I/O using a STL container

http://www.shreve-lib.org

I am new to C++ programming using the STL Library. Can someone demostrate a code snippit that would equate the same performance as this:


#include <fstream.h>

#include <iostream.h>



int main()

{

char HaveTextArray[250], *HavePtr,HaveFile[20];
HaveFile="HaveTextFile.txt";
HavePtr=&HaveTextArray;

ofstream Text_file(HaveFile);

//Creates an instance of ofstream, and opens HaveTextFile.txt

Text_file<<"This text will be placed into the file HaveTextFile.txt";

//Outputs to HaveTextFile.txt through Text_file

Text_file.close();

//Closes up the file

ifstream Text_file(HaveFile)
//Opens for reading the file

while(HavePtr!=EOF) {
//Reads a string - up to 250 characters long - from the file

Text_file>>HavePtr;
HavePtr++;
}

cout<<HaveTextArray;

Text_file.close();

//Close the file.

}

/*
Now how do I do the samething using a contain in the STL where a class holds the data container?

-----------------------------------------------------------------------------------
*/

// Setup a class to hold the container:
using STD;
class StorageContainer {
std::Map(char Array[250]);
}

// I may not have set this up right, but you see what is am trying to do

/* How would I use "StorageContainer" to load up the "Array" varable, STORE IT into a file called "Text_File" and retrieve the
data from the "StorageContainer" class's STL container?
*/

Alright, you typed too many comments. Be more specific and get to the point.

Assuming the source file containers texts, where do you want to store them? Do you want to store them in a container? What container?

Kuphryn

reading a space delimited file with ints into a STL vector container. Uncompiled.

Code:

---

#include <fstream>
#include <vector>

using namespace std;

int main()
{
  int x;
  vector <int> data;
    ifstream fin("MyData.txt");
    fin >> x;
    while(!fin.eof())
    {
        data.push_back(x);
        fin >> x;
    }
    //do something with data here
}

---

"reading a space delimited file with ints into a STL vector"

Yeah, but apparently he wants an STL container for chars. Does a string object count?

fair enough

change the <int> to <char> and int x to char x and as long as the file is delimited by whitespace everything is cool.

to use with STL strings add #include <string> change <int> to <string>, change int x to string x, and change fin >> x to getline(fin, x, delimitingChar).

The underlying structure of the program remains the same, the individual components differ depending on needs/desires.

why not just use istream_iterator and ostream_iterator to read into and out of a container