49,761 Topics
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| | ok so i have this program here i had to finish, and it was for input and output files, i wrote everything, and even wrote the data.in and data.out files but when i run it i get nothing in return. do the files have to be in the ".in" format … |
| | The program takes a file with names and GPAs and sorts them in order of highest GPA to lowest using vectors. I cant seem to find out whats wrong with the code. Everytime i run it it says 'vector subscript out of range'. Can someone please help me? File: James …  |
| | I'm not sure where to start with this code. I would greatly appreciate if someone could write the code up for me. Here are the details. The program should prompt the user to enter the weight of an object on Earth, between 0 and 1000 pounds, and the name of … |
| | Hi! I need to use if statement to check if its the summer time (CEST) or Winter time (CET)...But I dunno how to do that..Couldn't find anything useful on the INTERNET.my date format is (d-mm-yyyy) Basically I need to do sth like that [code] if DateTimePicker->Value>(31-10-yyyy) {time="CET";} [/code] THX For … |
| | I have no specific question, though I could go on asking random questions for days. I am still rather early in the learning phase as far as c++ goes. I decided to post here for a rather different reason. I was Google searching for a problem related to getch() and …  |
| | [url]http://msdn.microsoft.com/en-us/library/aa505945.aspx[/url] im curious as to why microsoft has typedef'ed simple "data types"? what's the point of this and why should i use them in my programs?  |
| | Hi, I actually don't really know where I should post this question so please forgive me if it's in the wrong discussion section. Basically, I'm developing a CUDA program to calculate the FFT power spectrum of a series of images which are captured continuously and want to show the power … |
| | This is part of my linked list program. I need to change the data(node) with a new one when it is found (using the find function. And in other case I need to delete the found item using deleteNode() function, once the matching item is found. But, it is not … |
 | I've made a Matrix class that contains arrays, however I'd like to inherit the array class if possible. I've done some searching online and can't find any solid information on this. Does anyone know if I can even inherit this class? If so, do you have a good site with … |
| | hey all! can anyone help me findind any c/c++ code for reducing the pixels of an image to a required amount... please... thnx... |
 | Hi, I am trying to compile this program: [CODE] //hello.h #include <afxwin.h> class CMyApp: public CWinApp { public: virtual BOOL InitInstance(); }; class CMainWindow: public CFrameWnd { public: CMainWindow(); protected: afx_msg void OnPaint(); DECLARE_MESSAGE_MAP() }; //end of hello.h [/CODE] [CODE] //hello.cpp #include <afxwin.h> #include "hello.h" CMyApp myApp; BOOL CMyApp::InitInstance() { … |
| | Hi Guys: I have completed my source code for the following problem using the "if" statement. I have gotten 4 errors which are: Line|26|error: ambiguous overload for 'operator>>' in 'std::cin >> (Total_Number_of_Seconds / 3600)'| Line|29|error: ambiguous overload for 'operator>>' in 'std::cin >> (Total_Number_of_Seconds % 3600)'| Line|32|error: ambiguous overload for 'operator>>' … |
| | help i can not figure this out. my home is to encryption a four digit number I have to add 7 and use mod 10-- i think i have that part but now i need to swap the first number with the third and second with the fourth. i can … |
| | Hey guys, So I today I converted my programs from VS 2005 to VS 2010. I came across an issue involving the string null terminator ('\0') in a function of mine. (Note: It worked in VS 2005). [CODE]int StrLength(string str) { int i = 0; while(str[i] != '\0') { i++; … |
 | hey, I can seem to make this one work so I wrote another one. It runs but it doesn't work. I tested this but it keep saying invalid for everything anyway. You can check the flow chart again; i just changed ThisOne to ToBeChecked. valid invalid c cc ccc b …  |
| | i am taking my first C++ class and i can not clear the following error can anyone help error C2447: '{' : missing function header (old-style formal list?) //christine gershen // Exercise 4.17: Encryption.cpp // Encrypts data given by user. #include <iostream> // required to perform C++ stream I/O #include … |
| | wchar_t is a macro windows uses to replace it with either "CHAR" or "WCHAR" when UNICODE is defined. MSDN says that UNICODE is defined by default. My question is....what header file is this defined in? and how do i undefine it if i want the compiler to replace every occurance … |
| | I am getting the following errors and can't figure out how to fix it: [B]Start Error Message:[/B] 1>------ Build started: Project: Essential, Configuration: Debug Win32 ------ 1>Compiling... 1>Essential.cpp 1>c:\users\youlanda\desktop\lan\odu\spring 2011\it 310\program 1 store inventory\essential\essential.cpp(9) : error C2659: '=' : function as left operand 1>c:\users\youlanda\desktop\lan\odu\spring 2011\it 310\program 1 store inventory\essential\essential.cpp(10) : …  |
| | Hi every one! I have to genarate a 2d graphic based on x,y axis. I have two vectors with the same size, and I wanna to use then to make the x and y axis. Can anyone help me? Or show a trick, or page? Thanks |
| | Hello all, I know there is a "sort" method in the STL for list. However I am not sure how to use it, and my research was unable to help me out. What I am trying to do is sort my master list by the averages, lowest to highest. Can … |
| | Hi All, I was working on the project that was building very well on Visual Studio 2008 Express Edition. Later I have installed the Visual Studio 2008 professional along with Visual Studio 2008 SP1. Now I am trying to build the project, which shows the following Error. fatal error LNK1181: …  |
| | Hi people! For the API, CLSIDFromProgID(), can any one pls suggest what is the parameter exactly mean.. HRESULT CLSIDFromProgID( __in LPCOLESTR lpszProgID, __out LPCLSID lpclsid ); do we need to give the guid? |
| | Hi, I'm working on this program where I have to do some updating. In this case, I have to add a new item to the linked list, and it should be in a sorted fashion (ascending). I am trying to use my find() function, which returns the previous node (*ptrPrev). … |
| | Please, help me with my assignment. Please, anyone with a big kind heart : write a c++ program to give the 30 students final grade in a course with the ff. grading scheme: there are five quizzes worth 20 pts. each, a laboratory worth 100 pts., and exam worth 100 … |
| | Hi all. I am trying to read items from a text file whose name is input by the user and also output the receipt to a text file whose name is input by user. I got stock for about 3 hours. Could you guys help? Thank You. [CODE] #include <iostream> … |
| | Hi Everybody I am new to C++ and have a problem from the book my instructor gave that I am having some problems with. I am sure you guys are all familiar with the "mortgage calculator" here is my code. The Errors I am getting are as follows. I have … |
| | hi... I am new with c++. I need help to retrieve image from my usb webcam. I used codegear compiler. The idea is I need to capture image 10 times per second( or more) from my webcam. So, it will display at the screen some sort like video image (at … |
| | Here is the snippet of code I am having issues with. cout<<"So are you a male or female, Please type m/f"<<endl; cin>>sex; if (sex='M','m') { alcohol_distribution=.73; } else if (sex='F','f') { alcohol_distribution=.66; } So I know I have this terribly wrong, but i want the alcohol_distribution based on whether or … |
| | i do have 1 question [code]int function(...) { int x; int q; if (condition) { } <-----is there a way to put a marker here...then use a pointer to store the address of the marker...right before the 2nd conditional statement in my code? if (condition2) { } return val; } … |
| | so I've been trying to write this program that takes the data from a file and outputs the year the rainfall how much it is below/above the average, the average raifall and the std deviation and for some reason I get three C4552 warnings:'>': operator has no effect on three … |
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