SizeOfType¶
The size in bytes of a type.
Declaration¶
Syntax¶
SizeOfType(ttype arg, ttype type, expr? value)
Arguments¶
Argument |
Description |
|---|---|
|
the type being measured. |
|
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¶
c_sizeof(x), and the size an allocation needs. The operand is a type, not an
expression, because nothing is read: the answer depends only on the type.
Examples¶
(SizeOfType
:arg (Integer
:kind 4
)
:type (Integer
:kind 8
)
:value nil
)
It comes from this complete ASR text document:
(TranslationUnit
:symtab (SymbolTable
:id 0
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"main" (Program
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)
"c" (Variable
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:name "c"
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:intent :Local
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:type (CPtr
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)
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"n" (Variable
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)
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)
"p" (Variable
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:name "p"
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:intent :Local
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:storage :Default
:type (Pointer
:type (Integer
:kind 4
)
)
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"target" (Variable
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)
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:is_protected false
:pass_attr :NotMethod
:self_argument nil
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)
}
)
:name "main"
:dependencies []
:body [
(Assignment
:target (Var
:v (SymbolRef 1 "c")
)
:value (CLoc
:arg (Var
:v (SymbolRef 1 "target")
)
:type (CPtr
:kind :CPtrUnspecified
)
:value nil
)
:overloaded nil
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)
(Assignment
:target (Var
:v (SymbolRef 1 "c")
)
:value (PointerToCPtr
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:v (SymbolRef 1 "p")
)
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)
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)
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)
(Associate
:target (Var
:v (SymbolRef 1 "p")
)
:value (GetPointer
:arg (Var
:v (SymbolRef 1 "target")
)
:type (Pointer
:type (Integer
:kind 4
)
)
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)
)
(Assignment
:target (Var
:v (SymbolRef 1 "b")
)
:value (CPtrCompare
:left (Var
:v (SymbolRef 1 "c")
)
:op :Eq
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:v (SymbolRef 1 "c")
)
:type (Logical
:kind 4
)
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)
(Assignment
:target (Var
:v (SymbolRef 1 "b")
)
:value (PointerAssociated
:ptr (Var
:v (SymbolRef 1 "p")
)
:tgt (Var
:v (SymbolRef 1 "target")
)
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)
(Assignment
:target (Var
:v (SymbolRef 1 "n")
)
:value (SizeOfType
:arg (Integer
:kind 4
)
:type (Integer
:kind 8
)
:value nil
)
:overloaded nil
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)
]
:global_init nil
)
}
)
:items []
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)