49,761 Topics
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| | OK, just a quick question. What is a good sound library I can use to play files? On a slightly unrelated note, what is one I can use to generate sounds (tones, like 8 or 16 bit.)? I would very much prefer it to be open source and platform independent. … |
| | ok so i have been sitting here for over 2 hours trying to figure out what is wrong with my code and why i keep getting the same 2 error messages energy part 2.cpp(104) : error C2059: syntax error : ']' and energy part 2.cpp(105) : error C2447: '{' : …  |
 | hello, for one of my programs I need to acquire the decimal off of a number, for example, if a double has value of "123.45" I need an int to have the value "45". to do this, I have the following code [CODE] double value, tempValue; int decimalValue; value = … |
 | How do I make a variable a random value between 1 and 10 each time the program loops? I want to have a "I'm thinking of a number between 1 and 10..." thing, and then you have to guess the number, but I don't want the number to be the … |
| | Hi all, Does anyone know if it is possible to write a C++ macro, which will force the compiler to construct Pascal/custom style string constants during compilation? The basic idea is to avoid unnecessary run-time construction from C-style to custom-style string literals. For example, when evaluating the expression {String2 = … |
| | I'm trying to find a good, easy to use GUI for an inventory in my game, all I really want them to be able to do is select items, maybe move them around into different slots, and be able to modify variables based on where things are moved. I plan … |
| | Hello friends, I am facing a linking problem in VC++8.0 compiler. Suppose I have a library, say A.dll. In this library I have a file, say x.cpp. Within this file there is a extern const variable, like [code] ..... __declspec( dllexport ) extern const long ERROR = 100; ..... [/code] … |
| | I'm starting to learn c++. I use vista so lots of ide's dont work for me. Right now im trying visual c++ but things like cout are not understood when compiling. This may be a compiler issue. I all would like to know is a good basic (for beginers) ide … |
| | [code] #include <conio.h> #include <graphics.h> #include <math.h> #include <stdlib.h> #include <dos.h> void serp(int level, int Ax, int Ay, int Bx, int By) { int poly[4]={Ax,Ay,Bx,By}; [COLOR="red"]setfillstyle(SOLID_FILL,YELLOW);[/COLOR] not working the way i want. if (level>0) { serp(level-1, Ax,Ay ,(2*Ax+Bx)/3,(2*Ay+By)/3); serp(level-1,(2*Ax+Bx)/3,(2*Ay+By)/3,(Ax+Bx)/2+sqrt(3)*(Ay-By)/6,(Ay+By)/2+sqrt(3)*(Bx-Ax)/6); serp(level-1,(Ax+Bx)/2+sqrt(3)*(Ay-By)/6,(Ay+By)/2+sqrt(3)*(Bx-Ax)/6,(Ax+2*Bx)/3,(Ay+2*By)/3); serp(level-1,(Ax+2*Bx)/3,(Ay+2*By)/3,Bx,By); } else fillpoly(2,poly); } int main(void) { int graphdriver=DETECT, … |
 | I am trying to make a simple engine with WinAPI and I encounter this problem: [code] class Window { .... public: [COLOR="Red"]static HINSTANCE hInst;[/COLOR] .... }; .... .... .... int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { MSG msg; [COLOR="Red"]Window::hInst = hInstance;[/COLOR] .... .... } [/code] The … |
| | The function that I am having a problem with is in the middle of this seperated from the rest of the code. [code=c++] #ifndef GRAPH_H #define GRAPH_H #include <string> #include "queue.h" using namespace std; class FileOpenError // Exception class -- cannot open input file { }; struct EdgeNode // Structure … |
| | Hi, I'm curently creating a command line tool in VC++ 2008 Express Edition for myself which requires reading many files and merging them together. Everything is OK and during debugging (F5) there is not a single problem, but at run time (ctrl+F5) a problem with fread occurs at the same … |
| | how can i make the computer block when im about to score, like do something like this XXXO? and how can i make the computer to make an OOOO for it to score too? im not allowed to use internet libraries in this one, need help |
| | I'm about to start writing a genetic algorithm program which will be able to find the highest/lowest/whatever else values of variables required for an equation, and have come upon a point about which I am uncertain. I do not know whether I should store and work upon the values as … |
| | I have a qns. How can i take out the number in a basic string input and assign them into different integer variable? Not a file input example - string input = "23/4/56" or "23.4.56" int a = 23, b=4, c = 56 [code==cpp] #include <iostream> #include <string> using namespace …  |
| | I made this program but I need to figure out how to exit the program if the user does not input A,B,C,D, after three attempts. I'm new at building programs and I would be grateful for some help! #include <iostream> using namespace std; char studentAnswers(int); int main() { int i; … |
| | ok, i've got a question that i'm having trouble with Write a program that generates the factors of a number entered by the user. This program has the following requirements: 1. The user must enter a positive integer. If the user enters something else, your program should output an error … |
| | Hi i am bilal n i am new here i need to make a program on Human simulation....... Well what i need is a code. when i am executing a program like am printing 'x' for infinite many times during execution when the console is printing x infinitely what can … |
| | hi everyone.. i just want to know which of following operator can't be overloaded. a)== b)++ c)?! d)<= hoping for a Answer ASAP with explanation.. thanks.. |
 | The sequence Fibonacci numbers begin with the integers 1,1,2,3,5,8,13,21....where each number after the first two is the sum of the two perceeding numbers, i want to write a loop to display this sequecnce numbers less than 500 . do we need to write 2 loops ? its not working for … |
| | Hey all, I want to write a proxy for a local computer Basically i run a game server that talks [udp] to multiple people. However the server can be crashed. I want to write a program that captures the output of the server and sends it out on a different … |
| | ok .guys .i m sorry for my previous msg.Can anybody tell me how i can take user 's value,then divided into 8 groups and then i have to make node for that 8 values.Here is my code [ICODE] #include<stdio.h> struct node { long int data; struct node* llink; struct node* … |
| | Hi, Thank you for your support. I am new to C++ and have started working with classes. I understand constructors, accessors and mutators. I have a program that I am working on and I am implementing my classes. I have six classes and have completed four. The top two, Calendar … |
| | hey, this is my first time posting so please don't be too harsh ... I am trying to write a program that allows the user to play rock paper scissors against the computer. I am able to create the whole game ... but now i need to put different sections … |
| | I'm new to link lists and have to write a few modified functions from the book to do additional things. I have to modify insert to insert by the 2nd number passed in and have it replace that position and move the number that was there up. It's inserting the … |
 | Hi. I'm trying to overload +=, -= and *=. [code=C++] /*error C2297: '+=' : illegal, right operand has type 'Matrix *' error C2114: '+=' : pointer on left; needs integral value on right*/ Matrix* Matrix::operator +=(const Matrix *const m) { if(x == m->x && y == m->y) myArray::Add(ppMyArray, m->ppMyArray); return … |
| | Hi guys, I'm having some problem with my C++ assignment. Can't get this part down. [CODE=CPP] class Date { private: static const int daysInMonth[13]; int monthNo, year, day; string month; bool validDate, leapYear; public: void displayDaysInMonth(); void displayDate(); void enterDate(); void verifyDate(); void displayOptions(); void ahqError() {cout << "Error! Enter … |
| | can anybody tell me what does this eroors mean: error C2676: binary '*' : 'class LongInt' does not define this operator or a conversion to a type acceptable to the predefined operator C:\Documents and Settings\dsproject.cpp(872) : error C2109: subscript requires array or pointer type C:\Documents and Settings\\dsproject.cpp(874) : error C2109: … |
| | i have a code that you enter section after section. when your done, you type end, and it stops asking you to enter in stuff. My problem is, I can get it to detect when I type end. here is my problem: [code] cout << "\n\n\nTo start, enter each section … |
| | Anyone have any idea how I would write a program that lets user input a floating point number and then either round up if number is like 4.5 our round down(truncate) if number like 4.49. Any help would be greatly appreciated. |
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