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General C++ Programming - February 2014 (Page 23)

[Peer Review] - GLUT bypassing global idle function limitation

Before I go gung-ho on this tangent, I'd like some feedback. Basically, my beef with GLUT is that the idle callback function is global and cannot be assigned...

[no replies]

by Pierreseoul

Random number

I cant compile this code as Im at work and the computers are security protected, So i''l have to wait until i get home to test this, but im pretty sure im wrong...

[11 replies] Last: but think in this case it's not c++ but math :) (by Chriscpp)

by manudude03

big numbers, big runtime

I would still consider myself a beginner, but I was trying some of the middle Project Euler problems (at least those that looked doable for me), and I'm having ...

[1 reply] : Since the brute force approach is going to take that long I doubt that... (by Plover)

by superdaz83

Build Errors on the following code

I get build errors when trying to compile the following: #include <iostream> //Define a struct called AdvertisingIncome struct AdvertisingIncome { i...

[2 replies] Last: ah yes not a good idea not sure why I put those there! Thanks. (by superdaz83)

by MNoronha

Websockets + C++

So, I've already learned in school how to program in C++, and I know a bit about OO programming and all, but I'm together with a couple of friend trying to comp...

[4 replies] Last: Thank you all for your help :) it really does help, now I just got to ... (by MNoronha)

by Gyiove

fread of fwrite have problem with line char '0a' (half line char)

Hi! Im trying to write and load file to from unsigned char vector but there seems to be problem with new line char. code: void fg_readfile( char *fname, vec...

[2 replies] Last: Thanks! I now readed writed file like this: f = fopen(fname, "wb"); //... (by Gyiove)

by xkara

dynamic allocated arrays c++

I'm trying to create a function that uses dynamic allocated arrays instead of vectors because I want to see how they work. Basically, this function asks the use...

[1 reply] : You should use std::getline() to read the line, rather than operator>>... (by kbw)

by badgirl

Hashing

Hello, can someone help me with a program to implement hashing of text files in a directory to find files with the same content?

[1 reply] : If you want to learn about popular hash algorithms (such as MD5 and SH... (by Catfish666)

by spk

How to make a long time periods if/while statement

Hi everyone, I started a new project and I have some little problems I'm making a program that would run 24/7 and that could be run on multiple computers that a...

[7 replies] Last: Thank you a lot, that's perfect, very helpful. (by spk)

by Bingocat4

Winsock error for no reason?

I've been leaning how to do multiplayer stuff with a library called Enet and Allegro. Today I decided to work on it some more. When I tried to run it, it gave m...

[2 replies] Last: Oh wow nice simple solution. Thanks! (by Bingocat4)

by divide

atomic float add ?

Hi, I'm desperatly trying for a week to add one float (at some place in memory) onto another float (at some other place), in an atomic way. Meaning, multiple...

[10 replies] Last: > won't handle cases where my float is a very large number, or a very ... (by JLBorges)

by mikester44

Pausing Your code (Examples included)

So here is a problem i'm facing. And i researched it a little bit but probably not enough. When you run a simple program in visual C++ 2010 it will run strai...

[2 replies] Last: 1) Remove any code that pauses your program 2) Right click on your pro... (by Disch)

by northfly

c-style string array and pointer

I was told that if I define char *cstrp; char cstra ; then the cstrp can be treated as cstra, and so I can also use cin>>cstrp; but when I write the fol...

[7 replies] Last: Some reading for you: http://www.cplusplus.com/faq/sequences/strings/c... (by Duthomhas)

by Bourgond Aries

GMP Fixed Bit Size Integers

Hey! I've recently familiarized myself with GNU MPFR and GNU MP (arbitrarily large number libraries). So far, I need a specific requirement that I can only see...

[no replies]

by masschamber

Accessing Objects within another object

I'm currently trying to access a variable contained within a base object from another completely different object and I continually get error messages. I'll a...

[10 replies] Last: I put the variable in the public part of the class and it works. How c... (by masschamber)

by MarkyMark

Loop question

#include "stdafx.h" #include <iostream> using namespace std; void func(void); static int count = 10; int main() { while(count--) { func(); ...

[4 replies] Last: What do you mean? What is the conditional statement? The conditional... (by MikeyBoy)

by daillem

ARRAYS(two dimensional)

How will you code a program that displays the maximum value in a two dimensional array of integers. the program will ask the user to input the 4x5 array? i k...

[4 replies] Last: thanks! <3 (by daillem)

by closed account o3vUpfjN

Squaring in For Loops

I need to make a for loop without : using the math functions like pow, sqrt, etc. or an if-statement. I can only use the basic arithmetic functions like +,-,*...

[1 reply] : Squaring means you multiply the number with itself (not with 2). (by Peter87)

by christofuh

Help! What would be the coding for this?

I'm a senior graduating and I waited so long to take C++! My workload is a little ridiculous and I have a pretty good understanding of C++ and how to write out ...

[3 replies] Last: Here's the link to the actual problem: http://web.njit.edu/~kapleau/te... (by christofuh)

by venkatacplpl

Communicate within in the same host through sockets

Hi All, I am new to socket programming and wondering if we communication is possible within the same host through socket programming(though there is no nee...

[no replies]

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