\brief Return the offset of a field named S in a record of type T in bits
as it would be returned by __offsetof__ as per C++11[18.2p4]
If the cursor is not a record field declaration, CXTypeLayoutError_Invalid
is returned.
If the field's type declaration is an incomplete type,
CXTypeLayoutError_Incomplete is returned.
If the field's type declaration is a dependent type,
CXTypeLayoutError_Dependent is returned.
If the field's name S is not found,
CXTypeLayoutError_InvalidFieldName is returned.
\brief Return the offset of a field named S in a record of type T in bits as it would be returned by __offsetof__ as per C++11[18.2p4]
If the cursor is not a record field declaration, CXTypeLayoutError_Invalid is returned. If the field's type declaration is an incomplete type, CXTypeLayoutError_Incomplete is returned. If the field's type declaration is a dependent type, CXTypeLayoutError_Dependent is returned. If the field's name S is not found, CXTypeLayoutError_InvalidFieldName is returned.