The abort extension adds a function named abort(), as follows:
This function takes an integer argument and passes that value to the exit(3) C library function. If the argument is not numeric, it passes zero to exit(3). No matter what, gawk exits.
@load "abort" ... printf "Goodbye, cruel world!\n" abort(11)
Arnold D. Robbins
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assert(3), assert_perror(3), guestfs(3), jemalloc(3), mallopt(3), mcheck(3), nbdkit-release-notes-1.14(1), pmemobj_tx_begin(3), rawshark(1), signal(7), signal-safety(7), stdio(3), stress-ng(1), Tcl_Panic(3), tshark(1), wireshark(1).