| Feature | Visual C++ 2019 | Visual C++ 2021 | | --- | --- | --- | | C++ Standard Support | C++17, C++14 | C++20, C++23 (experimental) | | Performance Enhancements | Improved compiler, linker, and runtime performance | Further performance improvements, faster build times | | Linux Development | Introduced Linux development environment | Improved Linux development experience | | Security Features | Basic security features | Enhanced security features, Spectre mitigations | | ARM Support | Limited ARM support | Improved ARM64 and ARM support |
// Constructor implementation BankAccount::BankAccount(double initialBalance) : balance(initialBalance) if (initialBalance < 0) throw std::invalid_argument("Initial balance cannot be negative."); microsoft visual c 2019 2021