On 29.06.2020 21:36, Jason Thorpe wrote: > >> On Jun 29, 2020, at 9:09 AM, Rhialto <rhia...@falu.nl> wrote: >> >> But I wonder if there is any standards text that >> describes whether this particular scenario is supposed to work. > > Quoting from "The Open Group Base Specifications Issue 7, 2018 edition" > > <quote> > The atexit() function shall register the function pointed to by func, to be > called without arguments at normal program termination. At normal program > termination, all functions registered by the atexit() function shall be > called, in the reverse order of their registration, except that a function is > called after any previously registered functions that had already been called > at the time it was registered. Normal termination occurs either by a call to > exit() or a return from main(). > </quote> > > My reading of the standard here is that atexit() handlers are called at > "normal program termination", and that "normal program termination" is > explicitly defined as either a call to exit() or returning from main(), and > thus any other call to atexit() handlers is expressly forbidden by the > standard. >
There is no word "only", so it's unspecified. > -- thorpej >
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