stdruntimeerrorFile
std::runtime_error is a standard exception class in C++ that is part of the Standard Library. It is defined in the <stdexcept> header file. This class is used to report errors that can only be detected during runtime. It inherits from the std::exception class, which makes it part of the exception hierarchy in C++.
The std::runtime_error class is typically used to indicate errors that are not related to the logic of
When an std::runtime_error exception is thrown, it can carry a descriptive error message. This message can be
Here is an example of how std::runtime_error can be used in a C++ program:
void openFile(const std::string& filename) {
// Simulate file opening failure
throw std::runtime_error("Failed to open file: " + filename);
}
try {
} catch (const std::runtime_error& e) {
std::cerr << "Runtime error: " << e.what() << '\n';
}
}
In this example, the openFile function simulates a failure to open a file and throws an std::runtime_error