Re: Newby: VC6 errors

From:
Norbert Unterberg <nunterberg@newsgroups.nospam>
Newsgroups:
microsoft.public.vc.language
Date:
Fri, 15 Feb 2008 11:16:56 +0100
Message-ID:
<uRcNnv7bIHA.4888@TK2MSFTNGP05.phx.gbl>
In addition to what the others have answered already, your function looks like a
typical example for a ostringstream. See below

Blue Streak schrieb:

Hello,

I am trying to understand why this string concatenation is not
working. Could someone shed some light on this and tell me what I'm
doing wrong?

[...]

---ParseLineDemo.h---
#include "stdafx.h"
#include <string.h>
#include <vector>
using namespace std;

union POD //Plain Ordinary Data
{
    int i;
    float f;
};

class DataSegment
{
    public:
        DataSegment(){}; //default constructor
        ~DataSegment();
        void setHeader(char dH[4]);
        void Push(POD p);
        string toString();
        void Clear(); //empty out the object

    private:
        char dataHeader[4]; //the name of the segment e.g. S[ or D[
        vector<POD> components;

};

---ParseLineDemo.cpp---
...


#include <sstream>

string DataSegment::toString()
{
    
ostringstream out;

    out << dataheader << "[";

   for (int i = 0; i < components.size(); i++)
   {
        out << components[i].i;
        if (i < components.size()-1)
            out << ",";
   }
    return out.str();
}

...


Norbert

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