General C++ Programming - C++ Forum

Operator function taking references shall accept literals too

Hi, I'm working on an output stream class just like ostream. For formatted output I use the << operator taking a reference as argument (e.g. "&int"). Now ...

[9 replies] Last: In the documentation of this site it looks like it did use references... (by Bazzy)

by export

Drawing shapes in OpenGL

I have the following code which draws a ball and a cube. The ball works perfectly, but the cube wont show in the top half of the screen. #include <GL/glut.h> ...

[3 replies] Last: Now the cube is very low below the camera. Try changing line 2 to (0, ... (by hamsterman)

by harsh4u89

static and extern keywords

I am confused in static and extern keywords When we declare static variable i in one file a.cpp and then use extern THAT VARIABLE i in b.cpp than what ope...

[1 reply] : FileA.cpp #include <iostream> static int i; // This variable rest... (by guestgulkan)

by NGen

Processing Lists

In my game I'm taking a list of function pointers that are called within a loop to get everything processed correctly. My problem occurs when a function calls ...

[3 replies] Last: What you could do is set your list element to a null function pointer,... (by Galik)

by ultifinitus

C++ instance class changing?

Ok so I'm writing a chess game- which you can see here https://sourceforge.net/projects/ultifi-chess/ Essentially my problem is with the pawn...

[3 replies] Last: That is EXACTLY what I was looking for! Thank you so much! (by ultifinitus)

by Seraphimsan

sfml multithreading

I'm currently working on a CLI based audio player. But I'm having trouble with sfml's threading class. I've privately inherited sf::Thread and overridden th...

[1 reply] : Nevermind, I fixed it. The main thread was finishing before the input ... (by Seraphimsan)

by Skillless

template question

bool Compare2( S * s1, S * s2) You need to pass pointers as you can see, so this should fix it; a.STest(&d1, &d2); and also; static bool STest( ...

[5 replies] Last: Can we delete a particular row from a 3*3 dimensional vector?? if yes ... (by sshresth01)

by RavikumarNingegowda

error C2228: left of '.b' must have class/struct/union type

Dear experts, I am getting the error mentioned in the Title. #include<iostream.h> struct ABC { ABC() { } int a; }; templa...

[1 reply] : 1) The header is called iostream, not iostream.h 2a) "class interface... (by Athar)

by fisher55

Problem with template classes

I have this classes: class FunctMenuScreen { public: virtual ~FunctMenuScreen() = 0; virtual void operator()() = 0; }; template<class FunctObj> ...

[4 replies] Last: Thank you. How could I possible forget that!!! Thank you very much. (by fisher55)

by jwolfe

Dynamic memory issues

I'm working on a dynamic stack, and I keep getting a heap corruption error when expandStack() is called. const int INIT_STACK = 200; class stack { private...

[4 replies] Last: Awesome. Thanks for your help! For anyone interested, the final versi... (by jwolfe)

by rutharanga

How to Compare two strings??

I want a method to compare two strings in c++. Is there a method like ".equals()" in java to compare strings in c++?? I got stuck with this matter in my prog...

[3 replies] Last: Yes you can do it like that. You can also use the built in comparison ... (by mcleano)

by Null

uncaught exception handler?

Is it possible to write a custom exception handler for uncaught exceptions? I have this code: #include <exception> using namespace std; class exception:...

[2 replies] Last: OK, thanks. (by Null)

by amiref

What is the problem of my code ?

In this code , Although I dont use from reference (&) in overloading "=" operator but my code doing correct . what is problem ?

[3 replies] Last: Well, since you're passing op2 by value in operator=, the object is co... (by Athar)

by amiref

friend function and operator overloading

hi my friend why we can not use friend function to overload the "=" operator ? tnx

[3 replies] Last: Because operators are meant to keep their original meaning, this way y... (by Bazzy)

by KarlisRepsons

no heap memory for short strings? 0-short?

I was reading something like 'std::string doesn't use free store (heap storage) for short strings'. It made me question if it's been implemented in any of STL i...

[4 replies] Last: The implementers are free to make it as they wish. E.g. this way: ... (by xoreaxeax)

by amiref

&&& BIG Problem In Operator Overloading &&&

Hello Everybody I Have A Question . Suppose That We Have This Class : ///////////////////////////////////////////////////////////////////////////// clas...

[9 replies] Last: I have question in that link that Grey Wolf said in above topic : W... (by amiref)

by rutharanga

splitting a string into sub strings( word segments)

I have used a method called istringstream to split the string input into word segements.And it was successful. But the problem is it displays the end word seg...

[2 replies] Last: Thanks a lot. It works. I have just understood the mistake i have done... (by rutharanga)

by rutharanga

Parsing command line arguments to main and for a function other than main

hey guys, this programme works when I'm not using a separate function 'genWordSeg' and writing it only using main(). But when i'm going to do it according ...

[3 replies] Last: Thanks a lot you both.... Actually these are the only errors that i c... (by rutharanga)

by JustAWalrus

Objective - C

My primary goal is to work on macintosh and iphone application development. I currently know basic C++ and I was wondering if I should move to Objective - C.

[10 replies] Last: hey OP...and everyone else for that matter, have you guys not heard of... (by cole321)

by DexterMorgan

Hashtables: Any optimization when objects are not deleted ?

I recently read about perfect hashtables which guarentee O(1) worst case time. But I was crushed on reading that it requires that all the objects be known in ad...

[6 replies] Last: @DexterMorgan The two classes differ in the internal data structure th... (by mtrenkmann)

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General C++ Programming - July 2010 (Page 9)