As you can see above I have 1 file in my program
second file is added.
When i try to execute one of my file i encounter with this problem
Can you please help me with this error.
Thank you.
I mentioned problem above
You have two main functions in your project, one in each file. A C program can have only one main function.
Remove one of the main functions or rename one of them to get the project to build.
If you're writing lots of short C programs, you shouldn't use Xcode. With Xcode you have to create a new project for each program. Use a text editor like Visual Studio Code, TextMate, or Sublime Text instead. Text editors like these have bundles you can install that let you build and run C programs from within the editor.
Related
I'm trying to set up a simple project that will contain c source code. I can't find anything via google for newer versions of Xcode.
Best I could figure out is to create a new command line project and then manually add in a C program file. Is this the only method?
After selecting Command line app, hit next. Then be sure to select language type to "C" and then continue.
I've downloaded VS2017 Community Edition and I'm working through "Programming in C" by Stephen G. Kochan.
I'd like to store all the examples in one project (possibly 1 project per chapter), however I've come across the error about multiple "main" files in one project. Before telling me I can't have multiple main's in a project, could you suggest the best way to organise these small C programs in VS2017.
I love the fact that I don't have to use a terminal compiler and would like to use VS2017 to work my way through the book.
Any suggestions?
A typical case of "assignments" in a course. In that case you can create one module (c file) for each assignment and call the current assignment from your main. Now you have all assignments in a single project, so you can easily look them up. Assignments completed you can comment-out.
I don't think you really want them all in one project. I think you want them all in one Solution, with each example in its own Project. That way you can switch between projects in the IDE and build/run/debug whichever one you are working on at the time.
Add a new project to your solution by right-clicking the solution in Solution Explorer and selecting Add->New Project from the menu.
Set the active project by right-clicking the project in Solution Explorer and choose "Set as startup project" from the menu.
This allows you to build each example on its own, or build all of them at once. Each project is self-contained and generates its own executable, and you can navigate around from one project to another inside the IDE.
You can compile and run your C files individually from command line.
This is not ideal when using an IDE.
Your other option is to use add_executable command in cmake
Adds an executable target called to be built from the source
files listed in the command invocation. The corresponds to the
logical target name and must be globally unique within a project. The
actual file name of the executable built is constructed based on
conventions of the native platform (such as .exe or just
).
I have a problem with C. When I want to compile my sources codes, I see the message:
=== Build file: "no target" in "no project" (compiler: unknown) ===
The classic Hello world works, but I have this message.
I want to make a program that read all absolute directories and subdirectories recursively, print all names with 252 characters or more in a file. I use codeblocks and GNU gcc.
I have just had this problem with Codeblocks. Although I had a compiler.
The problem was that I have not saved the file with the correct extension - e.g. it was Untitled4 instead of Untitled4.c or Untitled4.cpp (for c++). Simply renaming the file has worked.
I just had this problem too but I managed to get it going. I had to go to New --> Project --> Console Application.
My guess is that an update has changed functionality or something. I distinctly remember that I could just simply add a new Empty File and then be able to debug and it run from there. Apparently not anymore. I now specifically have to go to the add new projects option and then choose the console application.
Don't forget to choose the C compiler and not C++ compiler when it walks you through the process.
I have encountered the same problem. So i found that i do have created a project file, but my files(.cpp, .h and other) files were not included in my project, to check that open your codeblock ide-> open your project-> and on the left hand side you will see a Management tab, which should contain all your file( if you are not able to see Management tab, just follow step: go to view panel )
While the process is active, you can´t run the program.
Open the Task Manager and kill the process created by CodeBlocks (the same name of your project).
Just create a new project and Copy and paste your texts into the new files. It will work.
I'm working off of a fresh install of VS 11 Beta, on a Windows 7 64-bit machine. When I try to debug, it gives me this error message.
"Unable to start program 'C:\Users\myname\documents\Visual Studio 11\Projects\Project1\Debug\Project1.exe"
I'm almost entirely sure it isn't a problem with my code--it works fine on online compilers, making me think that it's an issue with how I'm saving it. Just in case, here it is.
#include <stdio.h>
#include <stdlib.h>
int main(void)
{
printf("Hello, world!\n");
return 0;
}
My process for creating the project/file is to create a new empty Visual C++ project, then a .cpp file, write my code, save it as a .c inside of the first folder I'm prompted with, within the projects folder, and then try to debug.
What am I doing wrong, here? I know that the debug folder is empty, but I can't figure out how to create the .exe file that should reside in it.
NB: I'm rather new to programming. If answers could be phrased in babyspeak, that would be appreciated.
Well, there could be a number of things wrong. However, based on your description of making a ccp file and a c file, I'm betting that it's a problem in your VS 11 project rather than the code itself. My guess would be that either the c file didn't get included in your project (check the Solution Explorer) or that you have the main (or _tmain) function defined in both the cpp and the c files, which will make the linker issue an error.
There are a bunch of "Hello World" tutorials online for VS 2010 and earlier, but there don't seem to be many for VS 11 Beta yet. You may want to take a look at the 2010 versions. I found this video tutorial that you may want to check out.
Check the output directory. And you can also set manually an output direcotry to save the built exe file.
I know this problem was from May but I thought I would answer with a solution that worked for me:
I was creating a .cpp file in a blank project and was getting a similar error. I noticed that the file had a name but was not showing the extension .cpp. I added the extension to the file (ex3.18.cpp) and did not get the .exe error again.
I don't know if that makes sense with your issue but I worked on this for two days uninstalling and reinstalling VS 11, and this was what finally worked.
My doubt is related to the storage of Error/Warning Messages.
For example I wrote a C program in Eclipse IDE and compiled. The Error/Warning Messages are displayed in the problem tab.
If this is the situation which file in my computer contains the Error/Warning Messages. I need to know the location of this file because I am doing a project related to IDE creation.
Any suggestions or Ideas?
First of all you should know that what you see in Problems view in eclipse has not been saved as a log file in plain text. But if you want to see it:
1- Under each workspace there is a folder named ".metadata" . In linux it is a hide folder and you have to choose show hide files. I am not sure about windows.
2- open this path ".plugins/org.eclipse.core.resources/.projects/" under ".metadata".
3- choose the sub folder with the project name. (The project you want to see prolems for it).
4- there is two files holding the problems named ".markers" and ".markers.snap"
As said this is under Linux. Under windows may be it differs. But it should be something like this.
Not every text editor opens these files. I used emacs!