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I'm pretty sure that I answered this within the absolute first paragraph (and the program is actually C++ that uses this method because it's quicker):





No, my first port of call was looking...

You suggest that I should learn C# by some other way apart from programming in C#? Should I give Go a bash to see if it helps instead?

Hi all,

My C# is VERY basic, but I've been given the task of converting a C++ program into C# anyway. This part of the program is pretty simple, and is trying to read a certain amount of bytes...

I've changed the initial array to include 0 and 1 to match the positions of the vector up.

Thanks for the help anon, here is the finished code:



vector<int> primes;

int n, numToCheck;

Thanks for your continued help.

My second for loop has changed to:



for(int j = numToCheck; j < primes.size(); j += numToCheck)


though I am still wondering how to mark the numbers in...

Thanks for the comments.

I was using two vectors as the plan was to remove them as I go, and not just mark them, which looking at the algorithm, is the wrong way to do it. I started with the...

Hi all,

I am currently trying to implement a Sieve of Eratostheneses in C++ as part of a book I am learning. The objective is to find all of the prime numbers between 1 and n in a list. To...

Has anyone mentioned Bjarne Stroustrup's P3 book yet?

After purchasing many, many books focusing on learning C++, I still rate this as the best. Hell, I happen to think that this is the best...

So, when exactly would one use the

Creature creature;
Creature creature = new Creature();
Creature* creature

initialisations?

Can anyone think of any use cases to split up how you would...

Hi all,

I'm just trying to learn Visual C++ and I'm having a problem with the OpenFileDialog control. I'm trying to drag out the filename selected in to a text box, but MSDN has given me broken...

Hi all,

I have a quick question about DX9. I have recently started with it after a while using OpenGl, kinda trying to expand my knowledge base a bit. Anyway, I downloaded the DXSDK (June 2008)...

Hi all,

I have a quick question on the usage of the extern keyword. I'm trying to get a variable to be of global scope, but as it is of a custom type, I'm not sure how to use extern and Google...

Thanks, can you explain what this does though please as I'm a bit confused :P

I'm familiar with modular arithmetic already but I'm not sure how to implement a mod 26 function inside the code.

As I'm using ASCII to shift the letters, could I just say something like:


...

Hello,

I'm currently learning C++ and have decided to write a Caesar implementation. I have the code working but lack error checking (dealing with spaces, going back to start of alphabet) and am...

Thanks for the help everybody. For those who were interested, I went with a combination of Salem's and Bubba's answers.

The easiest way of explaining to him was to first tell him why computers...

Hi all,

I've got a question which I didn't know how to answer, and where else to post it.

I program pretty much everyday and recently, my 5 year-old nephew has been sitting with me and asking...

I'd completely forgottten about the Atari ST! While I didn't use it to program, it was a great gaming rig. I still wonder how many hours were wasted on that playing Bubble Bobble and Elite instead...

If you're using DevC++ or a similar IDE, you might want to think about putting getch() in there so you can actually see the result without having to run it from command line.



printf("&#37;d...

After reading the Windows 3.1 thread, I got thinking. How did all of you start out in your programming endeavours?

What was the first language you used and how did it happen?

As I mentioned, I...

Thanks to twomers for saving me. I thought I made a terrible mistake then :)

I've still got a copy of Windows 3.11 for Workgroups on an old Compaq Laptop!
I use it for when SEGMENTATION FAULT! and such things give me a headache and I want to play about in QBasic.

I still...

I would imagine that Deimus is using either Visual C++ or DevC++ to write C code as it automatically saves it to a cpp extension. If you are being asked to save a C file as the cpp format, I would...

I edited the current code in to the top post.

The input file is just literally a text file with the words "hello middle middle end" inside.

*Fixed*
I had already taken out the free the tree/close file after I had posted, as it was one of those things that I had played with and not taken out. The fscanf I completely missed :)


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