We present, for the first time, an operational semantics and a type system for a C++-like object-oriented language with both shared and repeated multiple inheritance, together with a machinechecked proof of type safety. The formalization uncovered several subtle ambiguities in C++, which C++ compilers resolve by ad-hoc means or which even result in uncontrolled run-time errors. The semantics is formalized in Isabelle/HOL.
By: Daniel Wasserrab; Tobias Nipkow; Gregor Snelting; Frank Tip
Published in: RC23709 in 2005
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