From:	James W Sager Iii <sager+@andrew.cmu.edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re:?Functions recieving strings?
Date:	Mon, 23 Mar 1998 23:27:14 -0500
Organization:	Junior, MCS Undeclared, Carnegie Mellon, Pittsburgh, PA
Lines:	49
Message-ID:	<Ip5nMWq00WB815Vks0@andrew.cmu.edu>
NNTP-Posting-Host:	andrew.cmu.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

I feel kinda stupid answering my own question, but
the problem I found is the following:

void wierd(char *s1)
{
strcat(s1,"_PCX");
cout<<s1<<endl;
}


void main(void)
{
wierd("1");
wierd("2");
}


The output is:
1_PCX
PCX_PCX

appearantly, if you go past the terminating character on char*'s
you pass to functions, they accept whatever is past the one character
as the input for the function the next time.
Hense
'_' is the first character
'PCX' is the next three.

I guess to manipulate strings one should first copy them to a new string.
Which is:

void wierd(char *s1)
{
char *s2;
strcpy(s2,s1)
strcat(s2,"_PCX");
cout<<s2<<endl;
}


Again. I feel stupid for answering my own question...
I'm sure most of you knew this, but I worded my question badly so I 
figured it would be a good idea to explain what my problem was.

Thanks all who tried to help even though my question couldn't have been
more vague, and my example any worse :P

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