How do I avoid exceptions and handle errors std::pair in C++?

In C++, handling errors without using exceptions can be done effectively with mechanisms such as return values or using types like `std::pair`. This helps to avoid the overhead associated with exceptions and allows for more predictable error handling.

Using std::pair for Error Handling

Instead of throwing exceptions, you can use `std::pair` to return a result along with a status indicator. The first element of the pair can represent the result, while the second element can represent the error status.

Here is an example of using `std::pair` to handle errors without exceptions:


    #include 
    #include  // for std::pair
    #include 

    std::pair divide(int numerator, int denominator) {
        if (denominator == 0) {
            return {0, "Error: Division by zero"};
        }
        return {numerator / denominator, ""}; // No error
    }

    int main() {
        int numerator = 10;
        int denominator = 0;

        auto [result, error] = divide(numerator, denominator);

        if (!error.empty()) {
            std::cout << error << std::endl;
        } else {
            std::cout << "Result: " << result << std::endl;
        }

        return 0;
    }

C++ Error Handling Exceptions std::pair C++ Programming Best Practices

How do I avoid exceptions and handle errors std::pair in C++?

Using std::pair for Error Handling

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How do I avoid exceptions and handle errors std::pair in C++?

Using std::pair for Error Handling

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