C++ :: Compile Multiple Programs Stored Under A Single Project
Feb 21, 2015
I have started using code::blocks for practicing ,(was using bloodshed dev C++ til now). The thing is that m not able to compile multiple programs stored under a single project , as i have created project by the name of a topic and have decided to solve all problems related to that topic under that project.
When there was only one .cpp file in the project it compiled successfully ,but as soon as i created a second file and compiled it it says "main can be declared only once"
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Aug 27, 2013
I just installed eclipse cdt for linux but i dont know how to compile programs on this IDE
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Aug 14, 2013
I've got a VERY experimental function which takes data stored to a file and assigns it to a multidimensional array on the heap. It's designed for infinite dimensions by recalling itself with updated information but I don't think this is very safe.
The template function creates a heap array using a TYPE**, and recalls itself to create the new dimensions. I want to replace this with the much safer method of assigning just a single heap memory array and then only assign using the recalling method (unless I can find anything else).
To do this though I need to know how single dimensional arrays are stored on the heap, as well as multi-dimensional (for n dimensions). Where I can find this information?
btw I only need this for the Windows operating system, 32bit, I'm not exactly sure what 'C++ style' this is but I'm using Microsoft's Visual Studio Express 2012 as my IDE, so whatever that uses.
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Jul 4, 2013
When I try to compile a single file with GCC (I'm using Code::Blocks as my IDE if that is relevant) it gives me a bunch of undefined reference errors. Well, of course they are undefined since I haven't linked anything yet, but why is GCC complaining at compiling time?
The problem is that when I try to link and compile the project in one go I don't get any errors. The references in question are from the GLEW library if that is relevant.
srccharrenderer.o:charrenderer.cpp|| undefined reference to `_imp____glewDeleteBuffers'|
srccharrenderer.o:charrenderer.cpp|| undefined reference to `_imp____glewDeleteBuffers'|
srccharrenderer.o:charrenderer.cpp|| undefined reference to `glEnableClientState@4'|
srccharrenderer.o:charrenderer.cpp|| undefined reference to `_imp____glewBindBuffer'|
srccharrenderer.o:charrenderer.cpp|| undefined reference to `glVertexPointer@16'|
[Code] ....
Here are all the errors I get.
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May 11, 2014
Code:
#ifndef Widget_H
#define Widget_H
#include <QtOgrePrereqs.h>
// Boost + Qt5 workaround to avoid Macro argument mismatch error.
#include <OgreCamera.h>
#include <OgreEntity.h>
#include <OgreLogManager.h>
[Code]...
Why the compilation fails. I am informed that the copy constructor of QWidget is disabled.
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Oct 2, 2014
I'm a beginner with C and wonder how to include single header files (*.h) in to my project. I mean header files which are not included to the standard installation package.
I thought it would work if I just copy the newheader.h file in to library folder c:MinGWinclude, but it didn't work. Is there some kinf of GCC -command or procedure to add these single header files or how it should work?
All of those standard header files are working well and I don't have any problems with them.
Environment I'm using is MinGW+GCC+Win7.
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Nov 19, 2012
Is there a C++ version of the FatFS library? I am trying to incorporate fatfs into a cpp project and I havent been able to compile the project even though I added the
#ifdef __cplusplus
extern "C" {
#endif
in the header file. I may have missed something. How to be able to do this?
Here is the section where I added the extern
#ifdef __cplusplus
extern "C" {
#endif
[Code] ....
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Jan 8, 2015
I'm using visual studio 2010
I run visual studio and choose File->New->Project->Visual C++->MFC->MFC Application
and Follow the wizard, select a dialog based app, then use all default options.
and trying choose Build -> Rebuild Solution.
than I've got error message like below.
>------ Rebuild All started: Project: Orcasetest4, Configuration: Debug Win32 ------
1>Deleting intermediate and output files for project 'Orcasetest4', configuration 'Debug|Win32'
1>Compiling...
1>stdafx.cpp
[Code] ......
What did i wrong? is Visual studio 9.0 Visual studio 2008?
I tried compile in mode x64 than it works. but in Win32 it goes errors.
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Feb 4, 2014
I am trying to build a VC++ project in Visual Studio 2010. [URL] ....
This project has a dependency on openssl libraries. How can I successfully build this project? How to add third party libs/dlls in a project.
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Oct 23, 2012
So lately I've been writing multiple header and cpp files and I would always the same error when I finally #include headers in my main.cpp. This error
Code:
undefined reference to `...`
On Youtube videos I see people doing this and their work magically compiles correctly. I found out that when I #include the headers' cpp files instead, my programs would compile. I use Code::Blocks with GNU GCC compiler.
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Mar 15, 2015
I've been given an assignment called a Single Facility Layout Problem in which a number of machines (for the purpose of the assignment they're called machines) with an x-coordinate, y-coordinate and weighting are given/inputted. I'm using 5 machines for ease of use and reading errors.
The object of the program is to calculate the value of each set of coordinates using the Me formula, the lower the value, the better. Thus the program should output a 5 different values.
Problem: My problem is that instead of getting, say 5 unique values, I'm getting 5 of the same value much like the photo attached.
- How can I remedy this?
- Is there a limit to the amount of FOR loops that can be nested? If not why isn't my code working correctly?
- Where should I place the printf statement in order that I will output 5 unique values?
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main() {
//'h' is number of machines, objects etc.
int h=5;
[Code] .....
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Oct 4, 2013
Is it possible to apply Print Conversion Specifiers to a single value multiple .
simply put ,
printf("%.1s%6lf
", perimeter_Circle);
I want one digit precision and 7 tab space on this item.
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Feb 21, 2012
I've tried to form together the following code so that I can process multiple files from one user specified directory. However, when I run the program it works great for the first file, but all other files are blank. The problem starts on the following line:
while(FileIn.good())
//---------------------------------------------------
#include <fstream>
#include <iostream>
#include <dirent.h>
#include <sys/stat.h>
using namespace std;
struct dirent *dirp;
[code]....
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Mar 7, 2013
How I can compile multiple source file in visual studio 2012 ???
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Jul 28, 2014
My question is on c++ strings. At the moment my program is reading input in one line at a time after the user presses enter.
I want to read multiple values in on a single line. Example: "apple banana orange end" ... How would I do this?
MAIN Code:
#include "Header.h"
#include "Orange.h"
#include <iostream>
#include <string>
#include <cctype>
using namespace std;
[Code] ......
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Apr 23, 2012
I've a html table in my web form which contains 30 rows of textboxes. I want to display all the textbox values by using a search command...
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Apr 18, 2014
Is it possible to store multiple project files in one projects solution explorer?
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Jul 11, 2014
I am making a multiple quiz program. So everything is working fine, except for the part where i'm trying to add a highscore for each user which is being stored in a binary file. I have added a sample of the program containing the error. This isn't the actual program, which is very long.
class user { //The collection of all info pertaining to the users
char user_id[50];
public:
int hscore1;
user() {
strcpy(user_id,"NULL");
hscore=0;
[Code] ....
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Jan 22, 2014
I have a project which does a specific thing, like an open file dialog.
I would like to open it in a different project on a click of a button.
Also, It has a different namespace.
I'm guessing that it would involve a "using" statement to add the namespace And I will have to add reference to an *.exe or *.dll -> I'll have to look up how to make a *.dll, I know where the *.exe file is.
I have searched for a different things on Google, but I don't think that I am looking for the correct phrase (which is always frustrating...)
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Mar 23, 2013
I've copied and pasted my code. The main program, the calculateTaxes.cpp function code and my makefile. I am using the makefile to link these two codes together but I get an error when I type 'make' in the command line.
I receive the error code:
assign2c.cpp.text+0x169): undefined reference to 'calculateTaxes(float, float, float*, float*, float*)'
collect: ld returned 1 exit status
make: *** [main.exe] error 1
[Code]......
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Oct 10, 2013
so here is a basic program i wrote i am thinking of writing a currency conversion program that does multiple conversions and i was thinking it is possible to do something like this couldnt i call them after i write them as functions
usdtoeuro()
usdtokuna()
how would i go about doing that? or can you point me to anything?
Code:
#include <stdio.h>
int main()
{
[Code].....
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Jan 19, 2015
I have a mobile application for android coded in javascript and a windows form coded in c#. I want my mobile app to send some data to the c# program. It is fine if the transmission is not secure. I searched the net. I found a site called pastebin.com. Unfortunately it provides api for posting and reading data. However I want something, where I can store,read as well as EDIT the data.
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Oct 18, 2014
I am trying to experiment with programs and databases. Right now I am trying to set up a database so that my program, which currently just appends its results onto a text file, will instead store each result into a database, because this will make things much easier to access than trying to read specific results from an ever-larger, disorganized text file.
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Feb 3, 2014
I am just starting out learning C and I am using MinGW, Widnows 7, and cmd.exe.I am starting from scratch and learning very short and simple programs, like 20 lines long.After I use MinGW (gcc) to compile, the programs start up rather slowly, sometimes up to about 3-5 seconds. One with a big nested loop even took about 15 seconds to load. After they run once, the next time they run, it's instant.
Last time I learned from this book, I don't remember them starting so slowly. I use the command "gcc sample.c -o sample".It just concerns me that these tiny little programs are starting up so slowly. I'm scared it's a problem with my computer or MinGW installation. When I start making more advanced programs, I don't want them running slower than they ought to be.
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Apr 12, 2013
I find type casting to be very hard to grasp, I am not sure why. I understand how it works I suppose, but I find it hard to grasp why it would be needed in programming. So my question is, how often is type casting used in general programs? Is there an easier way I could be trying to teach myself about it? I am just using the tutorials provided by this site.
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Apr 30, 2014
This is a problem I have been having with every program I write since I started using SDL 2. Whenever I compile my code and run my program, everything works perfectly fine until at some point (usually after 3-8 minutes of running), the program will stop responding completely and I will have to exit out of the console to close it. The code I believe is relevant is:
void MainLoop()
{
InitLoop();
while ( !QuitMain )
[Code].....
If I change SDL_PollEvent(&Event) to SDL_WaitEventTimeout(&Event,100), then the problem goes away (I did that and had the program running for about an hour without it stop responding before I decided that it solved the problem), so I believe that the problem has something to do with event handling. Also, it might be noteworthy to mention that when I use SDL_WaitEventTimeout with the second parameter being a small number (because 100 milliseconds is a long time to wait and makes the program run at like 8 FPS), the problem returns.
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