[cfe-dev] Get the number of bits of a bit field with libclang?
kyrtzidis at apple.com
Tue May 22 12:51:31 PDT 2012
On May 22, 2012, at 12:37 PM, Jacob Carlborg wrote:
> On 2012-05-22 21:28, Argyrios Kyrtzidis wrote:
>> On May 22, 2012, at 11:42 AM, Jacob Carlborg wrote:
>>> Is it possible to get the number of bits of a bit field with libclang?
>>> struct Foo
>>> int a : 1;
>>> I noticed I could traverse to the "value" of "a" and the type of the
>>> cursor was CXCursor_IntegerLiteral. But is it possible to get the actual
>> No, are you interested in submitting a patch ? I suggest something like "clang_Cursor_getBitWidthValue(CXCursor)" similar to how clang_Cursor_getNumArguments(CXCursor C) works, with the difference that it can return "unsigned" and 0 if the cursor is not a bitfield.
> Probably in the long run if no one else does it. But right now I have
> other things on my todo-list for my tool with higher priority.
> Would two functions be a good idea, one for signed and one for unsigned
> values? Just like "clang_getEnumConstantDeclValue" and
No, negative values are not allowed for bitfield width.
> /Jacob Carlborg
> cfe-dev mailing list
> cfe-dev at cs.uiuc.edu
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