General C++ Programming - C++ Forum

int vs double vs short i understand that computers dont really have limited memory problems, so what is the standard that everyone uses now?

[2 replies] Last: good info! Thank you! (by justhappy)

by cotro

Loop stop condition not working due to "invisible" characters

Hello I am currently reading a file that has a format like this: 2.5437667456 0.38745628423 0.342573653788 2 0.538756284345 -1.37875463465 -3.4747457474...

[11 replies] Last: It might be the way you are reading your string are affecting it, or y... (by MiiNiPaa)

by prestokeys

How to benchmark a compile-time action?

I've written the following binary search of a sorted template pack of integers. std::cout << BinarySearch<65, 1,5,7,8,11,12,18,25,32,65,111,150>::value << std...

[3 replies] Last: Another question I have is suppose I want to write a meta binary searc... (by prestokeys)

by wh1t3crayon

How to cast an abstract object as an object of a derived class? (1,2)

So I have a vector of abstract clas objects and I'm trying to cast a specific element as an object of a derived class, but I'm not sure how. Here's some pseudoc...

[21 replies] Last: [quote=wh1t3crayon ]The code example that you provided is no doubt a g... (by TheIdeasMan)

by Tay123

Credit Card Program

My professor wants us to write a program that computes and outputs the penalty on an unpaid credit card balance. The program prompts the user to enter payment ...

[4 replies] Last: penalty = balance + balance * 0.02 create a function that takes a bal... (by Smac89)

by myeninkululeko

run length coding

how can i create run length coding using dynamic arrays

[4 replies] Last: yeah it gives me a little idea thankx (by myeninkululeko)

by Aadi Aadi

Please help out me to correct this program please.

Write a program that takes a four digits integer from user and shows the digits on the screen separately i.e. if user enters 7531, it displays 7,5,3,1 separate...

[2 replies] Last: Please explain it more (by Aadi Aadi)

by rockgtr

Function Overloading

I keep getting the error ") expected". #include<iostream.h> #include<math.h> float area(float x) { float z; z=3.14*x*x; return z; } float area(f...

[2 replies] Last: Thanks a lot Ashely Brown. (by rockgtr)

by ub40boy

Pseudocode Help PLEASE

Hi guys need help with 2 questions Out of the following the most important layout in Pseudocode is: a. Variable initialization b. Indentation c. How wel...

[3 replies] Last: you can always PM me bro.... (by shadder)

by DragonOsman

Help Needed with Visual Studio Express IDE

I need some help compiling code in the Visual Studio Express 2013 IDE. I'm trying to compile this code: #include <iostream> using namespace std; ...

[1 reply] : Nothing to do with visual studios. You have to #include <string> to ... (by TarikNeaj)

by N495t4r

Code lines

I have been wondering, can I call a code line just as I can call a function by writing its name with parentheses? for example 5. int main ( ) { ...

[13 replies] Last: There is labels and the goto option, but usually it's not considered g... (by DaBOSS)

by Aaron Vienneau

Postfix Vs. Prefix

OK, So I understand for built-in data types, it doesn't really matter -- in terms of optimization -- which operator you use: postfix or prefix; as the compiler ...

[14 replies] Last: I just told the compiler to emit assembly instead of object code. How ... (by Albatross)

by trials26

Does catch(...) really catch everything?

I was doing some messing around with exceptions, to test whether they did what I wanted, and to get a better feel for how they work. I was surprised that I coul...

[1 reply] : So would you say that catch(...) only catches C++ language exceptions... (by Peter87)

by trials26

move semantics/constructor

discussion pertains to this video: https://www.youtube.com/watch?v=7LxepUEcXA4 I'm just starting on move semantics, r-values, etc. I get most of this video ...

[3 replies] Last: Yes that sounds about right. (by Peter87)

by n1becker

this pointer does not update when vector resizes

I have a vector of objects. The objects have several members(several ints, a couple bools, and a string). One of the member functions has a chance to spawn a ...

[no replies]

by KrtinN

While Loop Does Not End

My while loop does not seem to end: while (check=1) { cout<<"Please enter the number of people: "<<endl; cin>>people; if (people<6000&&people>0); { che...

[10 replies] Last: Any time (by shruti Biradar)

by rajcrec

Need to open an instance of excel from C++ code and then attach to it

My software is an excel plug-in. I need to do some unit-testing through Visual Studio ( debug mode ). We are using the C++ unit test framework embedded within V...

[8 replies] Last: If you're going to go that route then I can say from experience that i... (by Computergeek01)

by Indianna32

Help with program for class!!!

So I am writing a program for class and cannot seem to get anywhere else with this. It is supposed to be all in main and open a document and then do a series of...

[2 replies] Last: Ok, even I can read it now. Let's just talk about D, "Find the sum of... (by kbw)

by TpkEnix

Study Guide Help C++

*Am I right? : Square::print(); *Am I right? : Rectangle::print();

[3 replies] Last: We're not going to do your homework for you. Have a go at writing the... (by MikeyBoy)

by gunman353

[HELP] Vector of vectors or structs

So I took on a project which is beyond my current level and understanding of C++. Basically I am writing a program to accept user defined matrices, then to perf...

[1 reply] : Here: vector < vector <double> > fullMatrix(int); you're declaring... (by MikeyBoy)

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General C++ Programming - April 2015 (Page 27)