/* -*-C-*-
-
+
This file contains definitions of the various C++ operators,
including both overloadable operators (like `+') and
- non-overloadable operators (like the `?:' ternary operator).
+ non-overloadable operators (like the `?:' ternary operator).
Written by Mark Mitchell <mark@codesourcery.com>
- Copyright (C) 2000, 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2000-2024 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 2, or (at your option)
+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,
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 COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
/* The DEF_OPERATOR macro takes the following arguments:
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,
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.
+ FLAGS
- ASSN_P
+ ovl_op_flags bits. Postincrement and postdecrement operators are
+ marked as binary.
- A boolean value. If nonzero, this is an assignment operator.
-
- Before including this file, you should define DEFOPERATOR
- to take these arguments.
+ 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, 0)
+ order the operators are presented in this file. Unary_ops must
+ preceed a matching binary op (i.e. '+'). Assignment operators must
+ be last, after OPERATOR_TRANSITION. */
/* 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, 1)
-
-/* Memory allocation operators. */
-DEF_SIMPLE_OPERATOR ("new", NEW_EXPR, "nw", -1)
-DEF_SIMPLE_OPERATOR ("new []", VEC_NEW_EXPR, "na", -1)
-DEF_SIMPLE_OPERATOR ("delete", DELETE_EXPR, "dl", -1)
-DEF_SIMPLE_OPERATOR ("delete []", VEC_DELETE_EXPR, "da", -1)
+ FLAGS (OVL_OP_FLAG_BINARY). */
+
+#ifndef DEF_ASSN_OPERATOR
+#define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) \
+ DEF_OPERATOR(NAME, CODE, MANGLING, OVL_OP_FLAG_BINARY)
+#endif
+
+/* Memory allocation operators. ARITY has special meaning. */
+DEF_OPERATOR ("new", NEW_EXPR, "nw", OVL_OP_FLAG_ALLOC)
+DEF_OPERATOR ("new []", VEC_NEW_EXPR, "na",
+ OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_VEC)
+DEF_OPERATOR ("delete", DELETE_EXPR, "dl",
+ OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)
+DEF_OPERATOR ("delete []", VEC_DELETE_EXPR, "da",
+ OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE | OVL_OP_FLAG_VEC)
/* 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, "v17alignof", 1)
-DEF_SIMPLE_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", 1)
-DEF_SIMPLE_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", 1)
+DEF_OPERATOR ("+", UNARY_PLUS_EXPR, "ps", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("-", NEGATE_EXPR, "ng", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("&", ADDR_EXPR, "ad", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("*", INDIRECT_REF, "de", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("~", BIT_NOT_EXPR, "co", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("!", TRUTH_NOT_EXPR, "nt", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("++", PREINCREMENT_EXPR, "pp", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("--", PREDECREMENT_EXPR, "mm", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("->", COMPONENT_REF, "pt", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("co_await", CO_AWAIT_EXPR, "aw", OVL_OP_FLAG_UNARY)
-/* The cast operator. */
-DEF_SIMPLE_OPERATOR ("", TYPE_EXPR, "cv", 1)
-DEF_SIMPLE_OPERATOR ("", CAST_EXPR, "cv", 1)
-DEF_SIMPLE_OPERATOR ("", CONST_CAST_EXPR, "cv", 1)
-DEF_SIMPLE_OPERATOR ("", STATIC_CAST_EXPR, "cv", 1)
+/* These are extensions. */
+DEF_OPERATOR ("alignof", ALIGNOF_EXPR, "az", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", OVL_OP_FLAG_UNARY)
/* 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 ("->", 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)
-/* These operators are GNU extensions. */
-DEF_SIMPLE_OPERATOR ("<?", MIN_EXPR, "v23min", 2)
-DEF_SIMPLE_OPERATOR (">?", MAX_EXPR, "v23max", 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)
-/* These operators are GNU extensions. */
-DEF_ASSN_OPERATOR ("<?=", MIN_EXPR, "v23miN", 2)
-DEF_ASSN_OPERATOR (">?=", MAX_EXPR, "v23maX", 2)
-
-/* Ternary operators. */
-DEF_SIMPLE_OPERATOR ("?:", COND_EXPR, "qu", 3)
+DEF_OPERATOR ("+", PLUS_EXPR, "pl", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("-", MINUS_EXPR, "mi", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("*", MULT_EXPR, "ml", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("/", TRUNC_DIV_EXPR, "dv", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("%", TRUNC_MOD_EXPR, "rm", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("&", BIT_AND_EXPR, "an", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("|", BIT_IOR_EXPR, "or", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("^", BIT_XOR_EXPR, "eo", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("<<", LSHIFT_EXPR, "ls", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (">>", RSHIFT_EXPR, "rs", OVL_OP_FLAG_BINARY)
+
+/* defaultable_fn_check relies on the ordering of the comparison operators. */
+DEF_OPERATOR ("==", EQ_EXPR, "eq", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("!=", NE_EXPR, "ne", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("<", LT_EXPR, "lt", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (">", GT_EXPR, "gt", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("<=", LE_EXPR, "le", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (">=", GE_EXPR, "ge", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("<=>", SPACESHIP_EXPR, "ss", OVL_OP_FLAG_BINARY)
+
+DEF_OPERATOR ("&&", TRUTH_ANDIF_EXPR, "aa", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("||", TRUTH_ORIF_EXPR, "oo", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (",", COMPOUND_EXPR, "cm", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("->*", MEMBER_REF, "pm", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR (".*", DOTSTAR_EXPR, "ds", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("[]", ARRAY_REF, "ix", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", OVL_OP_FLAG_BINARY)
+DEF_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", OVL_OP_FLAG_BINARY)
/* Miscellaneous. */
-DEF_SIMPLE_OPERATOR ("()", CALL_EXPR, "cl", -1)
+DEF_OPERATOR ("?:", COND_EXPR, "qu", OVL_OP_FLAG_NONE)
+DEF_OPERATOR ("()", CALL_EXPR, "cl", OVL_OP_FLAG_NONE)
+
+/* Operators needed for mangling. */
+DEF_OPERATOR (NULL, CAST_EXPR, "cv", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, DYNAMIC_CAST_EXPR, "dc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, REINTERPRET_CAST_EXPR, "rc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, CONST_CAST_EXPR, "cc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, STATIC_CAST_EXPR, "sc", OVL_OP_FLAG_UNARY)
+DEF_OPERATOR (NULL, SCOPE_REF, "sr", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, EXPR_PACK_EXPANSION, "sp", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, UNARY_LEFT_FOLD_EXPR, "fl", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, UNARY_RIGHT_FOLD_EXPR, "fr", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, BINARY_LEFT_FOLD_EXPR, "fL", OVL_OP_FLAG_NONE)
+DEF_OPERATOR (NULL, BINARY_RIGHT_FOLD_EXPR, "fR", OVL_OP_FLAG_NONE)
+
+#ifdef OPERATOR_TRANSITION
+OPERATOR_TRANSITION
+#undef OPERATOR_TRANSITION
+#endif
+
+/* Assignment operators. */
+DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS")
+DEF_ASSN_OPERATOR ("+=", PLUS_EXPR, "pL")
+DEF_ASSN_OPERATOR ("-=", MINUS_EXPR, "mI")
+DEF_ASSN_OPERATOR ("*=", MULT_EXPR, "mL")
+DEF_ASSN_OPERATOR ("/=", TRUNC_DIV_EXPR, "dV")
+DEF_ASSN_OPERATOR ("%=", TRUNC_MOD_EXPR, "rM")
+DEF_ASSN_OPERATOR ("&=", BIT_AND_EXPR, "aN")
+DEF_ASSN_OPERATOR ("|=", BIT_IOR_EXPR, "oR")
+DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO")
+DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS")
+DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS")
+
+#undef DEF_ASSN_OPERATOR
+#undef DEF_OPERATOR
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