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From: pke AT engstad DOT ingok DOT hitos DOT no (Paal-Kr. Engstad)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: STRLEN(NULL)
Date: 9 Jun 1995 11:21:25 GMT
Organization: University of Tromsoe, Norway
Lines: 17
References: <D9vtqJ DOT AnA AT jade DOT mv DOT net>
Nntp-Posting-Host: engstad.ingok.hitos.no
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Dj-Gateway: from newsgroup comp.os.msdos.djgpp

In article <D9vtqJ DOT AnA AT jade DOT mv DOT net>, pdasilva AT tpone DOT telepac DOT pt (P. da Silva) writes:
|> Hi,
|> 
|> Shouldn't strlen("") or strlen(NULL) return 0?
|> 
|> What does ANSI say about this?

strlen("") must return 0.
strlen(NULL) is *undefined* in ANSI and is very dangerous!
It actually crashes some OS's. Always check null pointers.

|> Thanx
|> Paulo
|> 
|> 

PKE.