ComplexCompare¶
A comparison of two complex values.
Declaration¶
Syntax¶
ComplexCompare(expr left, cmpop op, expr right, ttype type,
expr? value)
Arguments¶
Argument |
Description |
|---|---|
|
the left operand. |
|
the comparison; see cmpop. |
|
the right operand. |
|
the logical type of the result. |
|
the compile time value of the expression, when the frontend could fold it; |
Return values¶
The value of the expression.
Description¶
Only Eq and NotEq are meaningful: complex numbers are not ordered, and a
frontend must reject < on them rather than emitting this node with an
ordering comparison.
Examples¶
(ComplexCompare
:left (Var
:v (SymbolRef 1 "z")
)
:op :Eq
:right (Var
:v (SymbolRef 1 "w")
)
:type (Logical
: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
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:pass_attr :NotMethod
:self_argument nil
:codims []
)
"w" (Variable
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:intent :Local
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)
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"x" (Variable
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)
"z" (Variable
:parent_symtab 1
:name "z"
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:intent :Local
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:type (Complex
:kind 4
)
:type_declaration nil
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:access :Public
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}
)
:name "main"
:dependencies []
:body [
(Assignment
:target (Var
:v (SymbolRef 1 "z")
)
:value (ComplexConstant
:re 1.0
:im 2.0
:type (Complex
:kind 4
)
)
:overloaded nil
:realloc_lhs false
:move_allocation false
)
(Assignment
:target (Var
:v (SymbolRef 1 "z")
)
:value (ComplexConstructor
:re (RealConstant
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:type (Real
:kind 4
)
)
:im (Var
:v (SymbolRef 1 "x")
)
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)
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(Assignment
:target (Var
:v (SymbolRef 1 "w")
)
:value (ComplexBinOp
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:v (SymbolRef 1 "z")
)
:op :Mul
:right (ComplexConstant
:re 0.0
:im 1.0
:type (Complex
:kind 4
)
)
:type (Complex
:kind 4
)
:value nil
)
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)
(Assignment
:target (Var
:v (SymbolRef 1 "w")
)
:value (ComplexUnaryMinus
:arg (Var
:v (SymbolRef 1 "z")
)
:type (Complex
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
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)
(Assignment
:target (Var
:v (SymbolRef 1 "x")
)
:value (ComplexRe
:arg (Var
:v (SymbolRef 1 "z")
)
:type (Real
:kind 4
)
:value nil
)
:overloaded nil
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)
(Assignment
:target (Var
:v (SymbolRef 1 "x")
)
:value (ComplexIm
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:v (SymbolRef 1 "z")
)
:type (Real
:kind 4
)
:value nil
)
:overloaded nil
:realloc_lhs false
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)
(Assignment
:target (Var
:v (SymbolRef 1 "b")
)
:value (ComplexCompare
:left (Var
:v (SymbolRef 1 "z")
)
:op :Eq
:right (Var
:v (SymbolRef 1 "w")
)
:type (Logical
:kind 4
)
:value nil
)
:overloaded nil
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)
]
)
}
)
:items []
)