Codeblock Download For Mac

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This tutorial explains how to install Codeblocks on your local environment or PC with Windows, Mac, or on Linux.

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This tutorial explains how to install Codeblocks on your local environment or PC with Windows, Mac, or on Linux.

CodeBlocks is a cross-platform, open-source, free IDE that supports GCC, Visual C++, and Clang compilers. Codeblocks was developed in C++ using wxWidgets for Windows and Linux as the GUI toolkit. It is oriented towards C, C++, and Fortran with custom build system support.

Install CodeBlocks IDE on Windows

Visit codeblocks.org. Click Download from the menu, then click on download the binary release.
Go to your operating platform section (e.g., Windows XP / Vista / 7 / 8.x / 10), then download the installer with GCC Compiler, e.g., codeblocks-17.12mingw-setup.exe or Click here to download.
Double-click to run the downloaded installer and click Next on the pop-up window. Now click on “I Agree” to accept the license agreement.

On the new pop-up, don’t do anything, just click Next and then change the installation directory if you want (default directory recommended). Click Install.

Wait for a minute for installation to complete. A new pop-up asks you to run Codeblocks. Click YES, and then it shows the compiler Codeblocks detected. Click OK.

Now we have installed Codeblocks on windows.

We need to verify the Compiler and Debugger path (this step is optional).

Go to menu options and click on Settings >> Compiler. In the selected compiler, by default, it shows GNU GCC Compiler. Now select the “Toolchain Executables” tab from the below tabs and check the Compiler’s Installation Directory is set to “C:Program FilescodeblocksMinGW.
Similarly, for debugger path: Settings >> Debugger >> GDB/CDB debugger >> Default. In Executable, the path should be C:Program FilescodeblocksMinGWbingdb.exe or C:MinGWbingdb.exe if you have installed MinGW compiler before installing Codeblocks.

Note: If you encountered problems running the debugger with CodeBlocks, do a clean installation. Uninstall Codeblocks and then first install MinGW and then install Codeblocks.

Thanks for reading!

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CodeBlocks is an open-source, cross-platform (Windows, Linux, MacOS), and free C/C++ IDE. It supports many compilers, such as GNU GCC (MinGW and Cygwin) and MS Visual C++. It supports interactive debugging (via GNU GDB or MS CDB). CodeBlocks is surprisingly versatile, and in my opinion, much better than the Visual Studio suite. The mother site of CodeBlocks is www.codeblocks.org.

How to Install CodeBlocks 13.12

Step 1: Download

Code Blocks 17.12 Download For Mac

Goto http://www.codeblocks.org/downloads. Click 'Download the binary release'. Select your operating platform (e.g., Windows 2000/XP/Vista/7). Download the installer with GCC Compiler, e.g., codeblocks-13.12mingw-setup.exe (98 MB) (which includes MinGW's GNU GCC compiler and GNU GDB debugger).

Step 2: Install

Run the downloaded installer. Accept the default options.

Verify the Compiler's and Debugger's Path: (For CodeBlocks 13.12 For Windows) Goto 'Settings' menu ⇒ 'Compiler...' ⇒ In 'Selected Compiler', choose 'GNU GCC Compiler' ⇒ Select tab 'Toolchain Executables' ⇒ Check the 'Compiler's Installation Directory'. It shall be set to the 'MinGW' sub-directory of the CodeBlocks installation directory, for example, suppose that CodeBlocks is installed in 'c:Program Filescodeblocks', set it to 'c:Program FilescodeblocksMinGW'.

Similarly, check the debugger's path. Goto 'Settings' menu ⇒ 'Debugger...' ⇒ Expand 'GDB/CDB debugger' ⇒ Select 'Default' ⇒ In 'Executable path', provide the full-path name of 'gdb.exe', for example, 'c:Program FilescodeblocksMinGWbingdb.exe'.

Notes For CodeBlocks 13.12 For Windows (Jan 2014)

I encountered problem running debugger with CodeBlocks 13.12 bundled with MinGW (gcc v4.7.1 and gdb 7.5).

I resolved by installing the latast MinGW (gcc 4.8.1, gdb 7.6.1) separately (See 'How to install MinGW'), and configured the compiler's and debugger's path to the installed MinGW as in the above step.

Alternatively, consider using Eclipse or Netbeans with Cygwin or MinGW GNU GCC compiler.

Writing C/C++ Programs in CodeBlocks

Read:

CodeBlocks' Wiki @ http://wiki.codeblocks.org/index.php?title=Main_Page, in particular, 'Creating a new project' and 'Debug my Program'.

Writing Toy Programs (without Creating a Project)

To write toy programs (such as few-line simple programming exercises):

File ⇒ New ⇒ Empty File.
Enter (copy and paste) the following codes: Save the file as 'Hello.cpp' in your project directory (e.g., 'd:project').
Build (Compile and Link): Select 'Build' menu ⇒ Build (Ctrl-F9).
Run: Select 'Build' menu ⇒ Run (Ctrl-F10).

The drawback is you cannot debug program without creating a project.

Read 'CodeBlocks' Common Errors' if ....

Writing Programs (under Project)

Other than the few-line toy programs, you shall create a project for each of your application. A project contains related files such as source codes, header files, and relevant resources. Also, under CodeBlocks, you can only debug your program under a project - single-file program (in previous section) debugging is not supported.

File ⇒ New ⇒ Project... ⇒ Console Application ⇒ Go.
The 'Console Application' wizard appears:
1. Next
2. Select 'C++' ⇒ Next.
3. In 'Project Title', enter 'HelloProject'. In 'Folder to create project in', set to your working directory, e.g., 'd:project'. Accept the default for the rest ⇒ Next.
  A project directory 'HelloProject' will be created under 'd:project', with a project configuration filename of 'HelloProject.cbp'. You could later create more projects under this working directory 'd:project'.
4. In 'Compiler' field, accept the defaults of 'GNU GCC Compiler' ⇒ Finish.
Under the 'Management' pane ⇒ Choose 'Projects' tab ⇒ Expand the project node 'HelloProject' ⇒ Expand 'Source' node ⇒ Double-click 'main.cpp', which is a template program to say 'Hello, world!'.
To build the program, select 'Build' menu ⇒ Build.
To run the program, select 'Build' menu ⇒ Run.
To create more source file or header file under the project:
1. File ⇒ New File... ⇒ Select C/C++ source or C/C++ header.
2. C++ ⇒ Next.
3. In 'Filename with full path' ⇒ Click the 'Navigate' (...) button to navigate to the project directory and enter the new file name. Check both the 'Debug' and 'Release' boxes (or 'All') ⇒ Finish.

Set Active Project

You can create more projects. However, the 'Build' and 'Run' commands are always apply to the active project, which is shown in bold. To activate a project: right-click on the project name ⇒ 'Activate Project'.

Open an Existing Project

To open an existing project, either:

From 'File' menu ⇒ 'Recent Projects' ⇒ Choose the desired project; or
From 'File' menu ⇒ 'Open...' ⇒ Navigate to your project directory ⇒ Choose 'ProjectName.cbp', where '.cbp' stands for CodeBlocks-Project.

Read 'CodeBlocks' Common Errors' if ....

Writing Many Toy Programs under ONE Project

Although a project may contain many source files, there can only be one main() function among all the source files. That is, you cannot keep two toy programs (each having a main() function) in one project (you will get the error 'multiple definition of 'main' when you try to build the project). You need to create one project for each toy program. This is clumsy!

Codeblock, nonetheless, allow you to add files or remove files from a project. The removed files are not deleted and remain in the folder. We could use this feature to write many toy programs under one project. The procedures are as follows:

Create a C/C++ project called 'ToyProgramProject' (read previous section on how to create a project). You shall get a 'main.cpp' automatically.
Write your toy program on 'main.cpp'. Build and run the program.
To write another program: select 'File' ⇒ 'Save File as' ⇒ enter a program name such as 'myfirst.cpp'. Remove it from the project (because each project can only have one file with main()), by right-click on 'myfirst.cpp' ⇒ 'remove file from project'.
Continue to write your second toy program on 'main.cpp'. Build and run.
Repeat Step 3 and 4 for another toy program.
Suppose that you wish to run 'myfirst.cpp' again: First remove 'main.cpp' from the project. Right-click on the project ⇒ Add File... ⇒ Choose 'myfirst.cpp' ⇒ Open ⇒ Check both the 'Debug' and 'Release' box ⇒ OK. You can now build and run the 'myfirst.cpp'.

In brief, use the 'Add File' and 'Remove File' to place your desired toy program file (with the main() function) under the active project. You can then 'Build' the project and 'Run' your toy program.

CodeBlocks' Common Errors

Cannot Compile any C/C++ Program after Installing CodeBlocks

Check:

You downloaded the CodeBlocks with 'MinGW GNU C/C++ Compiler' (e.g., 'codeblocks-10.05mingw-setup.exe').
Goto 'Settings' menu ⇒ 'Compiler...' ⇒ Select tab 'Toolchain Executables' ⇒ Check the 'Compiler's Installation Directory'. It shall be set to the 'MinGW' sub-directory of the CodeBlocks installation directory, e.g., 'c:Program FilescodeblocksMinGW' suppose that CodeBlocks is installed in 'c:Program Filescodeblocks'.

Cannot Build or Run Program - Build/Run Buttons and Menu-Items are Grey and Not Selectable

A previous program is still running. You need to terminate the program by closing the output console window.

Error: undefined reference to `WinMain@16'

Check that you have a main() function in your function. Check your spelling of main!

(For C Programs) System Error: 'xxx.exe has stopped working'

Check your scanf() function. You probably omitted the '&' before the variable name.

Debugging C/C++ Program in CodeBlocks

Able to use a graphics debugger to debug program is crucial in programming. It could save you countless of hours guessing on what went wrong.

Step 0: Write a C++ Program

Follow the steps in 'Writing C++ Program (with Project)' to write the following C++ program, to be used for the debugging practice. This program computes and prints the factorial of n (=1*2*3*...*n). The program, however, has a logical error and produce a wrong answer for n=20. (It outputs 'The Factorial of 20 is -2102132736' - a negative number?!).

Run the program and observe the output produced:

Let's use the graphic debugger to debug the program.

Step 1: Set an Initial Breakpoint

Set an initial breakpoint at main() function by clicking on the 'left-margin' (right-side of the line number) of the line containing main(). A red circle appears indicating a breakpoint has been set at that line. A breakpoint suspends program execution for you to examine the internal states.

Step 2: Start Debugging

From 'Debug' menu, select 'Start (F8)'. The program begins execution but suspends its execution at the breakpoint, i.e., main(). An yellow arrow (as shown in the diagram) appears and points at the main(), indicating this is the next statement to be executed.

Step 3: Single-Step and Watch the Variables and Outputs

Click the 'Debugging Windows' button on the 'Debug' toolbar and select 'Watches' to enable the 'Watch' pane. (You could also do it from the 'Debug' menu.)

Click the 'Next line' button on the 'Debug' toolbar to single-step thru your program. At each of the step, you could examine the internal state of your program, such as the value of the variables (in the 'Watches' pane), the outputs produced by your program (in the console), etc.

Single-stepping thru the program and watching the values of the variables and the outputs produced is the ultimate mean in debugging programs - because it is exactly how the computer runs your program!

Step 4: Breakpoint, Run-To-Cursor, Continue and Stop

As mentioned, a breakpoint suspends program execution and let you examine the internal states of the program. To set a breakpoint on a particular line, click the left-margin of that line (or select 'Toggle Breakpoint (F5)' from 'Debug' menu).

The 'Continue' resumes the program execution, up to the next breakpoint, or till the end of the program.

Single-stepping thru a loop with a large count is time-consuming. You could set a breakpoint at the statement immediately outside the loop (e.g., Line 12 of the above program), and issue 'Continue' to complete the loop.

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Alternatively, you can place the cursor on a particular line, right-click and select 'Run-To-Cursor' to resume execution up to this line.

The 'Stop' ends the debugging session. Always terminate your current debugging session using 'Stop' or 'Continue' till the end of the program.

Important: I can's stress more that mastering the use of debugger is crucial in programming. Explore the features provided by the debuggers.

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Other Debugging Features

Step-Into and Step-Out: To debug a function, you need to use 'Step-Into' to step into the first statement of the function. ('Step-Over' runs the function in a single step without stepping through the statements inside the function.) You could use 'Step-Out' to return to the caller, anywhere within the function. Alternatively, you can set a breakpoint inside a function.

Watching a Variable: To add a variable into the 'Watches' panel, goto 'Debug' ⇒ 'Edit Watch...' ⇒ 'Add' ⇒ Enter the variable name ⇒ You can select the format, or 'watch as array'.

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