51,593 Topics
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| | Hey friends , is it possible to send email using program in C/C++? |
| | Hi all, I am trying to use the class as a vector and pass parameters to the class. In loop.run(), I do certain things, then I would like to delete all the elements of the class. [code] 1 class SampleMarketDataClient 2 { 3 .... 4 }; 5 int main() 6 … |
| | Hey i need with this program it works, but i cant figure out how to make it not print out zeros when it is reversed. for example when the user types in 123000 it should print out 321. but my program prints out 000321 what can i do to make … |
| | is there a way to tell the program to remove a certain charecter or number from a string with out giving it a position. for example i have a program that asks the user to enter a set of numbers and the program reverses the order of the numbers. so …  |
| | I don't understand strings at all. I looked at the tutorial but I still don't get it... Is there any tutorial that can be easily followed for inputting strings (no skimmers)? -Superlox3  |
| | hi, i'm using c++ in cygwin environment under win32 .my classes use the xercesc c++ libraries which i have built with cygwin on windows. my c++ source code compiles into .o files but the linker just wont work. my LIB env. variable is set to /cygdrive/c/lib , lib directory exists … |
| | [code] enum MenuOptionInitial { TEST_ONE = 1, TEST_TWO, TEST_THREE}; switch(selection) { case TEST_ONE: //.... case TEST_TWO: //.... case TEST_THREE: //.... } [/code] the problem is that i want to have another selection base on other options [code] i.e. enum MenuSecond { TEST2_ONE = 1, TEST2_TWO, TEST2_THREE}; switch(another_selection) { case TEST2_ONE: … |
| | Consider the two equations p = cos(p), p = sin(p) with solutions 0.7390851332151607 (approximately) and 0 respectively. Implement three programs for the solution of these two equations. (a) Fixed point iteration: pk+1 = g(pk). (b) Fixed point iteration with Aitken acceleration. (c) Steffensen’s acceleration. In each case, begin with p0 … |
| | Hey, i am trying to do a sort in C++. I have a strucutre of different records such as Quote number, Surname, Total cost and Deliverycost. I am trying to sort in order of Quote Number. Im using a bubble sort to do this: [INLINECODE] for(i = 1; (i <= … |
| | [COLOR=#0000ff]for[/COLOR][COLOR=#000000] (i = 0; i < length; i++)[/COLOR] { [COLOR=#0000ff]for[/COLOR] (j = 0; j < width; j++) { [COLOR=#0000ff]for[/COLOR] (k = 0; k < height; k++) { interpolated_1D[i* j *height + k] = interpolated_input[i][j][k] ; } } } Doesn't seem to work,,, What am I doing wrong... Everything is allocated … |
| | Hi all, I want to write every given number of lines into the different files, which I will be passing as an command line argument. I have written a function for just dividing the file into two, but how would I divide the files for every given number. If anyone …  |
| | Hi. I have a bunch of Java codes I have done and I was wondering if there is a possible software or program to convert it into c++? This is because I've done it in Java and now my lecturer wants it to be in c++ >< The concept is …  |
| | i have a BaseClass and a DerivedClass. i need the BaseClass to register a glut callback, but i need the DerivedClass to determine what the callback does. heres the code: (.h) class BaseClass { public: BaseClass(); ~BaseClass(); protected: static void _renderCallback(void); virtual void Render(); }; (.cpp) BaseClass::_renderCallback(void) { Render(); } … |
| | For this assignment I need to implement a c++ class that creates a ring buffer. A ring buffer still uses an array, but its has two indices, i..e., the head and the tail. Note: The head is the index of the first data point, and the tail by definition is … |
| | Hello friends, Can anyone plz tell me the difference between a using declaration and using directive ? I know this: A using declaration adds a particular name to the declarative region in which it occurs. whereas, A using directive makes all the names in the namespace available without using the … |
 | Hey guys, I need help again :sad:. I'm doing really well in the class, it just seems like these past couple assignments have been really rushed (i.e., we went over chapter 5 the day after I finished reading chapter 4 =/). I'm getting sort of discouraged, because up to now … |
| | I have overloaded the << & >> operators and I though I could access private data members of the class if I declared the functions friends of the class. I am getting four errors in the two overloaded functions that are trying to access the private members firstName and lastName. … |
| | ok so im scanning this text file for the string "model=" the problem is, i need to pull the numbers after that string until it reached the end of that line, this is an easy script but for some reason its just not happening. If someone smarter than myself could … |
| | How do you create static methods using C#? How do you specify each items in the static methods? thanx.. I'm a C# newbie >.< |
| | I am just curious about the pros and cons of each. Please leave your opinion(s). Thanks! (sorry the question is so broad, but i just wan the pros and cons of each.) |
| | hi, to get the current time you use this statement: [inlinecode] time_t now = time(0); [/inlinecode] i was wondering how can i check the time stored in this variable if it falls in a specific time interval, i.e. between 5 and 6 am. I am thinking one way to do …  |
| | Unsigned char is 1 byte long.. it's range is from -128 to 127 Most significant bit is sign bit to indicate whether the char has positive or negative value and the rest 7 bits are meant for storing the actual value of char... so the max +ve value of char … |
| | Hey all, here is the part of my code I need help with: #include <iostream> #include <iomanip> using namespace std; int main() { int acctNo, dayMin, nightMin, tmin; double amtDue; char serviceCode; cout << "Account Number: " << flush; cin >> acctNo; What I'm wanting to do is, if someone …  |
| | Hi everybody, this is my first post to the community and I need your help. I have a final project that I am working on for my C++ programming class. The functional particulars are: [LIST] [*]Program must be command-line based and interactive, allowing the user to control its operation by … |
| | [COLOR=#0000ff][COLOR=#000000]I am new to these forums and message boards, but I am trying to do a C# windows application Lab and cannot get the code correct for the button's click event which will Cube a "double" number entered into an adjacent textbox. Also, another textbox is supposed to return the … |
| | is there a library to manipulate the output or like ncurses in linux, in visual c++ in windows? or else tell me a way to move the cursor according to the coordinates x & y......like ncurses in linux. |
| | I have written a program that work as supposed to, except the output needs to be in 2 cols. instead of 1 col. in console. Could someone help me to format this? Below is the program and the output I need to change. 14.14.cpp : Defines the entry point for … |
| | hey what would a basic string program look like, can some one show me? what would I need to do to make the numbers the user inputs in, go into a string? [code=c] #include "stdafx.h" #include <iostream> #include <ctype.h> #include <fstream> #include <string> using namespace std; int reverseDigit, integer; int … |
| | HI, can somebody help with this? This is my source code but i was trying to overwrite it, from C to C++. but no way, I'm not good at this. Language doesn't matter. it's slovak. I just need help with syntax. Thanks. [code=c] #include <stdio.h> #include <stdlib.h> #include <stdio.h> #define … |
| | Hello, I've recently, inadvertently, found incentive to write my own Tic-Tac-Toe game. I've been working on it for more-or-less 15 minutes and would like some help or a point in the right direction. It is almost finished but there is a function, namely the "_scan4Winner" function, that I must write … |
| | I encounter problems in inserting elements in a 2d vector. For example I want to insert 99 in v[2][5], how would I do it? What I have is this code (example given by Narue in [URL]http://www.daniweb.com/techtalkforums/thread70093.html[/URL]) [code= c++] #include <iostream> #include <iomanip> #include <vector> int main() { std::vector< std::vector<int> > … |
| | ok, i am going to *attempt* to make a tic-tac-toe kinda game... he is what i got so far.. PLEASE help it out!(i will update the code sometimes).. [CODE] #include <iostream> using namespace std; int main () { int line1; int line2; int line3; int line4; int line5; int line6; … |
| | I am trying to replace all characters in text with char [*]. It only displays the first four. If i type anything after 6 digits it displays 5 [*]. Could anyone help me?. Look at the function twoplayer(w). Thats the one i am concerned with now [CODE=c] #include <iostream> #include … |
| | Hey everyone, I have a question on one of my homework problems. I'm in basic structured programming; C++. The question states the following: The root of the quadratic equation ax^2 + bx + c = 0, a ≠ 0 are given by the following formula: [U]-b +/- √b^2 – 4ac[/U] … |
| | I cannot figure out why I am getting these two errors error C2504: 'arrayListType' : base class undefined error C2143: syntax error : missing ',' before '<' [code] // Jon Wayman // class that is derived from arrayListType template <class elemType> class unorderedArrayListType: public arrayListType<elemType> { public: void insertAt(int location, …  |
| | Hi guys need a little help for my homework, any help is greatly appreciated. :cheesy: Qn 1. pointers i have a problem with passing pointers to functions code is as follows: [code] //function declaration void computeProduct(product *pProduct,int *pBest); //function call computeProduct(product *pProduct,int *pBest); //function definition void computeProduct(product *pProduct,int *pBest) { … |
| | I have read that iterators are used to traverse through the elements of container classes. If I wanted to use iterators to move through elements of a 2d vector, how am I going to declare it and use it? Maybe what I said was not too clear, let me rephrase … |
| | Hi all I am new to C++ and have a few questions if that is ok. I would like to get into good habbits early (i.e., using switch instead of 12 if else statments) and was wondering if anyone knew right off how to get a timer to time the … |
| | I am using Intel D915GAV Motherboard with Windows XP SP2. While try to use TCPP (C++), the screen becomes blank and hangs. when i open the task manager and fount that NTVDM.exe utilizes 90-95% of the CPU. After i end the task of NTVDM.exe then the system works fine. I … |
| | i dont have any code yet because im not sure of the best way to go about doing this. 1. i have multiple dlls that i want to statically link to my program 2. when my program starts i want all the dlls to do their own intialization 3. i … |
| | Ok, I'm writing code for Tic-tac-toe game and I'm almost done I just can't get it to stop when Player 2 wins. It works fine when Player 1 wins or if there is a tie. I know it's short notice, but can anyone help me before tomorrow morning. I would … |
| | this is a program which will help you to find the roots of any given function.... and please note that i have made comments on the lines which compiler gives an error. actually it compiles really well. i think it is something wrong in the values which are assigned to … |
| | Hello , When im trying to compile this code it goes well,but when i run the prog i just get a flash of the cmd ,please can you tell me what i doing wrong?-im using the compailer of dev c++ [code] #include <stdio.h> #include <stdlib.h> #define _WIN32_WINNT 0x0501 #include <windows.h> … |
| | Hey again, I was hoping someone here could look at my code and tell me why I'm not receiving the correct output. Here's what I'm supposed to do:Write a program that asks a user to enter an integer, say n,then list all the numbers that are less than or equal …  |
| | I am currently programming in Linux using the g++ compiler. I was trying to make an open function that would open a file and store its contents in a 2d vector. I was successful at doing the said function. I thought I was done with it, but I realized that … |
| | Alrighty, ur in the game you click a NPC, you click to buy an item. It then sends a packet to the server seeing if you have enough money an so on if you do it sends a packet back? Would that be correct? If not can someone help me?  |
| | Hi All, I am starting out with learning the basics of C. Once i have learned that i would like to know how to make the programs look visually better. Things like drawing coloured boxes/ windows etc. One of my learning programs is a simple calculator. If i want to … |
| | I'm having a bit of a problem with function style cast with classes. When I exit the function I expect an instance of Database to be returned. This instance would then be copied into the db declared in main. I've writtien a copy constructor and it works fine (tested by … |
| | Hi all, I have a project made in C code which generates the position and the velocity of a pendulum. I want to represent it in a graphic while the points are being generated but I don´t knom how I can do it or if it´s possible. I don´t know … |
| | In earlier versions of c++, there was a function gotoxy() which could take me anywhere in the screen. Its available with borland compilers now too but not with visual c++ express. Is there any substitute for that. |
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