exception::bad_exception in C++ with Examples
Standard C++ contains several built-in exception classes, exception::bad_exception is one of them. This is an exception thrown by unexpected handler. Below is the syntax for the same:
Header File:
include<exception>
Syntax:
class bad_exception;
Return: The exception::bad_exception returns a null terminated character that is used to identify the exception.
Note: To make use of exception::bad_exception, one should set up the appropriate try and catch blocks.
Below are the examples to understand the implementation of exception::bad_exception in a better way:
Program 1 :
// C++ code for std::bad_exception #include <bits/stdc++.h> using namespace std; void func() { throw ; } void w3wiki() throw (bad_exception) { throw runtime_error( "test" ); } // main method int main() { set_unexpected(func); // try block try { w3wiki(); } // catch block to handle the errors catch ( const bad_exception& gfg) { cout << "Caught exception " << gfg.what() << endl; } return 0; } |
Output:
Caught exception std::bad_exception
Program 2 :
// C++ code for std::bad_exception #include <bits/stdc++.h> using namespace std; void gfg() { throw ; } void A_Computer_Science_Portal_For_Beginner() throw (bad_exception) { throw runtime_error( "test" ); } // main method int main() { set_unexpected(gfg); // try block try { A_Computer_Science_Portal_For_Beginner(); } // catch block to handle the errors catch ( const bad_exception& a) { cout << "Caught exception " << a.what() << endl; } return 0; } |
Output:
Caught exception std::bad_exception
Reference: http://www.cplusplus.com/reference/exception/bad_exception/
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