[cfe-dev] [PATCH] add constant expression evaluation to the AST and fix PR2413

[Argiris Kirtzidis]

Argiris Kirtzidis wrote:
>
> if (expr is integer)
> ..
> else if (expr is float)
> ...

Just to be more clear about this, your design with TryEvaluateExprInt, 
TryEvaluateExprFloat is not the same as the above; these functions work 
more like

if (expr can be evaluated as integer)
..
else if (expr can be evaluated as float)
..

This way, for example, you cannot distinguish between an integer 
constant and a character one.


-Argiris