Solved

Readinf file and parsing

Posted on 2003-11-29
1
271 Views
Last Modified: 2010-04-02
Hi!
I am trying to read the file below and store into array.
Each number is between 1 – 80 and number of line will be between 1 – 10,000.
Also, is it good idea to use array since this file might contains 10,000 of line?

Ex)
3:  1,  4,  5, 10, 14, 15, 16, 19, 22, 25, 26, 37, 38, 42, 50, 56, 62, 70, 74, 80
1:  6, 12, 27, 28, 29, 30, 33, 36, 37, 39, 41, 43, 46, 49, 56, 57, 59, 62, 73, 80
….
….
….
0
Comment
Question by:dkim18
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 3

Accepted Solution

by:
gkatz earned 100 total points
ID: 9843680
depending on the file size it may not be a good idea to use a regular array.  Arrays are allocated in the stack and the stack has a limitted size.  Instead it may be a good idea to create the array at run time.  This has the added advantage that you can specify the size as a variable instead of a constant (once you create it, the size is still constant) and it is created on the heap instead of on the stack which means that you have a lot larger storage size.  To do so use the new operator.

double* myArray = new double[arraySize];

afte that you can use the array just like any standard array.  Just don't forget to deallocate it when you are done.

delete [] myArray;

-gkatz
0

Featured Post

On Demand Webinar: Networking for the Cloud Era

Ready to improve network connectivity? Watch this webinar to learn how SD-WANs and a one-click instant connect tool can boost provisions, deployment, and management of your cloud connection.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
This article shows you how to optimize memory allocations in C++ using placement new. Applicable especially to usecases dealing with creation of large number of objects. A brief on problem: Lets take example problem for simplicity: - I have a G…
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

624 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question