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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.
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