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General C++ Programming - July 2015 (Page 15)

Need some help with a prime number loop

#include <iostream> using namespace std; int main() { int k; int prime = 2; int count = 0; int i = 1; while(prime<100) { while(i<=prime...

[4 replies] Last: your code, indented #include <iostream> using namespace std; int m... (by ne555)

by Ozzy69

the STL algorithms use iterators, not containers, why?

Help me, please

[3 replies] Last: You can easily wrap algorithms to take just a container. #include <io... (by naraku9333)

by SomeAmazingGuy

Can someone help me understand the concept of the DXGI_FORMAT enumeration?

I am trying to make my first direct x game but I am having some difficulty trying to understand some of the concepts. The concept that is really getting to me i...

[1 reply] : "Four-component" means that each pixel has four components, "component... (by helios)

by bishoposiris

int __cdecl main(int argc, char **argv)

This is the main function declaration for a Winsock Client Source Code. Can someone explain what the __cdecl is? And why are there two *'s in front of argv in...

[3 replies] Last: I see. Crossed out the incorrect information. (by Zhuge)

by leonid1990

compilation error

Hello! Can anyone explain me why if I make the function get_fName a const function, it returns _fName only with the casting (char*)? Without casting, it not com...

[2 replies] Last: That question was not formulated as well. This is another question: ... (by leonid1990)

by cppnoob25

How do I work with pointers here?

I'm trying to change my pointer to point to the address of x. So that it would work like it would if that commented piece was used. #include <iostream> ...

[12 replies] Last: Alright, I understand it now. Thanks for the help. (by cppnoob25)

by codingnovice

Tracing table question

Hello there. I am completely lost at what this question is asking. I appreciate any help hand trace the following & show the value of n & the output int n...

[1 reply] : you should go step by step and get the output and the value of n 1. ... (by Gamer2015)

by Jacob16682

IRC Bot troubles

Ok, I have a new problem for you all. This time it has to do with IRC's and networking. I am trying to make an IRC bot in C++ using SDL_NET. So far I can get co...

[1 reply] : Ok, I got it working. All commands needed \r\n in front of them. For e... (by Jacob16682)

by mliw

Jumping into C++ - 12 Days of Christmas problem

This is the question: Write a program that outputs the results of the 12 days of Christmas using switch-case (hint: you might want to take advantage of fall-...

[2 replies] Last: hint: you might want to take advantage of fall-through cases I think... (by dhayden)

by jmlong

Why I can not get right number?

Hi, I have raw data in a binary file. I try to count how many Byte meets this condition: its value equals 128, and the Byte after it 255 bytes equals 255. The ...

[4 replies] Last: Thanks. I check other data file. It works. The previous one may be bro... (by jmlong)

by YazanTayyah

need to solution of this two program

1) Write a C++ program that reads an integer N from the keyboard. Then declare two character arrays called CA and SM of size N. then your program will keep rea...

[1 reply] : Please note, that this is not a homework site. We won't do your homewo... (by MiiNiPaa)

by Jacob16682

SAT Collision Issue

Ok, I am kinda new here so hi guys!. I am having a bit of an issue with a collision detection system I am trying to get working that uses the Separating Axis Th...

[10 replies] Last: Time to apply it to my awesome game now that I got it working. (by Jacob16682)

by happykiller

Code::Blocks problem with SDL

Ok so I have set up code blocks for SDL in my flash drive and it is working perfectly. Now i've created new project in destkop folder and set it up the same way...

[no replies]

by faazm

Key Press Event

I want key press event to be triggered when prompt to press any key in c++. I did not find any helpful solution to this. Yet I tried "std::cin.get()". Also I wa...

[2 replies] Last: Thanks for reply! I have gone through ncurses but didn't found helpful... (by faazm)

by qwer1234

weird class ctor

#include <bits/stdc++.h> using namespace std; class C { public: int ft, sd; C(int foo,int bar): ft(foo), sd(bar) { cout << "ctor 1\n"; } C(const...

[3 replies] Last: It is not a good idea for constructor to have side effects which can m... (by MiiNiPaa)

by amarjit86255

Problem with if statement.

hello friends... have a look of this code. fstream fout(file,ios::ate|ios::out|ios::in); cout<<"\n"<<sizeoffile()<<"\n"; if(sizeoffile() == 0) { cout<<"...

[16 replies] Last: Please post your current full code. Have you tried running it in a deb... (by dhayden)

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