PERSONAL PROFESSIONAL
PROFESSIONAL

Const Refs vs. Raw Pointers: Fixing Shared Pointer Reads
Don't pass `shared_ptr` by value unless you need ownership semantics. Prefer `const T&` for read-only access, or `const std::shared_ptr&` if you need to keep smart pointer semantics—without paying the refcount tax. Avoid raw pointers unless you're absolutely sure they're the right tool.
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