Newsgroups: comp.os.msdos.djgpp,gnu.g++.help
Subject: Re: How to clear char array buffer[]?
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From: Gerall Kahla <gerall AT chromebob DOT com>
Message-ID: <871yoplvje.fsf@coin.chromebob.com>
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Date: 12 Jun 2001 07:41:57 -0500
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

"Dr Joolz" <julius_mong AT hotmail DOT com> writes:

> Dear all, I have some code like this:
> 
> while (!fin.eof()) {
>   fin.getline(buffer, MAX);
>   token = strtok( buffer, seps );
>   while ( token != NULL ) {
>    dict.insertN(token, i);
>    cout << i << token << endl;
>    cout << dict;
>    token = strtok( NULL, seps );
>    i++;
>    }
> }
> 
> and it is causing problems with what's read in buffer every time getline is
> executed, if I used a different char buffer in getline in each while exec
> problem gone. So I know it is buffer that's not being reset to empty at the
> end of each while loop, how do I do that? I tried buffer = ""; or NULL or
> assigning buffer[i] = '\0' etc won't work...
> 

How about adding a line like this:

<paste>
> while (!fin.eof()) {

    // this clears the buffer before reading
    memset( buffer, '\0', sizeof(buffer));

>   fin.getline(buffer, MAX);
>   token = strtok( buffer, seps );
>   while ( token != NULL ) {
>    dict.insertN(token, i);
>    cout << i << token << endl;
>    cout << dict;
>    token = strtok( NULL, seps );
>    i++;
>    }
> }

-- 
Gerall Kahla a.k.a the Celestial Mechanic
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