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2.2 Type Casting: Widening vs Narrowing & Overflow Hazards
Topic Summary
Understand implicit type promotion, explicit manual casting, and how integer overflow can silently corrupt financial calculations.
What You Will Learn
• Explain implicit widening conversion and why it is always safe.
• Implement explicit narrowing casting using parenthesis syntax `(type)`.
• Detect and prevent integer overflow wrap-around bugs.
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