How read this file into array without comma?

Hello all:

My program need to read files with numbers as:
1,171.11
1,159.36
1,154.05

Because these numbers can not be calculated in C/C++, I need to store then in the arrays as:
1171.11
1159.36
1154.05
that is without commas.

How read numbers in a file into program arrays taking away commas?

Could you help me?

Code:

#include <iostream>
#include <string>
using namespace std;


int main()
{

	string example; 
	example = "123,456.00";

	int pos;

	pos = example.find(',',0); //Searches for "," in string starting at position 0
						 
												 
	/* If the string does not have the char in it, then there is nothing to delete
	This only deletes if the 'not found' value is not present */
	
	if ( pos != string::npos) 
	{

	example.erase(pos,1); //Erases from string, starting at position pos (returned by search)
	}


	cout << example;

  return 0;
}

For more info on using strings (which are arrays):
http://www.msoe.edu/eecs/ce/courseinfo/stl/string.htm

This will only find the first occurrence of the comma, so if you might have more than one comma (such as 123,456,789.00) you can just put it in a loop.

This isn't perhaps the prettiest example but it serves your purpose. Be careful of the EOF. Best to avoid using it if you can.

Code:

#include <fstream>
#include <iostream>
#include <string>
using namespace std;

int main()
{
    /*
    list.txt
    -----------------
    1,171.11
    1,159.36
    1,154.05
    */
    
    fstream file_pointer;
    file_pointer.open("list.txt",ios::in);
    
    do
    {
        char array[81];
        char barray[81];
        file_pointer>>array;
        
        int size = strlen(array);
        int count=0;
        int i;
        for( i=0; i<size; i++)
        {
            if (array[i]!=',')
            {
                barray[count]=array[i];
                count++;
            } 
        }
        barray[i-1]='\0';//get rid of the junk which may be present
        float f;
        f=atof(barray); //convert to float
        cout<<f;//you can now perform standard maths on the number
        //cout<<f*2;
        cin.get();
        count=0;        
         
            }while(file_pointer.peek()!=EOF);
            file_pointer.close();
}

Man...whatever happened to the days of giving the OP some advice and letting him/her figure it out?

Hello Enahs and Treenef:

Thank you for your passionate responses to write the program for me. Could you go a step forward to modify your program with following requirements.

Suppose the file named file.txt contains numbers:
1,111.11
2,222.22
3,333.33
After reading these numbers and then write them into a new file named file_new.txt, the numbers in new file changed to:
1111.11
2222.22
3333.33

It means that the numbers in file.txt with commas, but in file_new.txt without commas.

Could you help again?

> Could you go a step forward to modify your program with following requirements.
Get off your lazy arse and do some bloody work yourself
Just how much of a spoon-feed do you need?????

oh come on, he will make a good IT manager some day!

Ok now you're just being lazy. Go look at the string functions on msdn.

Now Everything has been solved. Thanks anyway.