Q50334: atexit() Returns Zero if Successful

Article: Q50334
Product(s): See article
Version(s): 5.00 5.10
Operating System(s): MS-DOS
Keyword(s): ENDUSER| | docerr S_QuickC | mspl13_c
Last Modified: 30-NOV-1989

Question:

The "Microsoft C for the MS-DOS Operating System: Run-Time Library
Reference" has conflicting statements regarding the return code from
atexit(). What is the proper return code?

Response:

There is an error in the run-time library reference for the atexit()
function (Page 124) under DESCRIPTION. The correct return values are
described in the RETURN VALUE section. atexit() should return a value
of zero (0) if successful and nonzero (-1) on error.

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