Xref: utzoo unix-pc.general:3085 comp.lang.c:19382
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!bbn!diamond.bbn.com!mlandau
From: mlandau@bbn.com (Matt Landau)
Newsgroups: unix-pc.general,comp.lang.c
Subject: Re: strdup() "need source"
Keywords: big.banner
Message-ID: <12876@jade.BBN.COM>
Date: 15 Jun 89 21:14:43 GMT
References: <124@sssphx.UUCP>
Reply-To: mlandau@bbn.com (Matt Landau)
Distribution: usa
Organization: BBN Systems and Technologies Corporation, Cambridge, MA
Lines: 27

Not that it's any big deal, and not that we won't have 250 different
people each posting his or her own pet version of strdup to comp.lang.c,
but here's a minimalist version:

    /* strdup():  Return a copy of the argument string. */

    char *strdup(s)
    char *s;
    {
	extern char *malloc(), *strcpy();
	char *p;

	if (s && (p = malloc(strlen(s) + 1)))
	    return (strcpy(p, s));
	return (NULL);
    }

Although one can get even more minimalist with

    return (s && (p = malloc(strlen(s) + 1))) ? strcpy(p, s) : NULL;

:-)

--
 Matt Landau		    	mlandau@bbn.com
 
 Diplomacy is the art of saying "nice doggy" until you can find a rock.