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std::set_terminate

Defined in header <exception> 
std::terminate_handler set_terminate( std::terminate_handler f ) throw();
 (until C++11) 
std::terminate_handler set_terminate( std::terminate_handler f ) noexcept;
 (since C++11)

Makes f the new global terminate handler function and returns the previously installed std::terminate_handler. f shall terminate execution of the program without returning to its caller, otherwise the behavior is undefined.

This function is thread-safe. Every call to std::set_terminate synchronizes-with (see std::memory_order) subsequent calls to std::set_terminate and std::get_terminate.

 (since C++11)

Parameters

f - pointer to function of type std::terminate_handler, or null pointer

Return value

The previously-installed terminate handler, or a null pointer value if none was installed.

Example

#include <iostream>
#include <cstdlib>
#include <exception>
 
int main()
{
    std::set_terminate([](){
        std::cout << "Unhandled exception\n" << std::flush;
        std::abort();
    });
    throw 1;
}

Possible output:

Unhandled exception
bash: line 7:  7743 Aborted                 (core dumped) ./a.out

See also

function called when exception handling fails
(function)
(C++11)
 obtains the current terminate_handler
(function)
the type of the function called by std::terminate
(typedef)

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