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
10This file is part of GCC.
11
12GCC is free software; you can redistribute it and/or modify
13it under the terms of the GNU General Public License as published by
14the Free Software Foundation; either version 3, or (at your option)
15any later version.
16
17GCC is distributed in the hope that it will be useful,
18but WITHOUT ANY WARRANTY; without even the implied warranty of
19MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20GNU General Public License for more details.
21
22You should have received a copy of the GNU General Public License
23along 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 FLAGS
49
50 ovl_op_flags bits. Postincrement and postdecrement operators are
51 marked as binary.
52
53 Before including this file, you should define DEF_OPERATOR
54 to take these arguments.
55
56 There is code (such as in grok_op_properties) that depends on the
57 order the operators are presented in this file. Unary_ops must
58 preceed a matching binary op (i.e. '+'). Assignment operators must
59 be last, after OPERATOR_TRANSITION. */
60
61/* Use DEF_ASSN_OPERATOR to define an assignment operator. Its
62 arguments are as for DEF_OPERATOR, but there is no need to provide
63 FLAGS (OVL_OP_FLAG_BINARY). */
64
65#ifndef DEF_ASSN_OPERATOR
66#define DEF_ASSN_OPERATOR(NAME, CODE, MANGLING) \
67 DEF_OPERATOR(NAME, CODE, MANGLING, OVL_OP_FLAG_BINARY)
68#endif
69
70/* Memory allocation operators. ARITY has special meaning. */
71DEF_OPERATOR ("new", NEW_EXPR, "nw", OVL_OP_FLAG_ALLOC)
72DEF_OPERATOR ("new []", VEC_NEW_EXPR, "na",
73 OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_VEC)
74DEF_OPERATOR ("delete", DELETE_EXPR, "dl",
75 OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE)
76DEF_OPERATOR ("delete []", VEC_DELETE_EXPR, "da",
77 OVL_OP_FLAG_ALLOC | OVL_OP_FLAG_DELETE | OVL_OP_FLAG_VEC)
78
79/* Unary operators. */
80DEF_OPERATOR ("+", UNARY_PLUS_EXPR, "ps", OVL_OP_FLAG_UNARY)
81DEF_OPERATOR ("-", NEGATE_EXPR, "ng", OVL_OP_FLAG_UNARY)
82DEF_OPERATOR ("&", ADDR_EXPR, "ad", OVL_OP_FLAG_UNARY)
83DEF_OPERATOR ("*", INDIRECT_REF, "de", OVL_OP_FLAG_UNARY)
84DEF_OPERATOR ("~", BIT_NOT_EXPR, "co", OVL_OP_FLAG_UNARY)
85DEF_OPERATOR ("!", TRUTH_NOT_EXPR, "nt", OVL_OP_FLAG_UNARY)
86DEF_OPERATOR ("++", PREINCREMENT_EXPR, "pp", OVL_OP_FLAG_UNARY)
87DEF_OPERATOR ("--", PREDECREMENT_EXPR, "mm", OVL_OP_FLAG_UNARY)
88DEF_OPERATOR ("->", COMPONENT_REF, "pt", OVL_OP_FLAG_UNARY)
89DEF_OPERATOR ("sizeof", SIZEOF_EXPR, "sz", OVL_OP_FLAG_UNARY)
90
91/* These are extensions. */
92DEF_OPERATOR ("alignof", ALIGNOF_EXPR, "az", OVL_OP_FLAG_UNARY)
93DEF_OPERATOR ("__imag__", IMAGPART_EXPR, "v18__imag__", OVL_OP_FLAG_UNARY)
94DEF_OPERATOR ("__real__", REALPART_EXPR, "v18__real__", OVL_OP_FLAG_UNARY)
95
96/* Binary operators. */
97DEF_OPERATOR ("+", PLUS_EXPR, "pl", OVL_OP_FLAG_BINARY)
98DEF_OPERATOR ("-", MINUS_EXPR, "mi", OVL_OP_FLAG_BINARY)
99DEF_OPERATOR ("*", MULT_EXPR, "ml", OVL_OP_FLAG_BINARY)
100DEF_OPERATOR ("/", TRUNC_DIV_EXPR, "dv", OVL_OP_FLAG_BINARY)
101DEF_OPERATOR ("%", TRUNC_MOD_EXPR, "rm", OVL_OP_FLAG_BINARY)
102DEF_OPERATOR ("&", BIT_AND_EXPR, "an", OVL_OP_FLAG_BINARY)
103DEF_OPERATOR ("|", BIT_IOR_EXPR, "or", OVL_OP_FLAG_BINARY)
104DEF_OPERATOR ("^", BIT_XOR_EXPR, "eo", OVL_OP_FLAG_BINARY)
105DEF_OPERATOR ("<<", LSHIFT_EXPR, "ls", OVL_OP_FLAG_BINARY)
106DEF_OPERATOR (">>", RSHIFT_EXPR, "rs", OVL_OP_FLAG_BINARY)
107DEF_OPERATOR ("==", EQ_EXPR, "eq", OVL_OP_FLAG_BINARY)
108DEF_OPERATOR ("!=", NE_EXPR, "ne", OVL_OP_FLAG_BINARY)
109DEF_OPERATOR ("<", LT_EXPR, "lt", OVL_OP_FLAG_BINARY)
110DEF_OPERATOR (">", GT_EXPR, "gt", OVL_OP_FLAG_BINARY)
111DEF_OPERATOR ("<=", LE_EXPR, "le", OVL_OP_FLAG_BINARY)
112DEF_OPERATOR (">=", GE_EXPR, "ge", OVL_OP_FLAG_BINARY)
113DEF_OPERATOR ("&&", TRUTH_ANDIF_EXPR, "aa", OVL_OP_FLAG_BINARY)
114DEF_OPERATOR ("||", TRUTH_ORIF_EXPR, "oo", OVL_OP_FLAG_BINARY)
115DEF_OPERATOR (",", COMPOUND_EXPR, "cm", OVL_OP_FLAG_BINARY)
116DEF_OPERATOR ("->*", MEMBER_REF, "pm", OVL_OP_FLAG_BINARY)
117DEF_OPERATOR (".*", DOTSTAR_EXPR, "ds", OVL_OP_FLAG_BINARY)
118DEF_OPERATOR ("[]", ARRAY_REF, "ix", OVL_OP_FLAG_BINARY)
119DEF_OPERATOR ("++", POSTINCREMENT_EXPR, "pp", OVL_OP_FLAG_BINARY)
120DEF_OPERATOR ("--", POSTDECREMENT_EXPR, "mm", OVL_OP_FLAG_BINARY)
121
122/* Miscellaneous. */
123DEF_OPERATOR ("?:", COND_EXPR, "qu", OVL_OP_FLAG_NONE)
124DEF_OPERATOR ("()", CALL_EXPR, "cl", OVL_OP_FLAG_NONE)
125
126/* Operators needed for mangling. */
127DEF_OPERATOR (NULL, CAST_EXPR, "cv", OVL_OP_FLAG_UNARY)
128DEF_OPERATOR (NULL, DYNAMIC_CAST_EXPR, "dc", OVL_OP_FLAG_UNARY)
129DEF_OPERATOR (NULL, REINTERPRET_CAST_EXPR, "rc", OVL_OP_FLAG_UNARY)
130DEF_OPERATOR (NULL, CONST_CAST_EXPR, "cc", OVL_OP_FLAG_UNARY)
131DEF_OPERATOR (NULL, STATIC_CAST_EXPR, "sc", OVL_OP_FLAG_UNARY)
132DEF_OPERATOR (NULL, SCOPE_REF, "sr", OVL_OP_FLAG_NONE)
133DEF_OPERATOR (NULL, EXPR_PACK_EXPANSION, "sp", OVL_OP_FLAG_NONE)
134DEF_OPERATOR (NULL, UNARY_LEFT_FOLD_EXPR, "fl", OVL_OP_FLAG_NONE)
135DEF_OPERATOR (NULL, UNARY_RIGHT_FOLD_EXPR, "fr", OVL_OP_FLAG_NONE)
136DEF_OPERATOR (NULL, BINARY_LEFT_FOLD_EXPR, "fL", OVL_OP_FLAG_NONE)
137DEF_OPERATOR (NULL, BINARY_RIGHT_FOLD_EXPR, "fR", OVL_OP_FLAG_NONE)
138
139#ifdef OPERATOR_TRANSITION
140OPERATOR_TRANSITION
141#undef OPERATOR_TRANSITION
142#endif
143
144/* Assignment operators. */
145DEF_ASSN_OPERATOR ("=", NOP_EXPR, "aS")
146DEF_ASSN_OPERATOR ("+=", PLUS_EXPR, "pL")
147DEF_ASSN_OPERATOR ("-=", MINUS_EXPR, "mI")
148DEF_ASSN_OPERATOR ("*=", MULT_EXPR, "mL")
149DEF_ASSN_OPERATOR ("/=", TRUNC_DIV_EXPR, "dV")
150DEF_ASSN_OPERATOR ("%=", TRUNC_MOD_EXPR, "rM")
151DEF_ASSN_OPERATOR ("&=", BIT_AND_EXPR, "aN")
152DEF_ASSN_OPERATOR ("|=", BIT_IOR_EXPR, "oR")
153DEF_ASSN_OPERATOR ("^=", BIT_XOR_EXPR, "eO")
154DEF_ASSN_OPERATOR ("<<=", LSHIFT_EXPR, "lS")
155DEF_ASSN_OPERATOR (">>=", RSHIFT_EXPR, "rS")
156
157#undef DEF_ASSN_OPERATOR
158#undef DEF_OPERATOR
159