From:	"Brian MacBride" <macbride AT ix DOT netcom DOT com>
Newsgroups:	comp.os.msdos.djgpp
References:	<84t0lf$2e5$1 AT nclient3-gui DOT server DOT dtn DOT ntl DOT com>
Subject:	Re: Problems compling c++
Lines:	74
Organization:	Signal Computing Service Ltd.
MIME-Version:	1.0
X-Priority:	3
X-MSMail-Priority:	Normal
X-Newsreader:	Microsoft Outlook Express 5.00.2919.6600
X-MimeOLE:	Produced By Microsoft MimeOLE V5.00.2919.6600
Message-ID:	<8Yoc4.340$Qa5.3490@hnlnewsr2.hawaii.rr.com>
Date:	Tue, 04 Jan 2000 16:10:44 GMT
NNTP-Posting-Host:	204.210.106.78
X-Complaints-To:	abuse AT rr DOT com
X-Trace:	hnlnewsr2.hawaii.rr.com 947002244 204.210.106.78 (Tue, 04 Jan 2000 06:10:44 HST)
NNTP-Posting-Date:	Tue, 04 Jan 2000 06:10:44 HST
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

"Andy" <a DOT pelton AT dtn DOT ntl DOT com> wrote in message
news:84t0lf$2e5$1 AT nclient3-gui DOT server DOT dtn DOT ntl DOT com...
> ok, I am learning c++ using Soustroups book "The c++ programming language
> 3rd Ed". I have just been trying to get the desttop calculator to work
(from
> chap 6, Ex 18).
>
> It will not compile, but I think the error is related to incomplete STL.
is
> this so?
>
> here is the errror messages
>
> c6ex18.cpp: In function `enum Token_value get_token()':
> c6ex18.cpp:152: no matching function for call to
>
`basic_string<char,string_char_traits<char>,__default_alloc_template<false,0
> > >::push_back (char &)'
>
> the source is added as an attachment.
>
> thanks in advance
>
> andy
>
>
>
>
>
>

Consider...

Token_value get_token()
{
  char ch=0;

    <snip>

  default:
    if(isalpha(ch)) {
      string_value = ch;
      while(cin.get(ch) && isalnum(ch))

        // was ??
        // string_value.push_back(ch);
        // now !!
        string_value += ch;

      cin.putback(ch);
      return curr_tok=NAME;
    }
    error("bad token");
    return curr_tok = PRINT;
  }
}

/
*Yields...

(2+3)*4+3*2
26

*/

Is that what you wanted??

Regards

Brian

- Raw text -