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General C++ Programming - June 2012 (Page 2)

Hello. Why is it that constructor is called just once in the following code? struct widget{ widget(){cout << "ctor called" << endl;} }; widget f(w...

[22 replies] Last: Framework (2534) Jun 27, 2012 at 3:29pm hooshdar3 wrote: "+I got the... (by hooshdar3)

by Arslan KAAN

Complex Programming (1,2)

I've just learned the basics of c++ basics but all i am able to do is cout numbers and stuff my teacher said that all the programming is done in c++ even in win...

[20 replies] Last: Generally speaking, all generalized statements are wrong. Apart from ... (by closed account z05DSL3A)

by lalebarde

how to initialise a vector of vectors with existing vectors ?

Hi all, I would like to initialise a vector of vectors with existing vectors, like this : vector<vector<uchar> > vectorOfVector = {mVec1, mEVec2, mVec3}; ...

[14 replies] Last: Great ! I could install gcc-4.7.1 for test. But still, in C64, I ca... (by lalebarde)

by cgleckman

Vector Array and Functions

So I am trying to pass a deck of cards to a function then the function uses the deck to fill a vector array with people * 3 (3 cards per person and people is th...

[7 replies] Last: Edit: You were right, I forgot the & in the prototype. Thank you (by cgleckman)

by MrHutch

libcurl question

Has anyone used libcurl much? I'm using it to make a small program that downloads a file from a http site. Having some trouble at the minute, program keeps cr...

[4 replies] Last: Awesome, I've clearly messed it up somewhere then. As I said I'll fix... (by MrHutch)

by SuperStinger

fgetc returning -1?

Hey all I have been working on a tile based game (birds eye view type of thing) and im reading a map from a text file (or multiple). Everything seems fine unt...

[9 replies] Last: I think i may have found the problem, in one of my previous functions,... (by SuperStinger)

by MarkBadong

Webcam Image Processing

Hi there! First post on C++ Forums. :) I am currently a graduating Computer Engineering student and have a certain idea for our senior project which requires...

[14 replies] Last: Check this out guys: http://ahmedorabi.blogspot.com/2011/05/this-wa... (by MarkBadong)

by rajesh4114

Simulation of Monitoring of Internal Applications&Hosts of a Company

In order to do this simulation Will c++ has all the capability. For reference Please check the below URL, Kind of solution i wanted to implement in my project....

[no replies]

by kapesu8

Have I understood some OOP concepts correctly?

Like if I would want to store a bunch of objects somewhere would I do it somehow like class Object { public: bool Instanced; std::string Name; Object(bo...

[3 replies] Last: Read this: http://www.cplusplus.com/reference/stl/vector/ Example ... (by IceThatJaw)

by Rodan

Trouble reading/storing BMP

Hello. I'm trying to write a program that reads in a BMP file and outputs some simple data specs, like height and width in pixels. This is just to make sure...

[1 reply] : // #pragma pack(2) // found this as a 2 byte alignment... no idea wha... (by closed account o1vk4iN6)

by i2Fluffy

Tic Tac Toe Problems

Can someone take a look at this and point me in the right direction. I have been having trouble with this for a couple of days now and can't figure it out. I'ts...

[5 replies] Last: Also you should edit checkBoard so that is general for BOTH players. F... (by eraggo)

by GliderKite

Overload operator !

How can i overload the ! operator? Do you have an example or any references for operators overload? Thanks.

[3 replies] Last: The only rule for overloading the logical negation operator is that th... (by closed account zb0S216C)

by AaronTrahan

.eof() Trouble -- Infinite loop

I am trying to read from a file that has a title of a book, number of copies of said book, and then the price. Each item is its own line in the text file. The n...

[3 replies] Last: Thank you so much for the help. I tried different ways to put that for... (by AaronTrahan)

by closed account EAXiz8AR

cin buffer problem

Ok so I have this problem where if the user inputs two words, only the first word is outputted. I tried solving it by editing my program to the one below, but i...

[2 replies] Last: When you press enter a new line character is added to the stream. cin... (by Peter87)

by Khosravib

Equivalent for getch()

Hi Would u pls introduce something standard as an equivalent for getch() and getche(), that is something that 1) waits for a single keystroke, and 2) returns a...

[1 reply] : There is no equivalent function in standard C++. (by Peter87)

by Xaotique

DWORD Array Length

I've tried Google, though I couldn't find any that worked. sizeof don't work here, so how would I find the length? Array: DWORD offsets = {0x378, 0x14, 0x0...

[8 replies] Last: You can if you will pass an array by reference. For example void f(... (by vlad from moscow)

by CMarco

split string

I have created this basic examples: #include <algorithm> #include <boost/algorithm/string.hpp> #include <string> #include <vector> string s = "a,b, c ,...

[12 replies] Last: Hi, I was able to solve my question using str.find and src.substr(f... (by CMarco)

by luza

STL find a pointer in vector question.

Would anyone know which is the 'best practice' to find a pointer in a vector. i have these 3 solutions: typedef std::vector<CBaseCalculation*> BaseCalc...

[19 replies] Last: Ok, now I get it :D It works because the vector is a subset of all ... (by TheIdeasMan)

by marcoskivo

string and parsing

Hi, I have a problem. If I have a string, for example "(3,4)" or "(8,9)", how can I understand that there are two numbers separated by a comma within two bracke...

[4 replies] Last: there is a little problem! if s="(8,9" (without close bracket), the sc... (by marcoskivo)

by cniper

array fill problem

what am i doing wrong here?? i am supposed write a program to write a random number in the range (0,100) in an array. getting error C2440: '=' cannot convert fr...

[6 replies] Last: thank you all. It worked like charm here s the final code #include <... (by cniper)

June 2012 Pages: 123 4... 33

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