49,761 Topics
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| | I'm having issues with a rather simple program that prints a string. I have two .cpp files, main and login, with login.h header file. The problem at hand is that when I want to print the string in main.cpp that was entered from login.cpp - nothing is shown in which … |
 | So i haven't figured out what the point of constructors are i am just learning C++ and am seriously having trouble with it, i do not get why...well i kind of get default constructors because it initializes the variables but what about a constructor with arguments and the member function  |
| | Hey guys i am new to c++ and i was practicing read/write specific line from an ini file. My File [CODE] // browser ini file // options resolution 100 300 fullscreen 1 account "silentcoder" [/CODE] My Code [Prints out the whole configuration file since my code said to do so] …  |
| | Hi all! I am a newbie to openCV programming and my task is to make a comparison between the CPU functions and the corresponding GPU functions available in the openCV library.I'm going to port a number of algorithms to GPU, using openCV gpu module. I have been having troubles finding … |
 | I have to accept three numbers from the user using cin into 3 variables. If the user enters non integers,I must reject it and ask for a new one instead of that. So,here is my attempt: [CODE]int a,b,c; do{ cin.clear(); while(cin.get()!='\n');//remove failure bits,clear stream if wrong input cin>>a; } while(!cin);//while … |
 | Hey all, I'm looking to upgrade my compiler and I was wondering if there is a compiler that is fully c++0x supported yet. If not is there one that is mostly supported? I am currently using MSVC++ 2005 express. I would like to stay in the MSVC++ family since I … |
 | Hello everbody Simply put; [I]rand() is driving me nuts[/I]. I've been trying to get my teeth into Dev c++ (v. 4.9.9.2) for the first time and couldn't find anything anywhere which helped me anymore. Nearly all this code is IDE generated or copied from examples - I'm just trying to … |
| | [code]#include <iostream> #include <cassert>//what is the use of this??? #include <algorithm>//how to convert in turbo c++ and what is the use this??? #include <vector>//is this array in turbo c++??? using namespace std; int main() { bool result;// what is the use of this?? string s("abcde"); string s2("aeiou"); vector<char> vector1(s.begin(), s.end());// … |
| | hello every one , i am working on this code for a week , but i have a problem that every time i try to debug it i receive many errors i can't understand them here is my code [CODE]/* Simple program to compute the two possible roots of a … |
 | I am trying to write a few functions that work when compiling for windows AND linux, and I can't seem to find the linux equivilent of a few windows functions. If it's of any relavance I intend to use GCC to compile for linux and VC++ to compile for Windows. …  |
| | I have this hw problem, but I can't figure out what the problem is. If I run this code I get an assertion error. Also if i run without commenting out the return outStream line, it won't compile saying I'm converting an istream to ostream. Any clues? [CODE]#include <iostream> #include … |
| | What is the maximum length of an argument in the command line? It is not the same under DOS and Linux?  |
| | I made myself a little autoclicker in c++, but after it's done, I want the console window to come up again, so the user can decide wether to do it again, or end the program. How do I do that? |
 | So.. I want information on drawing on top of a DirectX game, like how Steam does it. I would consider naively trying to obtain a "device context" of the client area of the game's window, and then try some 2D drawing functions. D: I don't know if that's going to … |
 | Hi, I know how to do it in the console, but when it comes to Win32, I can't I've tried all those #includes(with Windows.h), and it doesn't let me. Anyways, if you guys know how, please share, I'd like to know. |
| | Hi everyone, I want to implement an ADT Queue class (pointer base) use Template with following public interfaces: enqueue,dequeue,dequeueAll,peek,and size. I have 2 problems: 1.not sure how to dequeueAll which is removes all elements from the queue with Postcondition: size( ) returns 0 2.for dequeue and peek I need to … |
| | Hey, Does anyone know how to cpy from one file and redirect to another. I know I have to use the ofstream but I'm stuck. [CODE] while (!in1.eof()) // while not end of input file { in1.getline(current, 100); // read a character from input file out1.in }[/CODE] I'm stuck. I …  |
| | Hello, I was working on my Server - Client comunicating programm for moonth or more, when a tricky issue had met me. I works so: Server does certain commands if client types certain commnads, and I need need the Client to do certain commands if Server types certain commands. I … |
| | Me too I have a problem with deep copy help me.. this is my code i am using visual studio 2008 [CODE]#include<iostream> #include<string> using namespace std; class Street { private: int stretNumber; string name; int numberHouses ; int *ListHouses ; public : Street(); Street(int, string, int); //Street(const Street & otherStreet); … |
| | Hi, I have following code but it is very slow during sorting. [CODE]list<double> fitness; for(i=0;i<250;i++) { fitness.push_back(Random Number); } fitness.sort();[/CODE] Is there any other method about list sorting ? Thanks in advance ico |
| | i want to return a string array so i can use it in my main function. how do i do this? [CODE]#include <iostream> #include <string> using namespace std; string test() { string a[5] = {"Hello","World","How","Are","You"}; return a; } int main() { string b[5]; b=test(); for(int i=0;i<5;i++) cout << b[i] << … |
| | Hi, instead of writing this [CODE] SomeFunction<Class>::Bind<&Class::MemberFunction>(this); [/CODE] I want to provide an easier way to call "SomeFunction". I have one solution using a macro like this: [CODE] GET_EXAMPLE(Class, &Class::MemberFunction, this); //... #define GET_EXAMPLE(ClassName, MemberFunctionPointer, InstancePointer) \ (SomeFunction<ClassName>::Bind<MemberFunctionPointer>(InstancePointer)) [/CODE] But in order to avoid the use of this macro I'd … |
| | Hej I got this problem while trying to build project in VS2010: [b][b][code] fft_test.obj : error LNK2005: "void __cdecl fft(int,double (*)[2],double (*)[2])" (?fft@@YAXHPAY01N0@Z) already defined [b]1>in fft.obj 1>fft_test.obj : error LNK2005: "void __cdecl fft_rec(int,int,int,double (*)[2],double (*)[2],double (*)[2])" (?fft_rec@@YAXHHHPAY01N00@Z) already defined in fft.obj 1>fft_test.obj : error LNK2005: "void __cdecl ifft(int,double (*)[2],double … |
| | Hey everyone, I have a problem in a project of mine and was wondering if anyone could offer any suggestions. I'll try to explain as best I can what the problem is and if anyone feels they can offer some assistance, I'll send them the source code over a private … |
| | I'm interested in creating a bruteforce program. What is the most computer resource efficient method to count in base 62? (1,2,3...a,b,c...A,B,C) |
| | I have a the following snippet of code [CODE]string const& symbol::at(int index) const { assert(index<symbol_data.vector::size()); return symbol_data.vector::at(index); }[/CODE] This does not compile successfully, instead, I get complaints about [CODE]error: ‘template<class _Tp, class _Alloc> class std::vector’ used without template parameters[/CODE] Now, I think this has something to do with the fact … |
| | Is it possible to do this: Print out something on the screen, when the user presses enter, it should print out something else, but on the same line: cout <<"Hello "; -wait for an enter- cout <<"there"; with it looking like this: Hello there ? |
| | Hi, I really need help with understanding how to solve an exercise. Create a new textfile with the name 'studentinfo.txt' and write following and save: Marie Anderssen 29 Alexander Lind 35 Gholam Payro 32 Zlatan Ibrahimavic 26 Write a program that read the information from 'studentinfo.txt' and calculates the average … |
| | Hi, I have an array of hWnds, and I need to change each one of their background colors. They're all without a border(titlebar, and such). I've searched Google, and IxQuick, and I need an answer please. Thanks so much for the help. |
 | I'm new on using class. Other than declare as friend class or declare static for the specific file to share variables/functions. Is there any other way? I have inherit few classes and wrote into few *.cpp file. I can't extern a static file, so is that mean i just only … |
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