Thread: Split a String into Tokens

Don't leave us! Keep pestering us with more questions!
That's what we live for, that's what we sit before the computer for, that's where we get all our posts from!

Alright, good luck.

Thanks for that Elysia.. I am happy to hear that. I will ofcourse keep send you questions. I really appreciate it. Dont worry :P
I have been sitting with a problem for 20 hours myself searching on the internet and thinking about a solution but cant solve this. I beleive that what I want to do is a bit special, perheps there are functions/syntax to help this problem out.
Actually it is 2 things/questions that is happening at the same time.
But I will start out with the first question to see if the first thing could be solved to not make it to difficult.
.................................................. .................................................. ..........................................
Here we go
What I want to do now as I can scan a file and find the lowest value for example "Low" for the entire file. As the example below with 4 lines that contains 2 different dates. I want to store the Lowest Value of Low for each date into a variable. The two variables I have named: "IntraLow9" and "IntraLow8".

01/12/2006,2005,16.19,16.20,16.19,16.19,2100,16.19
01/12/2006,2006,16.20,16.20,16.20,16.20,200,16.20
01/13/2006,2005,16.20,16.20,16.18,16.20,1700,16.18
01/13/2006,2006,16.18,16.19,16.12,16.19,1500,16.19

As the code is scanning the file from the top to bottom I have managed to do a code that do a count when a new date occurs.(´Perheps´ this will be of help for the solution)
The variable is called: "DateCount" and counts down from 11. This meen when the first date happens in the file it will have a count of 9 and for the other date 8.

So the first key for the first date is 9 then. What I want to do now is to store the lowest value of Low into the variable called: IntraLow9
I know that my approach: (IntraLow + DateCount) is wrong but perheps you understand what I am ´trying´ to do. (It is kind of "Intelligent" assignment to variables)

How could it be possible to do something like this ? (Hope you can understand my explanation of the problem )

Code:

#include "stdafx.h"
#include <iostream>
#include <fstream>
#include <sstream> 
#include <string>  

using namespace std;
int main () 
{ 
	std::string Date;
	std::string DateDummy;
	
	double DateCount = 11;
	double IntraLow9 = 1000;
	double IntraLow8 = 1000;
	char Comma;
	int Time = 0;
	double Open = 0;
	double High = 0;
	double Low = 0;
	double Close = 0;
	int Volume = 0;
	double IntraHigh = 0;
	double IntraLow  = 1000;
	double IntraVolume = 0;
	ofstream Test;
  
	Test.open ("file2.txt");
	ifstream myfile ("CCE.txt");
	ifstream file0 ("file0.txt");

			
	while	(    getline(myfile, Date, ',')   )           		
	{
		
		myfile >> Time;		        // 2111
		myfile >> Comma;                   
		myfile >> Open;				// 35.23
		myfile >> Comma;			
		myfile >> High;				// 35.23
		myfile >> Comma;			
		myfile >> Low;				// 35.20
		myfile >> Comma;			
		myfile >> Close;			// 35.22
		myfile >> Comma;
		myfile >> Volume;			// 15600
		myfile >> Comma;			
		myfile >> Close;			// 35.22
		myfile.get();				// read in trailing newline character
		
	if ((Low < (IntraLow + DateCount)) && (DateCount != 11) && (Date == DateDummy))     // I am trying to make the code understand 
	{									                   //	that (IntraLow + DateCount) meens: IntraLow9 where DateCount 
		(IntraLow + DateCount) = Low;					                  //  for the moment is 9 and then put the lowest value for the 
	}									                 //  date into double IntraLow9.
	//////////////////////////////////////////////////////////////////////	
	if (Date != DateDummy) 
	{	
		DateDummy = Date;
		DateCount = (DateCount - 1);                                         // DateCount has a CountDown for the Dates &#180;while&#180; the code is running. Starting at 11
	}
	//////////////////////////////////////////////////////////////////////	
			
	}								// End of While Statement
		Test << IntraLow9 <<"\n";    
		return 0;	


}										// int main braces

Originally Posted by Coding

Code:

		if ((Low < (IntraLow + DateCount)) && (DateCount != 11) && (Date == DateDummy))     // I am trying to make the code understand 
	{									                   //	that (IntraLow + DateCount) meens: IntraLow9 where DateCount 
		(IntraLow + DateCount) = Low;					                  //  for the moment is 9 and then put the lowest value for the 
	}									                 //  date into double IntraLow9.
	//////////////////////////////////////////////////////////////////////	
		if (Date != DateDummy) 
	{	
		DateDummy = Date;
		DateCount = (DateCount - 1);                                         // DateCount has a CountDown for the Dates &#180;while&#180; the code is running. Starting at 11
	}
	//////////////////////////////////////////////////////////////////////	
			
	}								// End of While Statement

I'm not sure I understand your problem. Perhaps I simply need to re-read it, but even so, this is something I want to comment on. This is bad what you're doing.
You're actually putting the { in a indentation LESS than the if. { and } should always be on the same level as your block element, such as if, while, etc.
So indent those { and }, along with all the code inside.

Should look like this:

Code:

		if ((Low < (IntraLow + DateCount)) && (DateCount != 11) && (Date == DateDummy))     // I am trying to make the code understand 
		{									                   //	that (IntraLow + DateCount) meens: IntraLow9 where DateCount 
			(IntraLow + DateCount) = Low;					                  //  for the moment is 9 and then put the lowest value for the 
		}									                 //  date into double IntraLow9.

		if (Date != DateDummy) 
		{	
			DateDummy = Date;
			DateCount = (DateCount - 1);                                         // DateCount has a CountDown for the Dates &#180;while&#180; the code is running. Starting at 11
		}
	}								// End of While Statement

There are excellent tutorials for that on this site. I think.
Anyway, check them out and see if they help.
std::vector and std::map are those you might want to take a look at.