[cfe-dev] Getting an sval for sizeof(type)?

[Alexey Sidorin via cfe-dev]

Raymond,

Type size is a compile-time constant. To get it, you may use 
ASTContext::getTypeSize() or ASTContext::getTypeSizeInChars() methods.

Than, you need to make an SVal. Since this value is a constant, you need 
to get an SVal of nonloc::ConcreteInt type. With your constant, you may 
use SValBuilder::makeIntVal() method so your code will look like:

CharUnits TypeSize = Ctx.getTypeSizeInChars(Type);
nonloc::ConcreteInt TypeSize = 
svalBuilder.makeIntVal(TypeSize.getQuantity(), Ctx.getSizeType());


09.05.2016 21:58, McDowell, Raymond C. via cfe-dev пишет:
>
> If we have Type object, can we construct an SVal for the size of that 
> type, i.e., for the value we’d get by evaluating sizeof(type)?
>
>
>
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