE_OPERATOR ("||", TRUTH_ORIF_EXPR, "oo", 2)
DEF_SIMPLE_OPERATOR (",", COMPOUND_EXPR, "cm", 2)
DEF_SIMPLE_OPERATOR ("->*", MEMBER_REF, "pm", 2)
DEF_SIMPLE_OPERATOR (".*", DOTSTAR_EXPR, "ds", 2)
DEF_SIMPLE_OPERATOR ("->", COMPONENT_REF, "pt", 2)
DEF_SIMPLE_OPERATOR ("[]", ARRAY_REF, "ix", 2)
DEF_SIMPLE_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", 2)
DEF_SIMPLE_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", 2)
/* This one is needed for mangling.  */
DEF_SIMPLE_OPERATOR ("::", SCOPE_REF, "sr", 2)

/* Assignment operators.  */
DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS", 2)
DEF_ASSN_OPERATOR ("+=", PLUS_EXPR, "pL", 2)
DEF_ASSN_OPERATOR ("-=", MINUS_EXPR, "mI", 2)
DEF_ASSN_OPERATOR ("*=", MULT_EXPR, "mL", 2)
DEF_ASSN_OPERATOR ("/=", TRUNC_DIV_EXPR, "dV", 2)
DEF_ASSN_OPERATOR ("%=", TRUNC_MOD_EXPR, "rM", 2)
DEF_ASSN_OPERATOR ("&=", BIT_AND_EXPR, "aN", 2)
DEF_ASSN_OPERATOR ("|=", BIT_IOR_EXPR, "oR", 2)
DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO", 2)
DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS", 2)
DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS", 2)

/* Ternary operators.  */
DEF_SIMPLE_OPERATOR ("?:", COND_EXPR, "qu", 3)

/* Miscellaneous.  */
DEF_SIMPLE_OPERATOR ("()", CALL_EXPR, "cl", -1)

/* Variadic templates extension. */
DEF_SIMPLE_OPERATOR ("...", EXPR_PACK_EXPANSION, "sp", 1)
DEF_SIMPLE_OPERATOR ("... +", UNARY_LEFT_FOLD_EXPR, "fl", 2)
DEF_SIMPLE_OPERATOR ("+ ...", UNARY_RIGHT_FOLD_EXPR, "fr", 2)
DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_LEFT_FOLD_EXPR, "fL", 3)
DEF_SIMPLE_OPERATOR ("+ ... +", BINARY_RIGHT_FOLD_EXPR, "fR", 3)