[Lldb-commits] [PATCH] D10932: Improve UnwindLLDB with better detection for unwinding failures

[Tamas Berghammer]

std::shared_ptr have an implicit constructor just for this purpose to make code simpler (without a typedef it would be odd to always write "return std::shared_ptr<Cursor>();")

  constexpr shared_ptr( std::nullptr_t );


http://reviews.llvm.org/D10932