General C++ Programming - C++ Forum - December 2010 (Page 4)

hi all dears,,......i am using graphics first time ....in c++.. can any one help me how to draw flowers in boundries of the page ...like to draw circle we use ...

[1 reply] : what library are you using? (by hamsterman)

by akayrak

Shortest Path

How can we use Dijkstra's or Bellman–Ford's algorithm to find shortest path in a graph whose some of edges are affected if we go specific vertices. Such that,...

[3 replies] Last: I think no one knows a solution? (by akayrak)

by barzanyadis

IBM's International Programing Contest Final Question!!!

The 1998 22nd Annual acm International Collegiate Programming Contest World Finals sponsored by IBM Problem F Polygon Intersections Input: poly...

[1 reply] : Here's how I see it: Let's name the polygons A and B. First step... (by hamsterman)

by erga

a problem with sin calculation.

#include <iostream.h> #include <math.h> #include <conio.h> #include <fstream.h> #include <iomanip.h> #include <stdlib.h> int main() { const floa...

[1 reply] : well, i bypassed it and it appears there is nothing wrong with calcula... (by erga)

by JoR

List/Tree for access by identifier string.

Hi Guys. I'm looking for a data structure to store instances of a specific class in, that should then be easily accessible through a public string attribute ...

[2 replies] Last: Thanks, exactly what I were looking for. :) (by JoR)

by computerpublic

Finding Odd Numbers

I am trying to write a short and concise C++ program to find the following: 6 non repeating odd numbers who's sum equals 60. The smallest odd number equals to...

[2 replies] Last: @naratu9333 we can eleminate one of the if checks #include<iostrea... (by soumyaxyz)

by lovelyhakeem

string

#include<iostream.h> void main() { char *str ={"lovely","hakeem"}; cout<<sizeof(str); } its size is 8 ;can any one tell me how????? tnx ...

[11 replies] Last: ok...tnx to all........good help..i will avoid that mistakes again....... (by lovelyhakeem)

by Jarec

Expansion of two-dimensional array

Hi, this is my first topic in this site. So I'm going to go directly to the problem with reallocating two dimensional array with realloc, because I want to exp...

[8 replies] Last: The compiler was not the problem. I am using GCC myself. The code I po... (by rocketboy9000)

by Manmay

number series program (1,2)

since a beginner please help me with the solutions to : WAP to print 1) 1 1 1 1 1 1 1 1 1 1 2) 1 2 3 4 5 6 7 8 9 10

[26 replies] Last: I apologize for my behavior , but finally am able to solved my own do... (by Manmay)

by lovelyhakeem

strings

#include<iostream.h> void main() { char *str ={"lovely","hakeem"}; cout<<sizeof(str); } its size is 8;can any one tell me how????? is str is pointer h...

[2 replies] Last: Since you're using C++ just use std::string. It's very awesome. (by Kiana)

by privateabstract

Float miscalculations

I'm trying to write an OpenGL program to demonstrate simple physics but I'm experiencing float miscalculations. According to the Visual Studio debugger, when...

[10 replies] Last: I'm not sure if it will solve your problem, but try to replace float w... (by Jarec)

by timothyguo

print prompt

int main() { string ex; while(true) { cout<<'>';//print prompt cin>>ex; if((! ex.compare("quit")) || (! ex.compare...

[2 replies] Last: I have made it done. Thank you! (by timothyguo)

by manintiet

error C2666: '==' : 2 overloads have similar conversions

I have an overloaded comparison (==) operator which works fine until I add an overloading of char* operator. It gives following error then: ----------------...

[5 replies] Last: Wow !! It was such a clear explanation.. Thanks to both jimc and Hamst... (by manintiet)

by manintiet

error

Guys, can u plz help me out. Why is following error coming twice in the folowing program? error C2679: binary '=' : no operator defined which takes a rig...

[2 replies] Last: Hey Thanks Gloucestor !! I have understood. (by manintiet)

by rambleberry

A switch repeating itself to default in a loop

So basically, i'm writing a small game in c++. What you see is the skill point distribution function. This is just a small solution I created to try and isolat...

[3 replies] Last: Okay well, I don't know if any of you have solved the problem, but I h... (by rambleberry)

by yoonkwun

Default Size of Integral Literal Constant

void foo(void* arg) { } int main(int argc, char** argv) { foo((void*)1); return 0; } Is there any standard that compilers are to meet that d...

[6 replies] Last: If it is a void*, you have to simply know the original type and cast i... (by Zhuge)

by vagelis

the vectors seem to run very slow

how can i run in release mode in visual studio??

[6 replies] Last: For arrays, you have to know some dimensions at compile time. I haven... (by jimc)

by systemctlmuser

Hash algorithm with integer data

Hi, I am working on a project where I need to use hash algorithm. We have decided to use "AP hash algorithm" as at "http://www.partow.net/programming/hashfuncti...

[1 reply] : pass it in a more compact base, like maybe 64. That will probably comp... (by rocketboy9000)

by themerc32

Trying to make a hangman/language translation game but failing.

Im creating a language translation program and have really confused myself. I have two strings, one English and one another language and by using a switch/case ...

[1 reply] : go through the strings and store each word separately in a vector. th... (by rocketboy9000)

by PiMaster

Keeping old data in a multidimensional array

Something like 6 months ago I made a class that encapsulated an array of any number of dimensions using cstdarg, but I never finished it because I couldn't figu...

[3 replies] Last: Blaargh, just realized that my solution wouldn't work... (by PiMaster)

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General C++ Programming - December 2010 (Page 4)