49,765 Topics
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| | Hello, Im rather new to C, but I was struck with one curiosity as I delve into it. From what I understand, there is not supposed to be any support for string-datatypes in the language itself; you need to import libraries to get this support (where the strings are actually … |
| | what all do i have to do to make this work... this is my class and functions... and the errors are at the bottom... do i have to overload operators or is there a much easier way? thanks. and i know the return function isnt written yet. [CODE]#include <iostream> #include … |
| | On windows operating system How can we make a window an active window (focussed window) using c/c++ programming. I tried using SetForegroundWindow() but it is not working. AllowSetForegroundWindow() will work on Windows XP? Any how please give me an idea regaurding this. |
| | hi this is srikanth from india. it would be highly appreciated if a separate forum is put up exclusively for C language.it would be very much useful to beginners. clubbing c and c++ in one forum is a little uncomfortable for the user to browse c related threads. |
| | hey every1, can any one tell me how to draw a ball or a circle in an console application vc++ and make it move around various coordinates.. basically the ball shud move arnd 4 directions. i tried printin chars but dont quite know how to go about paintin the ball … |
| | Hi i have a programming problem ;) I have a set of number(there is no limit must be dynamic) and i want to find out the unique numbers from the set i.e numbers which are not repeated. Observation: 1) No. of element in set should not be limited 2) Algorithm … |
| | I'm making a program (using MFC) that opens a file using the c-style FILE* format rather than C++ style streams. I'm doing this because I'm lazy, and so I can use as much pre-existing code as I can. When I close the program, a destructor is called. [code] CGrid1Doc::~CGrid1Doc() { … |
| | I did a search of the forums here and found that there are a number of unanswered questions on this subject and a few that are ambigious. My problem is a bit unique however. I need to know if it is impossible to connect to a database with C++ using … |
| | Hello ladies and gents, Have a few questions about the following example that is given: [code] #include <iostream> #include <fstream> using namespace std; int main() { char ch; int n=0; ifstream ff("aa"); if (!ff) { cout << "Can't open file aa for input.\n"; return 1; } ofstream gg("bb"); if (!gg) …  |
| | How to i get cubic numbers into a program? Ive tried ^3, but in this line: x = creat^3; y = lines*20; z = x+y; cout<<"Your zenii for this post is " << z << ".\a" << endl; If i change the cout to call out x it calls it … |
| | Hello, I'm at work and wanting to install Microsft VC++ V6 on me box. However I've left the CD at home and was wondering if I could download the demo / trial version?  |
| | Hi every one Please help me: How can i found, if there is any disk in a removable drive (floppy drive or cd drive). I am programming with C++Builder. If there is any Win API function for this. Thank you very much. |
| | Hi all. I imagine there is a key word like there is asm for asembly but I don't know what it is. Never tried it in visual basic 6. Using net now and learning c++ whould like to know. Any help greatly appreciated. TIA. :confused:  |
| | Hi I am from a Visual Basic background, and if you're still reading this after that admission I could use your help.. I'm trying to learn VC++ and MFC and I'm just trying to work this out. In VB, you could have either a Winsock ActiveX control or use the … |
| | hey guys, have a challenge for you guys, i am making a rpg game in c++ and need some help figurin out the creatures, and items the player will have, i know i won't get many replys to this so don't expect to get all of what i am looking … |
| | hi, i have created a game using TC++.. a very basic game.. and i want to use the same in VC++ could anyone please help me with this. i shall be grateful to you guys.. i think that there may be a problem with using the various header files in … |
| | Hello, I'm working on a authentication project which I don't want to run through a compiled .exe (to easy to hex edit or crack). So I was thinking about having the user enter the password in a compiled MFC App. When user clicks, "Authenticate" the entered information will be sent …  |
| | I've been working on this code which generates random numbers, however I need it to generate random numbers between [B]5.15053396E-5[/B] and [B]0.013365[/B]. Is there a way to define rand() to only generate random numbers within this range? What I tried to do was to generate a number between 110607 - …  |
| | I'm using a program called Dev C++. Sometimes I am able to solve the syntax erros and sometimes I am not able to do so cause I do not understand it although it's logical. There is an error message which displays "warning: assignment to 'int' from 'double'". I had to … |
| | Hello ladies and gents, In my book, I'm currently reading about the use of creating your own operators << and >> for in- &output. There's been given a small example that goes like this: [code] #include <iostream> using namespace std; class vec { public: vec(float x1=0, float y1=0) {x = … |
| | [QUOTE]:cry: Please help me,I'm a bigginner programmer. I have to send a project after tomorrow . My project is "Student Library". Programmed : -->Shor menu for user to select : a)add : student id,name,score(mid,final) b)delete c)modify d)list by id like this -- ***and in add menu user must not insert … |
| | [code] #include<algorithm> #include<string> #include<vector> #include<functional> #include<iostream> using namespace std; class WordCompare:binary_function<string,string,bool> { public: bool operator()(const string&a ,const string& b) { if(a.at(0)==b.at(0)) return true; else return false; } }; int main() { vector<string>MainText; vector<string>TempString; vector<string>::iterator i; MainText.push_back("All"); MainText.push_back("art"); MainText.push_back("is"); MainText.push_back("quite"); MainText.push_back("useless"); TempString.push_back("quite"); TempString.push_back("unique"); i=search (MainText.begin(),MainText.end(),TempString.begin(), TempString.end(),WordCompare()); if(i==MainText.end()) cout<<"The substring is not … |
| | for example double t[]={0.12,0.3,7.0,4,4}; or int t[]={1,2,3,4} i wanna ask what "t+1"stand for respectively.if t is the first adress of a array,then t+1 will get to another physical adress right?a back to back address?thanks. |
| | If you don't mind helping me a little, I have a few questions for you: 1) Why is it possible different data types(which should be different sizes) be the same size in memory? Take the sizeOf() function. I read where it's possible that you can pass it a long and … |
| | Here is my entire code. I am getting a segmentation fault ( I love pointers for this reason!!!!) off of one of my head pointers i believe. Can anyone help me find/ fix this? please, and thank you. [CODE]/* The purpose of the program is to simulate a queued line … |
| | Is there a (builtin) way to compare the contents of two stl maps? (Assuming of course that the maps have the same data types). I thought of writing this myself, but iterating through each map and seeing if the contents are found in the other map (and then doing the … |
| | Hello, in the past i've used MS VC++ v6, however since uni this year are going to teach us .NET i thought it would be a good idea to grab a copy of visual studio.net , however when opening my old *.cpp files they dont wanna run. the blue run … |
| | HI: Maybe some of you read my thread about how to sort a file that contained 17 students data: ID LASTNAME FIRSTNAME 10 SCORES My program had to read this file, sort the names alphabetically, then calculate average score and letter grades. Finally send all data to a new file …  |
| | First I get an error for not declaring the variable, then my { is somehow causing this mishap. I am in need of serious help of this program. Can someone provide me with a head start? I'm using visual studio.net. First I get an error for not declaring the variable, … |
| | Hey guys, I was just wondering if you know any websites that have good tutorials on classes? Thanks. |
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