Beginners - C++ Forum - March 2012 (Page 56)

A function to calculate the factorial value of any integer

#include <iostream> #include <ctime> #include <cmath> //int factoriel (int mynum) { // int factorial(int mynum); //int *array = new int ; ...

[5 replies] Last: #include <iostream> #include <cmath> using namespace std; int Factor... (by Ken777)

by Claymz

Methods outside Class's scope

Hi all, why are the bolded methods outside, and what effect has this approach? Also, why are operator+ and operator- methods followed by const and again, wh...

[3 replies] Last: Vec operator/(float b, const Vec2& a); It should be obvious that thi... (by ne555)

by Reema Alqerm

need a help in strings im hopeless

i need to write a c++ program that prompt the user to enter a sentence consist of three words using the function getline, then the program should print the thir...

[4 replies] Last: If you "know everything about it", then you should have no problem wit... (by packetpirate)

by Joshua Spears

Simple Menu and Loop with functions

I am trying to display a menu using string Menu(), but I do not see the program at all when I run it. Can anyone tell me what I am doing wrong? #include <...

[4 replies] Last: I think that instead of using of string menu() it would be better to d... (by vlad from moscow)

by andrix10

Need some help

#include <iostream> using namespace std; int main () { char input; // menu input variable bool quit = false; // loop control variable ...

[no replies]

by justis1

c++ won't compile

c++ won't compile it say errors and high lights #include <iostream>

[9 replies] Last: @Azagaros, are you asking me? I use gcc 4.7 but it doesn't really matt... (by Peter87)

by Need4Sleep

Problem installing SFML(missing file?)

Ive spent an hour now wondering what is wrong with my installation of SFML. I followed the tutorial exactly but here is what i get: Code: #include <SFML/Syste...

[13 replies] Last: That was actually the thread I found to solve the issue. Did nothing f... (by ResidentBiscuit)

by Hydrasin

Help with Documentation translation

Hi, I was just trying to understand the dereference operator portion of http://www.cplusplus.com/doc/tutorial/pointers/ and was wondering if translating it to t...

[1 reply] : De-referencing is simple to understand: When you de-reference a point... (by closed account zb0S216C)

by nullcoding

Integer types and overflow

Hello! I'm very much a beginner at programming. I'm teaching myself by trial-and-error whilst my partner is taking a basic C++ class at Uni. He wrote most of...

[5 replies] Last: The second option sounds like a lot of things I've read about. The on... (by nullcoding)

by chameleon

Templates

I want to create a small library for matrices. But I want to be fast: (no OpenMP/OpenCL) - After testing 'virtual getValue' is 5 times slower from inline. - v...

[1 reply] : Have a look at: http://en.wikipedia.org/wiki/Template_metaprogramming#... (by LB)

by dango1

ctrl + F5 doesn't work

I want to compile without debugging and using ctrl + f5 combination. However, even though with that combination program shouldn't be terminated when it reaches ...

[1 reply] : um, which development environment are you using? If you read the firs... (by Azagaros)

by cdseasholtz

Converting from a typedef to a struct

I was recently given the task in my class to change a bit of code(included below) from a typedef to a struct. My teacher did not really go over this process in ...

[11 replies] Last: Crap. Thank you for that. I just realized that I had it written correc... (by cdseasholtz)

by WhiteWind

Help with vector<object>...

I'm getting confused with making vector functions work when using a vector of objects. push_back(); is not a member function of TheObject, so when I try to do...

[8 replies] Last: a deque is a good choice if you don't care about the underlying arrang... (by Bench82)

by alfaceor

Initialize array in a class

Hi people i have a little conceptual problem here class Polymer { public: Conformation(int N); Conformation(char *filename); virtual ~Conform...

[1 reply] : Conformation( ) ? What's that? They aren't constructors. Simple ans... (by closed account zb0S216C)

by agent99s

help with homework assignment

I need to write a program to read an integer number and find its number of digits. Example 3425 has 4 digits and 485567 has 6 digits. The program should b...

[14 replies] Last: I see. Thanks for the explanation . I didn’t know that there was ... (by agent99s)

by hannah

C++ Darts Simulation help!

Hello, My name is Hannah. I am currently studying game design and am in the middle of being taught C++. We've asked for our first assignment to write da...

[4 replies] Last: Why is using functions "c style"? Do we not use functions in c++...? (by ResidentBiscuit)

by mohammadhavaei

using operator overloading

hey every one, i have a class and it has a private member (Pixel) of structure type. the structure has 3 integer variables. basically im trying to make an cla...

[1 reply] : Usually, it's good practice to only overload bitwise assignment operat... (by closed account zb0S216C)

by Jesus805

Help with displaying text after cin

Hello, I'm trying to figure out what library/class I would use to display text after the cursor Example Header Goes here 1. Do this 2. Do that Please...

[6 replies] Last: Ill check it out, thank you (by Jesus805)

by closed account 4zA7ko23

Loading libraries problem in vs2010

Hi I am using opencv2.31 the latest available. For Tbb I downladed the latest Tbb from net. I am using Vs2010 Ultimate. Now I have gone through the youtube vi...

[1 reply] : Can u provide the code here? (by atjm88)

by chiritso

Switch help

Hi i want to make a switch witch have a letter instead of numbers like Switch(adasd) case y: case n: is it possible

[3 replies] Last: So long as the case label evaluates to an integral type, it should be ... (by closed account zb0S216C)

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Beginners - March 2012 (Page 56)