std::abort
From cppreference.com
Defined in header
<cstdlib>
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void abort();
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(until C++11) | |
[[noreturn]] void abort();
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(since C++11) | |
Causes abnormal program termination unless SIGABRT is being caught by a signal handler passed to signal and the handler does not return.
Destructors of variables with automatic, thread local and static storage durations are not called. Functions passed to std::atexit() are also not called. Whether open resources such as files are closed is implementation defined. Implementation defined status is returned to the host environment that indicates unsuccessful execution.
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[edit] Parameters
(none)
[edit] Return value
(none)
[edit] Exceptions
(none) | (until C++11) |
noexcept specification:
noexcept |
(since C++11) |
[edit] Example
Run this code
#include <csignal> #include <iostream> #include <cstdlib> class Tester { public: Tester() { std::cout << "Tester ctor\n"; } ~Tester() { std::cout << "Tester dtor\n"; } }; Tester static_tester; // Destructor not called void signal_handler(int signal) { if (signal == SIGABRT) { std::cerr << "SIGABRT received\n"; } else { std::cerr << "Unexpected signal " << signal << " received\n"; } std::_Exit(EXIT_FAILURE); } int main() { Tester automatic_tester; // Destructor not called // Setup handler auto previous_handler = std::signal(SIGABRT, signal_handler); if (previous_handler == SIG_ERR) { std::cerr << "Setup failed\n"; return EXIT_FAILURE; } std::abort(); // Raise SIGABRT std::cout << "This code is unreachable\n"; }
Output:
Tester ctor Tester ctor SIGABRT received
[edit] See also
causes normal program termination with cleaning up (function) |
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registers a function to be called on std::exit() invocation (function) |
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(C++11)
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causes quick program termination without completely cleaning up (function) |
sets a signal handler for particular signal (function) |
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C documentation for abort
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