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From: todd@cfa.harvard.edu (Todd Karakashian)
Newsgroups: comp.lang.c
Subject: result of strstr(cs,ct) when ct is a null string
Message-ID: <1991May20.163227.7166@cfa.harvard.edu>
Date: 20 May 91 16:32:27 GMT
Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA,  USA
Lines: 29


Is the result of strstr(cs,ct) defined when ct is a null string 
(i.e., when *ct == '\0')?  

SunOS 4.1.1 strstr() returns cs in this situation.  I checked the man
page, K&R 2, and the ANSI standard but couldn't find any illuminating
information (like, for example, saying it was undefined).

I am thinking perhaps that strstr() ought to return NULL in this case, or
maybe a pointer to the null termination of cs, but I am curious what
other people think.  

Thanks...

				Todd


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## Todd Karakashian		          todd@cfa.harvard.edu (I-net)##
## Smithsonian Astrophysical Observatory  ...harvard!cfa!todd (uucp)  ##
## 60 Garden Street, MS 70		  todd@cfa (BITNET)           ##