I've never worked with C++ or C. I'm trying to create a Visual studio project based on existing files which can be found here: example1.cpp together with the resources. As you can see this is example code of a book for OpenGl. I have opengl and glut present on my computer and they work ( tested it).
Based on the files mentioned above a created an empty C++ project in visual studio 2012 (i also have other versions installed if you can provide a solution in 2010 or so). I included the header files & the source file. Though I still get the following in my IDE:
with errors such as:
cannot open source file "Angle.h"
( Though the file is present in the project)
Can anyone tell me how I get these files to compile and run ?
Make sure that the file angel.h it's in the same path that the .cpp file.
Header files need to be in same directory with source files in order to use #include with quotes.
#include "header.h"
In other words Angel.h must be in same directory with example1.cpp.
However,you can add spesicific paths to your project from Project Settings>VC++ Directories and include header files which exists in those paths using
#include <header.h>
Related
I decided on adding a tiny extra project to my visual studio solution which includes only a single header file(for now) with a mutex which allows only 1 thread to output to the console at a time. Since this is a functionality which all of my projects in my solution will need so I thought it will be best to add a separate project for it and add references to it on the other projects.
So I created an empty project named Commons, then added an header file logger_mutex.h and wrote the following code inside it.
#pragma once
#ifdef _DEBUG
#include <mutex>
std::mutex loggerMutex;
#endif
I changed the project type in properties from Application(.exe) to Static Library (.lib). Then I added the include path to this file in the other project properties. Also I added this Commons project as a reference to all my other projects. But now when I try to build the solution it gave the error LINK1104 cannot open file ../path/to/my/output/directory/Commons.lib
I investigated on the output directory and there was no file in there named Commons.lib. I tried rebuilding the Commons project separately, and even though visual studio said it built successfully I did not see the Commons.lib file appear on the output directory.
I tried it even without the other projects, in a completely different solution. It still did not generate any .lib file in the output directory. I think this should be verifiable as well.
So what am I missing here, is there some kind of minimum requirement needed to have to get a .lib output file generated? Is my code too small to generate a .lib output? I am using Visual Studio 2022.
Add one empty .cpp file in your lib project and a lib will be generated.
But as far as I am concerned, it will be better to #include the logger_mutex.h to other project's pch.h instead of as a library.
Good day. I got some C++ project from GitHub. Originaly it buils using automake (there're makefile.am and configure.ac files). I'm trying to make C++ in VS2017 based on it. Source project has over 600 source files, and problem is what there's no any "include" directive in source files, and I have over 5000 compile errors. Is there any way to declare some kind of "global include for all source files" in project without modifying original souce files or create any "special" file with all required includes, which will be included automaticaly in source files on compiling?
I'm using a library for image processing called Cimg. The library is stored in a single .h file (cimg.h).
I need to create several Visual Studio solutions(one solution for each exercise).
Where can I put this file globally so that I don't have to copy it to the Visual Studio solution each time?
You can put your header file anywhere you want, then add that folder as additional include directory for your visual studio project: Right click your project in the solution explorer, then:
Configuration properties->C/C++->General->Additional Include Directories
Just add the path there, and you can simply include CImg.h by:
#include <CImg.h>
I have found a library to generate barcodes (libbarpp). I would like to use this library in my Qt project.
Doing a svn checkout of the source: http://libbarpp.googlecode.com/svn/trunk/ reveals a nice VS example in the src folder. I opened the project in VS and found the included header files. I have included these header files in my Qt project, however i encountered a problem when several of the files required a system header file
#include <xstring>
In VS i can see the this file is located in (on my system):
c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\include\xstring
However the files does not have any extension and i don't really know what to do with it.
Do i need to include something in my Qt project file in order to use this VS file?
I tried including
CONFIG += stl
to my Qt project file, but with no luck.
Any help or comments is greatly appreciated.
EDIT: I'm using Qt 5.2.1 with MinGW compiler
xstring is a Microsoft specific header that contains implementation of std::basic_string and some related specializations.
It shouldn't be included directly in the first place and unless the code you are talking about is using something implementation specific from that file you should be fine replacing it with just:
#include <string>
I mostly worked with linux env, new to visual studio. (If you are in Linux, you would use the make utility...) How do you compile and run a project in Visual Studio when you have multiple source and header files involved in the same project? I have main.cpp, and few other source and corresponding header files, and when i built the project, I couldn't see an output although the project compiled fine and 'exited gracefully'. How do I tell Visual Studio that these files are part of the project?
To do that:
Select Project -->
Add Existing Item....
You should be looking in the same directory where you saved the project/solution.
Highlight the .h and .cpp files: date.cpp, date.h and main.cpp
Select "Add" to add the files to the project.
Result: Once I added the 'main.cpp' and other files in the project, it works fine and I am able to view the output.
References:
1 [http://www.cs.uregina.ca/Links/class-info/210/Lab1_VCIntro/]