IntegerBitNot¶
Bitwise complement of an integer.
Declaration¶
Syntax¶
IntegerBitNot(expr arg, ttype type, expr? value)
Arguments¶
Argument |
Description |
|---|---|
|
the operand. |
|
the type of the expression. |
|
the compile time value of the expression, when the frontend could fold it; |
Return values¶
The value of the expression.
Description¶
IntegerBitNot is not(i): every bit of the operand is flipped. It is a
separate node from IntegerUnaryMinus because the two
differ by one for two’s complement integers, and because the bitwise operation
is meaningless for the other numeric types.
Examples¶
(IntegerBitNot
:arg (Var
:v (SymbolRef 1 "i")
)
:type (Integer
:kind 4
)
:value nil
)
It comes from this complete ASR text document:
(TranslationUnit
:symtab (SymbolTable
:id 0
:symbols {
"main" (Program
:symtab (SymbolTable
:id 1
:symbols {
"b" (Variable
:parent_symtab 1
:name "b"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Logical
:kind 4
)
:type_declaration nil
:abi :Source
:access :Public
:presence :Required
:value_attr false
:target_attr false
:contiguous_attr false
:bindc_name nil
:is_volatile false
:is_protected false
:pass_attr :NotMethod
:self_argument nil
:codims []
)
"i" (Variable
:parent_symtab 1
:name "i"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Integer
:kind 4
)
:type_declaration nil
:abi :Source
:access :Public
:presence :Required
:value_attr false
:target_attr false
:contiguous_attr false
:bindc_name nil
:is_volatile false
:is_protected false
:pass_attr :NotMethod
:self_argument nil
:codims []
)
"j" (Variable
:parent_symtab 1
:name "j"
:dependencies []
:intent :Local
:symbolic_value nil
:value nil
:storage :Default
:type (Integer
:kind 4
)
:type_declaration nil
:abi :Source
:access :Public
:presence :Required
:value_attr false
:target_attr false
:contiguous_attr false
:bindc_name nil
:is_volatile false
:is_protected false
:pass_attr :NotMethod
:self_argument nil
:codims []
)
}
)
:name "main"
:dependencies []
:body [
(Assignment
:target (Var
:v (SymbolRef 1 "i")
)
:value (IntegerConstant
:n 255
:type (Integer
:kind 4
)
:intboz_type :Hex
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "j")
)
:value (IntegerBinOp
:left (Var
:v (SymbolRef 1 "i")
)
:op :Mul
:right (IntegerConstant
:n 2
:type (Integer
:kind 4
)
:intboz_type :Decimal
)
:type (Integer
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "j")
)
:value (IntegerUnaryMinus
:arg (Var
:v (SymbolRef 1 "i")
)
:type (Integer
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "j")
)
:value (IntegerBitNot
:arg (Var
:v (SymbolRef 1 "i")
)
:type (Integer
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "j")
)
:value (IntegerBitLen
:a (Var
:v (SymbolRef 1 "i")
)
:type (Integer
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "b")
)
:value (IntegerCompare
:left (Var
:v (SymbolRef 1 "i")
)
:op :Lt
:right (Var
:v (SymbolRef 1 "j")
)
:type (Logical
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
]
)
}
)
:items []
)