Alright guys I have a question. I am trying to write a custom data type. Let me explain a little further. I'll start out at the base.

te_char (you don't really have to worry about this.

>char c_char
>rgb color

te_word (weird part)

>int type (based on an enumeration
>vector <te_char> whatever
>what ever else

>inline void conv_type_to_word

te_body : public ostream (I want it to work this way atleast)

>vector <te_word> whatver

I want to be able to write to the te_body's vector like you would a cout.

Like

te_body awesomesauce;
awesomesauce << "SMILEY EXTREME =" << 7;

OR

I'd like to be able to dynamically write to a te_word with any data type. At that I can handle converting to it. I just want to litteraly make a functuion with a dynamic amount of arguments or make an operator that is like the "cout <<" that writes to the vector of te_words. I can determine the type of input within that function or operator.

I tried this to no avail:

#include <cstdlib>
#include <iostream>

using namespace std;
class lol: public ostream
{    
};
int main(int argc, char *argv[])
{
    lol b;
    b<< "HI" << endl;
    system("PAUSE");
    return EXIT_SUCCESS;
}

It had no errors but crashed upon running.

If all you want is the syntax of ostream inserters, it is easy to duplicate without dealing with the iostreams framework. Here is an example taking strings.

#include <iostream>
#include <string>
#include <vector>

using namespace std;

class VectorStream {
public:
    string& operator[](int i) { return v[i]; }

    friend VectorStream& operator<<(VectorStream& strm, string const& s)
    {
        strm.v.push_back(s);
        return strm;
    }
private:
    vector<string> v;
};

int main()
{
    VectorStream strm;

    strm << "a" << "test" << "baby";

    for (int i = 0; i < 3; ++i)
        cout << strm[i] << '\n';
}

Edited 6 Years Ago by Radical Edward: n/a

Okay I just looked at that, I don't have a compiler right now but could I go like:

strm << "hi" << 27373;

? Or would it be like the Iostreams own ostream function where they declare it for each data type??

EDIT:

Okay I see how it works, the v vector would be my te_word vector, and I would have to make a operator friend function for every different type such as int, double, etc.

Edited 6 Years Ago by argio: n/a

I FIGURED IT OUT. Here is an example of it working. :)

#include <iostream>
#include <string>
#include <vector>
#include <stdlib.h>	// for itoa() call
#include <stdio.h>	// for printf() call

char buf[10000];

using namespace std;



class te_body {
public:
    string& operator[](int i) { return v[i]; }

    friend te_body& operator<<(te_body& strm, string const& s)
    {
        strm.v.push_back(s);
        return strm;
    }
    
    friend te_body& operator<< (te_body& strm, int const& i)
    {
        strm.v.push_back(itoa(i, buf, 10));
        return strm;
    }
    
    unsigned int size()
    {
         return v.size();
    }
private:
    vector<string> v;
};

int main()
{
    int b;
    b = 348347834;
    te_body strm;

    strm << "a" << "test" << "baby" << b;

    for (int i = 0; i < strm.size() ; ++i)
        cout << strm[i] << '\n';
        
        system("PAUSE");
}

Edited 6 Years Ago by argio: n/a

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