Adding Unary Operator Support | Custom Expression Evaluator | Part 8 | C++

This video adds full support for unary operators in the expression evaluator. The interpreter now handles logical NOT, numeric negation, and unary plus during evaluation. Covered topics: - Logical NOT ! - Unary negation - - Unary plus + - AST representation for unary expressions - Interpreter evaluation rules This completes core operator coverage and improves expression correctness. Project source code: https://github.com/allankoechke/cpp-expr-eval Connect: - Twitter X: https://x.com/allankoechke - LinkedIn: https://linkedin.com/in/allankoech