General C++ Programming - C++ Forum

I am writing a program in which one of the features is a screen capture process which then saves the captured image to a bmp file. the screen capture aspect an...

[15 replies] Last: I learned from just reading the online reference material on MSDN. ht... (by Disch)

by ramako

passing pointer THIS to copy constructor

Hi guys, I am trying to make use of the copy constructor using the pointer this, but it gives me a segfault. Is it possible using the this pointer to create ano...

[4 replies] Last: It does seem to be some of those, ill look more into it, thank you guy... (by ramako)

by luckyali444

Guys please help me with C++ Filing

Hi, i want to save list of my data into a file. Pls tell me the best way to do it. This code only displays the name i enterd and 0 values of age and id. Once ...

[no replies]

by hermanny

delete element from a txt file

I am doing a program, where I must sort a really big file. I must use a metod that creates a lot of txt files. I want a function that is capable of deleting the...

[no replies]

by luckyali444

Need Help with C++ Filing

Hi, i want to save list of my data into a file. Pls tell me the best way to do it. This code only displays the name i enterd and 0 values of age and id. Once ...

[no replies]

by soheilghafurian

How to know more about IDE?

Hi I've been programming math algorithms for a while, but now I need to improve my skills to use graphical toolboxes (like itk and vtk) and design interfaces...

[no replies]

by GPP

change another classes varibles

if there two classes Dog, and Cat In the constructor of Dog I have this line of code BlackCat = new cat; now I want to change BlackCat's varible ca...

[no replies]

by soheilghafurian

rewriting members of a derived class

Hi If we derive class CB from class CA, which already has a method function CA::method, and then redefine the method, what will happen? (assuming that the me...

[3 replies] Last: Thank you very much for your good answer and example. Now I understand... (by soheilghafurian)

by readysetgo

C++ Divide By Zero Parser

Hi everyone, I am interested in writing a script/tool to parse C++ code in order to find lines when division is being used. I guess this could be accomplishe...

[4 replies] Last: You will need some regular expression engine. If you can't use boost r... (by Silvermaul)

by clarkk

pseudo-random number generator problem

Hi guys im trying to make my own pseudo-random number generator from the algorithm below using the kent chaotic map. { x(n)/m, 0 < x...

[2 replies] Last: it works now, thanks alot! (by clarkk)

by ahura24

STL & io

please help me how can i store data of a list to binary file?! for exmple : void main() { list<int> l; ofstream fout("a", ios::out | ios::binary ); ...

[8 replies] Last: no body know how can STORE object of a list to file and READ them ... (by ahura24)

by suthers

Strange bool output

Hi Guys, I'm going nuts trying to figure this out, any help much appreciated. I have the following comparison, all data types are double: cout<<(d->getLow...

[5 replies] Last: LB, it seems even though I was reading from the same file floating poi... (by suthers)

by adityamehta

How to specify inputs using scanf in a particular format

Hi, I want to make a program that accepts the radius of a circle and co-ordinates of the center. I want the user to specify the inputs as: radius:{(x,y)} ...

[2 replies] Last: if( 3 == scanf( "%d:{(%d,%d)}", &radius, &x, &y ) ) (by bruceteen)

by misserwell

how to get the nearest char in a string

a question. how to get the nearest char in string , eg. there is a string is : "abcdefdegfgh", then we should get the 'g' , because the it's distance is 2,...

[2 replies] Last: h9uest , thank you very much , I got , I will review hash table firs... (by misserwell)

by anotherghost

Trouble with function args.

I'm making a simple program to multiply polynomials as an exercise to help myself understand classes and such. I have narrowed down my problem and what I don't...

[5 replies] Last: Thanks CreativeMFS, that turned out to be the problem. Must have left... (by anotherghost)

by DJZybez

Manual ASCII Checker?

Hey guys, I have sort of a simple sounding thing I would like for some help to accomplish on C++. I'm using Dev-C++ and I wanted to make a system that cycles th...

[1 reply] : If you looped between i=97 and i<123 you could print all the lower cas... (by buffbill)

by SnakeJam

Determine Size of a va_list

I am trying to make a function that accepts a variable amount of character sequences without having to specify how many arguments are being passed when I call t...

[1 reply] : The only way is to do just that - somehow specify the size as one of t... (by LB)

by navarromoral

Problem with STL

Hello everbody! I just have a problem with the vector class. In the following code line 16 causes the compiler error: c:\mingw\bin\..\lib\gcc\mingw32\4.5.2\...

[5 replies] Last: ostream objects (ofstream is derived from ostream) are noncopyable. T... (by jsmith)

by nand

can an array be declared by a non-constant value?

Hello, There is much documentation on the internet about always declaring arrays by constant values, eg. int array ; because NOTE: The elements field with...

[10 replies] Last: vector will work but the code that i have pasted earlier is working (... (by firedraco)

by closed account zb0S216C

I Want Your Suggestions

I'm creating a small class that's similar to a vector, but it's length doesn't dynamically change( a fixed-length array basically ). I want some of your feature...

[18 replies] Last: [quote=Athar]requiring no allocation and deallocation Every object al... (by closed account zb0S216C)

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General C++ Programming - June 2011 (Page 5)