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Subject: Re: _CRT0_FLAG_NULLOK
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Yes, the code works fine in a Windows XP DOS box and crashes in real mode DOS. That is the reason I posted this. Anyhow, I now changed my code and test if the variable is not NULL.

I still feel it would be a better "user experience" if atoi() would not crash. As far as I understand the specification does not require atoi() to crash if a NULL pointer is passed.

In one of your links it says:
>In AIX when passed a NULL to strchr(), it returns a NULL and the program runs >without aborting

I also found this with HP Tru64 UNIX:

int atoi(const char *nptr );

ERRORS
If nptr is NULL, the functions return 0 and do not set errno.

So some system do avoid a crash with atoi().

Georg

http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/1938____.HTM


P.S. I tried to post a similar message before which seems to have vanished.