THINK++ — Engineering Visualized

Error Management

Exception Handling

A way to handle runtime errors (like division by zero or file not found) gracefully without crashing the entire program.

THE TRIAD: try, throw, catch

try {
    if (b == 0) throw "DivByZero";
    cout << a / b;
} catch (const char* msg) {
    cerr << "Error: " << msg;
}

try

Block of code where exceptions might occur.

throw

Used to signal that an error has happened.

catch

Block of code that handles the specific exception.

STANDARD EXCEPTIONS

C++ provides a set of standard exceptions in the <stdexcept> header, like std::runtime_error and std::out_of_range.

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