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General C++ Programming - July 2011 (Page 22)

I'm writing a winsock send function that sends data that is passed with a string. I need to use the string because I'm converting it into binary (our server pr...

[3 replies] Last: Additional info : 0xCCCCCCCC is a special memory value for uninitializ... (by bartoli)

by chulio

generate specific percent of elements in a matrix

Hello World, i have the code below: #include <iostream> #include <math.h> using namespace std; int main(void){ int m ; int counter = 0; ...

[1 reply] : If you want each number have a probability P% to be -10, and (100-p)% ... (by hamsterman)

by redchannel

Storing objects into an array

Im trying to store objects of type MapEntry in to an array that is in another class but i'm not quite sure on how to approach it. Specifically because the array...

[3 replies] Last: You could add a public member function Add(const MapEntry& entry) to y... (by Galik)

by anthony1947

Help needed forming a binary sequence

Hello, The overall concept on this piece of code is to transmit a message that comprises words (decimal numbers with a range -127 to 128). To do this, I need...

[2 replies] Last: Hello Luc Lieber, Thanks for this suggestion. I believe I can use t... (by anthony1947)

by gabrielsaraiva

Write/read single bit in file.

Hello everybody, I'm a little problem, need to write / read a single bit in a file. My input bits are in an array of booleans. I've tried a lot of things on...

[9 replies] Last: For completion, I have found one way that the C++ standard insists on ... (by Moschops)

by Rahul Raja

graphics in codebloc & vcc

graphics.h doesnt works in codeblocs or visul cpp...then how should i use to display graphics or convert programs with graphics.h header file in codeblocs?

[9 replies] Last: Graphics.h is a graphics library from borland. I ran a program which ... (by Cody39e)

by closed account S6k9GNh0

Virtual Classes

I'm somewhat new to the concept. It's a feature of C++ I've been avoiding for a _long_ time for reasons less than good (other than the constant vtable overhead ...

[1 reply] : Hi, Your solution works at compiled time as well. If you want to use ... (by screw)

by misterpeter

I need a Tutor...^^

Hello everyone I really need someone to help me with my skills on C++... I am currently a 2nd year student in college taking up the course Computer Engineering...

[7 replies] Last: Hello Peter, What are looking for C++ books, C++ Video or a mentor wh... (by minix)

by marty2756

formatting strings without sprintf

Hi is there any native class in C++ that provides same capability that sprintf for strings ? I mean, formatting directly to a string instead of : char t...

[2 replies] Last: Thanks! (by marty2756)

by Ana Developer

STL library problem

Hello all, I am having a hash_map with key: char *. I have defined it like this: struct eqstr { bool operator()(const char* s1, const char* s2) c...

[3 replies] Last: In Visual Studio 2008, hash_map stuff is in namespace stdext, not std.... (by m4ster r0shi)

by Troy

C++ - binary to string

Ok, I last posted about my string to binary conversion and got your help. But now I need help getting the binary back into ASCII characters. I got it to print i...

[1 reply] : Line 3 must be: stringstream ss; (by modoran)

by zhaonanavril

virtual fuction

Hi there, I am declare a pure virtual function in a based class, this base class has two derived classes, but I realized I only want to implemented the pure vir...

[1 reply] : Sure. Just implement it in the one class only. Of course, the other de... (by anonymous23323124)

by Troy

C++ - Convert const char* to binary

Ok, I have created a function that is supposed to take a passed string and convert it into binary.. Since this only converts each character once, I had to creat...

[4 replies] Last: Thank all of you so much! It works! (by Troy)

by NickT

Processing blocks of bytes.

This is my first post so before I move on to the relevant matter, I'd like to say "Hello World" to everyone! Now, on to business. As the title says I am atte...

[3 replies] Last: Thanks guys! I've actually realized a mistake while trying to accompl... (by NickT)

by jgirl2412

please help with a do while loop question

I created this program to all the specs that our teacher required except for having it loop to allow the user to enter salaries until the sentinel value is ente...

[7 replies] Last: Thank you guys so much, I took a lot of your advice and now the progra... (by jgirl2412)

by Shatronics

Problem with typedef struct.

Hello, I'm trying to work with equalization with the bass libary. But I don't know how to create the structure needed. The structure used is: typedef struc...

[6 replies] Last: Okay: Another problem has arrived. I use the struct to set the equali... (by Shatronics)

by HenriK

How should I initialize - problem with static member variables

Hello once again. I was learning more about this static -keyword. Interesting and useful keyword I have to admit and I learnt you can use it create class statu...

[3 replies] Last: Never mind, it works. I had used these variables outside the class sta... (by HenriK)

by nimacasino

how to get numerical solution for an equation

Hi everybody i want a numerical solution for "p" in this equation and i don't know how to implement that! the variables W, n, m are known and have initializ...

[6 replies] Last: Assuming the function isn't badly behaved, instead of calculating the ... (by kev82)

by TheDestroyer

Direct assignment with operator=

Hello guys :) I created a class, and defined operator= as follows: template <typename T> MyClass& operator=(const vector<T> src); but the proble...

[2 replies] Last: Ah! thank you so much, pal! by defining the constructor it worked ^^ (by TheDestroyer)

by KeyForge

Entity Management with Components

Hello, my current task for my game engine is to write a system for managing the games entities. I've read up about the component design pattern and it seems lik...

[1 reply] : In order to store these things polymorphically, they will all need to ... (by jsmith)

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