Does __attribute__ ((destructor)) run on crash?

Will gcc's deconstructor still run if the program crashes (due to a segfault or whatever else), or only on a successful exit or end of main?

All bets are off as soon as your program does anything not covered by the standard - such as accessing non existent memory causing segfaults.

Plus the manual page only mentions normal exits.

Quote:

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Originally Posted by gcc manual

The constructor attribute causes the function to be called automatically before execution enters main (). Similarly, the destructor attribute causes the function to be called automatically after main () has completed or exit () has been called. Functions with these attributes are useful for initializing data that will be used implicitly during the execution of the program.

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