You can abort your program using the abort function. The prototype
for this function is in stdlib.h.
void abort (void) ¶Preliminary: | MT-Safe | AS-Unsafe corrupt | AC-Unsafe lock corrupt | See POSIX Safety Concepts.
The abort function causes abnormal program termination. This
does not execute cleanup functions registered with atexit or
on_exit.
This function actually terminates the process by raising a
SIGABRT signal, and your program can include a handler to
intercept this signal; see Signal Handling.