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I'm writing a checker for clang-tidy, which checks cast between int and pointer.

for example, for code:

int val = 0xbaddeef;
char* ptr = (char*)val;

I want to fix it to:

char* ptr = (char*)(uintptr_t)val;

But if a is already uintptr_t, I don't fix it.

typedef uintptr_t myType;
myType val = 0xbaddeef;
char* ptr = (char*)val;

My question is that I matched the CStyleCastExpr and get the match result, but I can't get the source type of the cast, I use CStyleCastExpr.getSubExpr().getType().getXXXXType(), I get the type of val is myType or long/int, but not uintptr_t.

how can I know val is a type of uintptr_t?

NingLee
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1 Answers1

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You might have a look at getType().getAsString(), getType().getCanonicalType.getAsString(), and getType().getUnqualifiedType.getAsString(). I think one of them will return what you want.

Robert Ankeney
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