49,765 Topics
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| | Hello, I have a problem creating a template class with copy ctor and cast operator to class of base template (using gcc 4.2). The program compiles if only one of them is defined but is not compiling if both (copy ctor and cast operator) are defined. The compiler error is … |
| | Need some help on text file compression.... Text File Compression. The text file compression must be able to perform the following functions: • Able to compress a text file and generate an index file • Able to decompress the file • Able to show the time taken for compressing and …  |
 | Hi All, For long now have tried to get Python bindings and none is there. jlgm suggested me to try ctypes and I dived in. But there are few examples on using ctypes for new bees like me. I tried to take lame_enc.dll (The file made me to learn ctypes … |
| | This is my example code: [code] #include <vector> std::vector<int> v; int main(int, char **) { std::vector<int>::const_reverse_iterator iter = v.rbegin(); if (iter != v.rbegin()) // or v.rend(), whatever, just problematic { } } [/code] Is this supposed to compile correctly? Using g++ 4.2.4 it does. Using [quote]sbox-i686-linux-gcc (GCC) 3.4.4 (release) (CodeSourcery … |
| | hey everyone im making an gui in C++ which needs to retrieve windows registrys such as windows version etc. however im stuck on some code i was hoping for some help please. [CODE] void GetSystemInformation(void) { float fprocessor; HKEY hKey; DWORD processorspeed; DWORD datasize; RegOpenKeyEx(HKEY_LOCAL_MACHINE,"Hardware\\Description\\System\\CentralProcessor\\0",0, KEY_QUERY_VALUE,&hKey); RegQueryValueEx(hKey,("~MHz"),NULL,NULL,(LPBYTE)&processorspeed,&datasize); fprocessor=float(processorspeed); if (fprocessor>1000) … |
| | ok so i got my code done but my logic in my code is off and my outputs are not coming out the way they should. so the following is a notepad file which is being read into my program 1231 washington, george 300 3431 adams, john 600 5767 jefferson, …  |
| | Privet/hello/salut/halo/hola! I have the following code: [code=c] #include <iostream> #include <iomanip> #include <fstream> #include <cstdlib> using namespace std; using namespace Finder; int main() { ifstream in( "1.dat" ); Event *P = new Event( sphere ); double px, py, pz; while( in>>px>>py>>pz ) { P->AddParticleRaw( px, py, pz ); } in.close(); … |
| | Hello All, I was trying to make dll to play with ctypes in python. I'm not good at C++ and I studied it lightly looong ago and only familiar with very simple thing. After search the net I found smo instructions but when I try to Build (with CodeBlocks), I … |
| | hi guys just a query basically I have created the following program, which takes a word then shows the position of a certain character. Now what I need to do is then print out each characters position in the array: so for example T E S T 0 1 2 … |
| | the program that im having problems reads in a txt file sums both arrays of data, puts the sums into some equations and out puts the results in a txt file. [CODE]#include <iostream> // include all headers needed here #include <cmath> #include <cstring> #include <cctype> #include <fstream> #include <cstdlib> using … |
| | I have a program in were you enter numbers. each different # set you enter goes into an array ( section[] ) but now what I'm trying to do is add 2 different sections together. [code]for(int x = 0; x < stoppoint; ++x) { track = track + 1; if(section[x] … |
| | Hi everyone, I have worked some more on my code and this time I am getting some error that I am not able to resolve. Please help me. The error says: "initialization skipped by case label." Please show me how to resolve this. Here is the code. The error has … |
| | Ok, I never really understood vectors and I have write a program that uses a vector of Employee references to store the company’s payroll. My program will load the payroll by reading a file (employee.dat) that contains one employee’s information per line. Each line of the file will begin with …  |
| | I hsve developed this code I am having trouble with the Account manager to perform the task it meant to do when i put N for New customer it exits the program and i shouldnt can anyone hepl me with this problem [code] #include <iostream> #include <string> #include <cmath> #include …  |
| | hi people, i am able to make the following code work if i don't use a destructor: #include<iostream> using namespace std; class CVector{ public: int *x, *y; CVector(); CVector operator+ (CVector); CVector(int,int); // ~CVector(); private: }; CVector::CVector(){ x = new int; y = new int; *x=0; *y=0; } CVector::CVector(int a, … |
| | Some of the code has been omitted. I am trying to write a DFS function to traverse a maze. It will eventualy add the nodes to a tree that I will traverse once I get the DFS working. Currently it goes into an infinite loop and I cannot figure out … |
 | Hey again guys and gals, getting a really weird error when i attempt to print out doubles in my program i have to store several double values, but when ever i print then out all i get is -9.25596e+061 instead of what should be printed out. [code=C++] string line; stringstream … |
| | I'm still fairly new to C++ and templates and I had a question revolving them. I'm currently doing a tutorial on templates and wanted to mess around with the code. This is what I have so far: [code=c++] //mypair.h template <class T> class mypair { T values [2]; public: mypair … |
| | Hello, I implemented the follolwing function: [code] template< int n > struct GetNRands{ static void fillVector( set<int>& v, int max ){ if( n > 0 ){ int f; int pos; do{ f = rand(); pos = f * max / RAND_MAX; } while( v.find( f ) != v.end()); v.insert( pos … |
 | win2000 , visual studio 2005, console application (sorry my poor english) I dont know very well how start explain whats my problem.. Im making a sudoku game (not unic solution, just random =P) the problem is the loop where it suppose to verify the sudoku rules and make the corrections … |
| | Hi All, I'm trying to figure out how to pass an object to a function by constant reference. If I write a single class, can I write a function in this class that accepts an object of this class by constant reference? If so (or in any case) how does … |
| | Hi , I am working with MFC SDI application, when i open any project [ SDI ] default icon gets loaded [ ie MFC icon ] , i am not able to change it , even i tried modifying the icon file, only the ABOUTDialog box icon changes, at all … |
| | i have an array of 16 things, now 8 of them have to be chosen at random so basically what i want to do is random(CHR/2) like choose a random number from CHR/2 (as there are 8 not 16 now) what code would i use because that doestn work |
| | [COLOR="Red"][B]Hi all... I tried to maked Stack with Dynamic Array but ........[/B][/COLOR] [ICODE]class Stack { private: int *SS; int size; int t; void Expand(); public: //constractors Stack(); ~Stack(); Stack(const Stack & Original); //operations Stack &operator= (const Stack& RHS); bool Empty(); void Display(); int Pop(); void Push(int Value); int Top (); … |
| | Hello guys! Hope everyone's doing good. Well I desperately need the code for insertion in 2-3 trees, can anyone of you kindly help me out??? Actually I missed one of the lectures given in this regard, therefore i'm facing few daft problems, I tried to some extent but couldn't make … |
| | Dear All, I have to remove some content of a file, but I can't find any api to use. Best regards!  |
 | Why does following does not work ?? [CODE] #include<iostream> using namespace std; class point{ float x,y,z; public: point(float f_x =1.0, float f_y=1.0, float f_z=1.0); void getxyz(float &x, float &y, float &z); }; point::point(float f_x, float f_y, float f_z) { x= f_x; y= f_y; z= f_z; } void point::getxyz(float &x, float … |
| | well the title kinda describes it. I tried LOWORD(lParam) = somenum; and it threw me an error saying that the left side valye has to be a 1-value |
| | I have problem in counting the number of letters in the strings entered by the user. CAn anyone suggest something in the following codes? [code=cplusplus] #include <iostream> using namespace std; int main() { char* str; cout<<"enter the string to count the number of letters in it."; cin>>str; cout<<str.length; return 0; … |
| | How can i get the digits out from file and the player who scored the most points? Input file to read from Match A score: 3-1 [U]Mark Peter Peter[/U] Match B score: 1-1 [U]Jim[/U] underlined - player who scored the points [code=cpp] #include <iostream> #include <fstream> #include <string> using namespace … |
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