I am using Codeblocks in Windows 10. Earlier I used to compile only 1 file, so I would just press the 'Build' and 'Run' button on codeblocks.
But, this time there are separate files I need to compile separately (to .o format) and then link to form a single executable file which I need to run. How can I do this in CODEBLOCKS? (In UNIX/LINUX systems, I know this is the 'make' command; but I don't know how to do it here?)
Can anyone help me? I tried reading some help pages on CodeBlocks on the internet, but they were so complicated, I gave up.
make isn't a compiler, and neither is CodeBlocks. make is just a command that runs other commands from a Makefile. The actual command that gets run is something along the lines of gcc a.cpp b.cpp, and it's the same command (or similar enough) that gets run when you build inside CodeBlocks. CodeBlocks should automatically build and link all of the source files that you add to your project. If you aren't seeing this happening, make sure you add them to the project inside of CodeBlocks and don't just put the files in the directory.
Related
I'm using Matlab to generate some C code and MinGW is the compiler. This is how the toolchain is configured:
Once the build process is finished I get an executable file that I can run, and it works fine (it's just a simple Windows console program).
However, I can't find the options to run it automatically right after compilation. I've seen some code where they added ($PRODUCT) to the "Execute" option, but it didn't work for me. Any help is much appreciated!
Following the advice from here:
https://www.reddit.com/r/vim/comments/r6dthv/make_with_makefile_and_run_exe_from_same_command/
I added && start C:\...\test.exe (where ... is the full path) to the "Make Tool" option (bottom line) and it worked.
I am new to C programming. I downloaded Code::Blocks to try. I had already installed the gcc compiler and so that's what codeblocks is set to use. I wrote a simple program and compile and ran it. It ran fine when I ran it from inside Code::Blocks but when I tried to double click the .exe it said
"The program can't start because libgcc_s_dw2-1.dll is missing from your
computer. Try reinstalling the program to fix this problem."
Why is it that it works when I run it in Code::Blocks but not when I click on the file?
BTW, here are my #includes.
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
I think author already solved his problem, but I just want to add my solution.
To use your executable file you need to follow these steps, to configure your project:
Project -> Build Options
Select correct target or project in left hand panel
Tab: Linker Settings
Box: Other linker settings
Enter follow linker options one per line:
-static
-static-libgcc
-static-libstdc++
Also,it could be helpful to add (..\mingw\bin) path to the project search directories.
Did you try and run you're program from the terminal? If not, do so, because then you won't have the problem that you compiler won't be found.
In your home directory in the terminal call to compile:
gcc yourprogram.c -o yourprogram.exe
./yourprogram.exe arg1 arg2
Second one is to run; arg1 and arg2 would be command line arguments you pass to the program. (This works on Mac and Linux, I have 0 experience on Windowsterminal)
Anyway, if you really want to learn how to program, then you should learn how to work with the terminal; then you'll never have to worry about GUI-Problems ever again, which is what you're now doing.
I had the same problem: running the exe inside CodeBlocks it was working, but running it inside cmd terminal gave the error.
I solved copying MinGW libs inside c://windows/SysWOW64(for 64bit windows).
I attach the zip with libs
https://3.sharebylink.com/1/?wjiteTTdXR8k or
https://files.fm/u/b6wqqwdy
Hope this helps!
I had the same problem and after about 4 hours of fighting with it, I finally got it figured out.
All you have to do is click project at the top of the screen, then build options, then checkmark Static libgcc, Static libstdc++, and static linking. click ok and then rebuild your project.
Hope that helps.
i am also worried about how to make u guys understand about my problem and share my experience. i am learning C.in previous, i used the Code-blocks IDE to compile and run C code.i learned that as a beginner it would better to use cmd to compile and run code than IDE. i am using windows 8. Before i was not use to with cmd, i also learned that to be a advance user and good programer i should know the use of cmd well.
After setting the environment variable started to compile c code by cmd by the following command
gcc -o "executable file name" "C source code file name"
it craete a .exe file. but no .o file. when i worked with IDE, also a .o file was found with .exe
what is the possible reason for it?
after compiling the code, i ran it by calling "executable file name".
and when checked the directory, then a .exe file was found.
but now the problem is, recently i am compiling and running code, i found that there is no .exe file created, but a file has created with unknown extension"POINTERWHILE File (.pointerWhile)"(copied from file properties). this unknown extension file is only runing by the cmd. it may be the one part of my source code file name. the code has given below and the name of source code.
Name of source code: Example184.1.pointerWhile
#include<stdio.h>
main()
{
char *p = "stop";
char str[80];
do
{
printf("Enter a String: ");
gets(str);
}
while(strcmp(p,str));
}
this program will take input until, "stop" entered.
this kind of things happened for several other files.then i copy them, to an another folder and compile and run but the same result.
i complied and run the same code form same folder and other folder by codeblocks, the result is same. the file is only running when it is in IDE.
then make an another file with other name in same directory and other, but the same code. then it is creating .exe file.
2.what may the cause for creating .exe file?
Great effort from you in learning the cmd along with C!
However, I think you're confusing the extension (name) of the file, and its contents. When you tell gcc to generate an executable file, you might want to give it a .exe extension, just like you said, assuming your source is called "myprog.c":
gcc -o myprog.exe myprog.c
This should always generate a myprog.exe file. But nothing prevents you from calling it like this:
gcc -o myprog.myFancyExtension myprog.c
You should still be able to run the program via the cmd (I didn't test that on windows though). Note that on other systems, like Linux, executable files usually have no extension at all.
Also, you're talking about how your IDE generates a myprog.o object file along with the myprog.exe executable file. To do this, your IDE is calling the compiler (gcc) twice: once to generate the .o file, and another time to generate the .exe file. There is no way to generate both files in one run of the compiler. The advantage of learning the cmd is that you will learn what your IDE is actually doing for you without telling you. The drawback is that you have to actually learn it ;)
Usually, people do not like to use gcc by hand, because as your projects grow, they will use different files and it becomes tedious to recompile them all manually. To overcome this, you will want to use a build tool, such as Make. I'm not familiar with development under Windows, so I can't recommend any specific tool. The point of those tools is that when your project has multiple source files, you only have to call the builder once, like this for Make:
make
instead of manually calling:
gcc -c myFeature1.c
gcc -c myOtherFeature.c
gcc -c myYetAnotherFeature.c
gcc -c myMain.c
gcc -o myMain.exe MyMain.o myFeature1.o myOtherFeature.o myYetAnotherFeature.o
Hope it helps
I am currently trying to compile and run C code on a Windows 8 machine and have installed MinGW so that I could do so. However, whenever I run the command to compile, I am told that the I: drive is missing and when I cancel the program tell me that libgmp-10.dll is missing. Here is the exact command I am using to try and compile:
"C:\MinGW\bin\gcc.exe" helloworld.c -o helloworld.exe
This leads to those two dialog boxes.
The first just says to insert the missing drive I. If I click Try Again, nothing happens and if I click the other two options, a second dialog box appears.
The second says that I am missing the libgmp-10.dll. I know for a fact that the dll exists in the same folder in which gcc.exe resides, and that the place where I am running these files from is off of the C drive drive. I have added "C:\MinGW\bin" to the path variable like this question's answer suggests, but no dice.
TL:DR - Can use gcc from MinGW to compile C code. Adding bin to path did not solve 'missing dll problem' and dll exists in same folder as gcc.exe
Try reinstalling MingGW. It worked to me when i was getting trouble in Windows 8.
Xcode Question, how to run one file at a time?
I keep getting this error: "Linker command failed with exit code 1" and I've noticed that it occurs when i use the "int main" method in multiple files. Furthermore, when I try to run a simple return 0 file, my "hello world" file still gives results to the console. So my assumption is that xcode is running all of the files in the project at the same time causing me to have a duplication error when I repeat method names (such as "int main"). How do I only run one file at a time? These are C files by the way, I'm using xcode as a tool to practice my c programming before next semester. Thanks for your help!
It sounds like you're trying to build multiple programs. The problem is you have a single "target" which is what Xcode uses to define what goes into an application.
You will need to create a separate target for each of your programs and assign target membership for your source files. Go to File->New->Target to create a new target. From the sounds of it, you are creating a command-line C program, so you will want to create a Command-Line Tool found under OS X-> Application.
Alternatively, you could also create separate projects for each program. See File->New->Program
As yet another alternative, assuming you are creating command-linen tools, if you wish you can use Xcode merely as an editor and build the program from the commandline (which you may have to do for your classes anyway). You can do this by creating your .c files and opening them in Xcode. Save the files to the same folder. To compile from the commandline, run something like the following in Terminal:
gcc -Wall file1.c file2.c -o myprogram
You would then run your program by giving:
./myprogram
If that doesn't work, make sure the command line tools are installed.
You can only have one int main per target.
You're getting linker errors because you're defining more than one.
If you need to run a function other than main at the start of execution, call it from main.
I ran into this issue myself following Learning C by Dan Gookin with exercise files. I learned that in order to be able to run the .c files, a project must be created then the files must be added specifying no target membership, otherwise Xcode will compile the entire files three as one executable and the errors encounter would prevent the program to run.