[cfe-dev] New cast check

[Anders Rönnholm]

Hi,

I'm going to start working on a check on dangerous long casts, like pc lint warning 647.

e.g
int a = 105000;
int b = 25000;
long l = a*b; // possible truncation before conversion from 'int' to 'long'

I'm thinking of adding this to the AnalyzeImplicitConversions function in SemaChecking.

I will also create a CheckExplicitConversions function for cases like.

(long) (n << 8)

Would this be a good place to put it?

//Anders

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