Configure VS Code for Clang/LLVM on macOS (2023)

In this tutorial, you configure Visual Studio Code on macOS to use the Clang/LLVM compiler and debugger.

After configuring VS Code, you will compile and debug a simple C++ program in VS Code. This tutorial does not teach you about Clang or the C++ language. For those subjects, there are many good resources available on the Web.

If you have any trouble, feel free to file an issue for this tutorial in the VS Code documentation repository.

Prerequisites

To successfully complete this tutorial, you must do the following:

  1. Install Visual Studio Code on macOS.

  2. Install the C++ extension for VS Code. You can install the C/C++ extension by searching for 'c++' in the Extensions view (⇧⌘X (Windows, Linux Ctrl+Shift+X)).

    Configure VS Code for Clang/LLVM on macOS (1)

Ensure Clang is installed

Clang may already be installed on your Mac. To verify that it is, open a macOS Terminal window and enter the following command:

clang --version
  1. If Clang isn't installed, enter the following command to install the command line developer tools:
xcode-select --install

Create Hello World

From the macOS Terminal, create an empty folder called projects where you can store all your VS Code projects, then create a subfolder called helloworld, navigate into it, and open VS Code in that folder by entering the following commands:

mkdir projectscd projectsmkdir helloworldcd helloworldcode .

The code . command opens VS Code in the current working folder, which becomes your "workspace". As you go through the tutorial, you will create three files in a .vscode folder in the workspace:

  • tasks.json (compiler build settings)
  • launch.json (debugger settings)
  • c_cpp_properties.json (compiler path and IntelliSense settings)

Add hello world source code file

In the File Explorer title bar, select New File and name the file helloworld.cpp.

Configure VS Code for Clang/LLVM on macOS (2)

Paste in the following source code:

#include <iostream>#include <vector>#include <string>using namespace std;int main(){ vector<string> msg {"Hello", "C++", "World", "from", "VS Code", "and the C++ extension!"}; for (const string& word : msg) { cout << word << " "; } cout << endl;}

Now press ⌘S (Windows, Linux Ctrl+S) to save the file. Notice that your files are listed in the File Explorer view (⇧⌘E (Windows, Linux Ctrl+Shift+E)) in the side bar of VS Code:

Configure VS Code for Clang/LLVM on macOS (3)

You can also enable Auto Save to automatically save your file changes, by checking Auto Save in the main File menu.

(Video) Setting up VSCode and Clang for C++ on macOS

The Activity Bar on the edge of Visual Studio Code lets you open different views such as Search, Source Control, and Run. You'll look at the Run view later in this tutorial. You can find out more about the other views in the VS Code User Interface documentation.

Note: When you save or open a C++ file, you may see a notification from the C/C++ extension about the availability of an Insiders version, which lets you test new features and fixes. You can ignore this notification by selecting the X (Clear Notification).

Explore IntelliSense

In the helloworld.cpp file, hover over vector or string to see type information. After the declaration of the msg variable, start typing msg. as you would when calling a member function. You should immediately see a completion list that shows all the member functions, and a window that shows the type information for the msg object:

Configure VS Code for Clang/LLVM on macOS (4)

You can press the Tab key to insert the selected member. Then, when you add the opening parenthesis, you'll see information about arguments that the function requires.

Run helloworld.cpp

Remember, the C++ extension uses the C++ compiler you have installed on your machine to build your program. Make sure you have a C++ compiler installed before attempting to run and debug helloworld.cpp in VS Code.

  1. Open helloworld.cpp so that it is the active file.

  2. Press the play button in the top right corner of the editor.

    Configure VS Code for Clang/LLVM on macOS (5)

  3. Choose C/C++: clang++ build and debug active file from the list of detected compilers on your system.

    Configure VS Code for Clang/LLVM on macOS (6)

You'll only be asked to choose a compiler the first time you run helloworld.cpp. This compiler will be set as the "default" compiler in tasks.json file.

  1. After the build succeeds, your program's output will appear in the integrated Terminal.

    Configure VS Code for Clang/LLVM on macOS (7)

The first time you run your program, the C++ extension creates tasks.json, which you'll find in your project's .vscode folder. tasks.json stores build configurations.

Your new tasks.json file should look similar to the JSON below:

{ // See https://go.microsoft.com/fwlink/?LinkId=733558 // for the documentation about the tasks.json format "version": "2.0.0", "tasks": [ { "type": "shell", "label": "C/C++: clang++ build active file", "command": "/usr/bin/clang++", "args": [ "-std=c++17", "-stdlib=libc++", "-g", "${file}", "-o", "${fileDirname}/${fileBasenameNoExtension}" ], "options": { "cwd": "${workspaceFolder}" }, "problemMatcher": ["$gcc"], "group": { "kind": "build", "isDefault": true }, "detail": "Task generated by Debugger." } ]}

Note: You can learn more about tasks.json variables in the variables reference.

The command setting specifies the program to run. In this case, "clang++" is the driver that causes the Clang compiler to expect C++ code and link against the C++ standard library.

(Video) Use Clang on Windows, Linux, and macOS

The args array specifies the command-line arguments that will be passed to clang++. These arguments must be specified in the order expected by the compiler.

This task tells the C++ compiler to compile the active file (${file}), and create an output file (-o switch) in the current directory (${fileDirname}) with the same name as the active file (${fileBasenameNoExtension}), resulting in helloworld for our example.

The label value is what you will see in the tasks list. Name this whatever you like.

The detail value is what you will as the description of the task in the tasks list. It's highly recommended to rename this value to differentiate it from similar tasks.

The problemMatcher value selects the output parser to use for finding errors and warnings in the compiler output. For clang++, you'll get the best results if you use the $gcc problem matcher.

From now on, the play button will read from tasks.json to figure out how to build and run your program. You can define multiple build tasks in tasks.json, and whichever task is marked as the default will be used by the play button. In case you need to change the default compiler, you can run Tasks: Configure default build task. Alternatively you can modify the tasks.json file and remove the default by replacing this segment:

 "group": { "kind": "build", "isDefault": true },

with this:

 "group": "build",

Modifying tasks.json

You can modify your tasks.json to build multiple C++ files by using an argument like "${workspaceFolder}/*.cpp" instead of ${file}. This will build all .cpp files in your current folder. You can also modify the output filename by replacing "${fileDirname}/${fileBasenameNoExtension}" with a hard-coded filename (for example "${workspaceFolder}/myProgram.out").

Debug helloworld.cpp

  1. Go back to helloworld.cpp so that it is the active file.
  2. Set a breakpoint by clicking on the editor margin or using F9 on the current line.Configure VS Code for Clang/LLVM on macOS (8)
  3. From the drop-down next to the play button, select Debug C/C++ File.Configure VS Code for Clang/LLVM on macOS (9)Configure VS Code for Clang/LLVM on macOS (10)
  4. Choose clang++ build and debug active file from the list of detected compilers on your system (you'll only be asked to choose a compiler the first time you run/debug helloworld.cpp).Configure VS Code for Clang/LLVM on macOS (11)

The play button has two modes: Run C/C++ File and Debug C/C++ File. It will default to the last-used mode. If you see the debug icon in the play button, you can just click the play button to debug, instead of selecting the drop-down menu item.

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Explore the debugger

Before you start stepping through the code, let's take a moment to notice several changes in the user interface:

  • The Integrated Terminal appears at the bottom of the source code editor. In the Debug Output tab, you see output that indicates the debugger is up and running.

  • The editor highlights the first statement in the main method. This is a breakpoint that the C++ extension automatically sets for you:

    Configure VS Code for Clang/LLVM on macOS (13)

  • The Run and Debug view on the left shows debugging information. You'll see an example later in the tutorial.

  • At the top of the code editor, a debugging control panel appears. You can move this around the screen by grabbing the dots on the left side.

Step through the code

Now you're ready to start stepping through the code.

  1. Click or press the Step over icon in the debugging control panel so that the for (const string& word : msg) statement is highlighted.

    (Video) How To Run C & C++ On Mac OSX In VSCode / Code Runner / Install Xcode to get gcc & clang compiler

    Configure VS Code for Clang/LLVM on macOS (14)

    The Step Over command skips over all the internal function calls within the vector and string classes that are invoked when the msg variable is created and initialized. Notice the change in the Variables window. The contents of msg are visible because that statement has completed.

  2. Press Step over again to advance to the next statement (skipping over all the internal code that is executed to initialize the loop). Now, the Variables window shows information about the loop variable.

  3. Press Step over again to execute the cout statement. Note As of the March 2019 version of the extension, no output will appear in the DEBUG CONSOLE until the last cout completes.

Set a watch

You might want to keep track of the value of a variable as your program executes. You can do this by setting a watch on the variable.

  1. Place the insertion point inside the loop. In the Watch window, click the plus sign and in the text box, type word, which is the name of the loop variable. Now view the Watch window as you step through the loop.

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  2. To quickly view the value of any variable while execution is paused, you can hover over it with the mouse pointer.

    Configure VS Code for Clang/LLVM on macOS (16)

Customize debugging with launch.json

When you debug with the play button or F5, the C++ extension creates a dynamic debug configuration on the fly.

There are cases where you'd want to customize your debug configuration, such as specifying arguments to pass to the program at runtime. You can define custom debug configurations in a launch.json file.

To create launch.json, choose Add Debug Configuration from the play button drop-down menu.

Configure VS Code for Clang/LLVM on macOS (17)

You'll then see a dropdown for various predefined debugging configurations. Choose clang++ build and debug active file.Configure VS Code for Clang/LLVM on macOS (18)

VS Code creates a launch.json file, which looks something like this:

{ // Use IntelliSense to learn about possible attributes. // Hover to view descriptions of existing attributes. // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387 "version": "0.2.0", "configurations": [ { "name": "C/C++: clang++ build and debug active file", "type": "cppdbg", "request": "launch", "program": "${fileDirname}/${fileBasenameNoExtension}", "args": [], "stopAtEntry": true, "cwd": "${workspaceFolder}", "environment": [], "externalConsole": false, "MIMode": "lldb", "preLaunchTask": "C/C++: clang++ build active file" } ]}

The program setting specifies the program you want to debug. Here it is set to the active file folder ${fileDirname} and active filename ${fileBasenameNoExtension}, which if helloworld.cpp is the active file will be helloworld. The args property is an array of arguments to pass to the program at runtime.

By default, the C++ extension won't add any breakpoints to your source code and the stopAtEntry value is set to false.

Change the stopAtEntry value to true to cause the debugger to stop on the main method when you start debugging.

(Video) How to install Clang in Macbook Intel or M1 - Tutorial

Ensure that the preLaunchTask value matches the label of the build task in the tasks.json file.

From now on, the play button and F5 will read from your launch.json file when launching your program for debugging.

C/C++ configuration

For more control over the C/C++ extension, create a c_cpp_properties.json file, which allows you to change settings such as the path to the compiler, include paths, which C++ standard to compile against (such as C++17), and more.

View the C/C++ configuration UI by running the command C/C++: Edit Configurations (UI) from the Command Palette (⇧⌘P (Windows, Linux Ctrl+Shift+P)).

Configure VS Code for Clang/LLVM on macOS (19)

This opens the C/C++ Configurations page.

Configure VS Code for Clang/LLVM on macOS (20)

Visual Studio Code places these settings in .vscode/c_cpp_properties.json. If you open that file directly, it should look something like this:

{ "configurations": [ { "name": "Mac", "includePath": ["${workspaceFolder}/**"], "defines": [], "macFrameworkPath": [ "/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks" ], "compilerPath": "/usr/bin/clang", "cStandard": "c11", "cppStandard": "c++17", "intelliSenseMode": "clang-x64" } ], "version": 4}

You only need to modify the Include path setting if your program includes header files that are not in your workspace or the standard library path.

Compiler path

compilerPath is an important configuration setting. The extension uses it to infer the path to the C++ standard library header files. When the extension knows where to find those files, it can provide useful features like smart completions and Go to Definition navigation.

The C/C++ extension attempts to populate compilerPath with the default compiler location based on what it finds on your system. The compilerPath search order is:

  • Your PATH for the names of known compilers. The order the compilers appear in the list depends on your PATH.
  • Then hard-coded Xcode paths are searched, such as /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/

Mac framework path

On the C/C++ Configuration screen, scroll down and expand Advanced Settings and ensure that Mac framework path points to the system header files. For example: /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks

Reusing your C++ configuration

VS Code is now configured to use Clang on macOS. The configuration applies to the current workspace. To reuse the configuration, just copy the JSON files to a .vscode folder in a new project folder (workspace) and change the names of the source file(s) and executable as needed.

Troubleshooting

Compiler and linking errors

The most common cause of errors (such as undefined _main, or attempting to link with file built for unknown-unsupported file format, and so on) occurs when helloworld.cpp is not the active file when you start a build or start debugging. This is because the compiler is trying to compile something that isn't source code, like your launch.json, tasks.json, or c_cpp_properties.json file.

If you see build errors mentioning "C++11 extensions", you may not have updated your tasks.json build task to use the clang++ argument --std=c++17. By default, clang++ uses the C++98 standard, which doesn't support the initialization used in helloworld.cpp. Make sure to replace the entire contents of your tasks.json file with the code block provided in the Run helloworld.cpp section.

Terminal won't launch For input

On macOS Catalina and onwards, you might have a issue where you are unable to enter input, even after setting "externalConsole": true. A terminal window opens, but it does not actually allow you type any input.

The issue is currently tracked #5079.

The workaround is to have VS Code launch the terminal once. You can do this by adding and running this task in your tasks.json:

(Video) 2021 Visual Studio Code | (Latest)Mingw Installation(GCC/CLANG/LLVM)

{ "label": "Open Terminal", "type": "shell", "command": "osascript -e 'tell application \"Terminal\"\ndo script \"echo hello\"\nend tell'", "problemMatcher": []}

You can run this specific task using Terminal > Run Task... and select Open Terminal.

Once you accept the permission request, then the external console should appear when you debug.

Next steps

  • Explore the VS Code User Guide.
  • Review the Overview of the C++ extension
  • Create a new workspace, copy your .json files to it, adjust the necessary settings for the new workspace path, program name, and so on, and start coding!

5/13/2022

FAQs

How do I set up clang on my Mac? ›

Clang Compilers
  1. Open a Terminal window. ...
  2. If you want to install or update the Clang compilers, enter the command command xcode-select --install The following pop-up windout should appear on your screen (in this example I have placed it withing the Terminal window).
  3. Click the Install button. ...
  4. Click the Agree button.

Does clang work on Mac? ›

Clang can be installed on macOS by using Visual studio code or with Homebrew. The first step is to install Visual Studio Code on macOS.

How to install clang in Visual Studio Code? ›

How to Install Clang-Format on Windows. Download Clang for Windows. Install the package and add the path of %LLVM% \bin to your system environment. The shortcut Alter+Shift+F now works in Visual Studio Code for Windows.

How to use clang-format in VSCode? ›

The first step is to find and open the vscode settings. json file.
...
You'll want to add some code in there to set up some formatting functionality.
  1. Define the location of the clang-format. ...
  2. Define your clang-format style. ...
  3. Set your editor to format on save.
Feb 5, 2021

How to install LLVM clang on Mac? ›

Simply run this command:
  1. brew install --with-toolchain llvm. ...
  2. brew info llvm. ...
  3. brew update $ brew upgrade. ...
  4. $(brew --prefix llvm)/bin. ...
  5. echo 'export PATH="/usr/local/opt/llvm/bin:$PATH"' >> ~/.bash_profile. ...
  6. export CC := clang export CXX := $(CC)++ ...
  7. export CC := /usr/local/opt/llvm/bin/clang export CXX := $(CC)++
Feb 24, 2017

How do I run LLVM on Mac? ›

Instructions
  1. To install llvm-11, run the following command in macOS terminal (Applications->Utilities->Terminal) sudo port install llvm-11 Copy.
  2. To see what files were installed by llvm-11, run: port contents llvm-11 Copy.
  3. To later upgrade llvm-11, run: sudo port selfupdate && sudo port upgrade llvm-11 Copy.

Does macOS use Clang or GCC? ›

Release Clang Versions

From Xcode 4.2, Clang is the default compiler for Mac OS X.

How do you use Clang-format on Mac? ›

About ClangFormat
  1. Step 1) Install clang-format. For mac/linux, you can install with a package manager. ...
  2. Step 2) Run it. Navigate to the folder you'd like to run clang-format in and then run the following command, replacing File_To_Format.cpp with the filename of the file you'd like to format: ...
  3. Step 3) Add an alias to your .

Does Mac GCC use Clang? ›

Apple also ships a /usr/bin/gcc which just runs clang .

Does VS Code support clang? ›

Reusing your C++ configuration

VS Code is now configured to use Clang on macOS. The configuration applies to the current workspace. To reuse the configuration, just copy the JSON files to a . vscode folder in a new project folder (workspace) and change the names of the source file(s) and executable as needed.

How do I configure clang format? ›

Configuring Style with clang-format

clang-format supports two ways to provide custom style options: directly specify style configuration in the -style= command line option or use -style=file and put style configuration in the . clang-format or _clang-format file in the project directory.

How do I enable clang tidy in VS Code? ›

To turn on automatic code analysis, open your project settings by selecting “Preferences: Open Settings (UI)” from the Command Palette (Ctrl + Shift + P). Then search for “code analysis” to find all the clang-tidy settings and set Clang Tidy: Enabled to true.

Where is clang-format on macOS? ›

If you have the llvm toolchain already installed, you can find the clang-format.py file in /usr/local/opt/llvm/share/clang/clang-format.py without having to install a separate clang-format binary through Homebrew.

Where is clang-format file in Mac? ›

clang-format is located in clang/tools/clang-format and can be used to format C/C++/Java/JavaScript/JSON/Objective-C/Protobuf/C# code.

How do I run clang in Visual Studio? ›

To configure a Visual Studio project to use Clang, right-click on the project node in Solution Explorer and choose Properties. Typically, you should first choose All configurations at the top of the dialog. Then, under General > Platform Toolset, choose LLVM (clang-cl) and then OK.

Where is the LLVM config file? ›

On my system (OSX El Capitan with Homebrew, llvm installed), it's installed under /usr/local/bin/llvm-config.

What is the difference between clang and LLVM? ›

Here Clang is the frontend and LLVM is the backend. LLVM defines a common intermediate representation (IR) based on the single static assignment (SSA) form. This makes many optimizations to be easily performed on the IR.

How do I update the include path in Visual Studio Code on a Mac? ›

If the cursor is on the error, you will see the lightbulb to the left. Click that, and then Update “includePath” setting. VSCode will create and open a file called “c_cpp_properties.
...
VSCode – Include Paths
  1. syntax highlighting,
  2. error checking while we type, and.
  3. automatic code completion, where it guesses while we type.
Apr 9, 2022

Does macOS have LLVM? ›

All of Apple's operating systems, iOS, macOS, tvOS and watchOS, are built with LLVM technologies.

Does Apple use LLVM? ›

LLVM has been an integral part of Apple's Xcode development tools for macOS and iOS since Xcode 4. In 2006, Lattner started working on a new project called Clang. The combination of Clang front-end and LLVM back-end is called Clang/LLVM or simply Clang.

Does Xcode include LLVM? ›

Xcode also includes the LLVM GCC compiler, which uses the GCC compiler front end for maximum compatibility, and the LLVM back end, which takes advantage of LLVM's advanced code generator.

How do I make my Mac use GCC instead of Clang? ›

  1. Install HomeBrew first.
  2. run brew install gcc in terminal.
  3. Type g++-11 to check if installation done succesfully.
  4. Now use those commands 1 by 1.
  5. sudo ln -s /usr/local/bin/gcc-11 /usr/local/bin/gcc.
  6. sudo ln -s /usr/local/bin/g++-11 /usr/local/bin/g++
  7. sudo ln -s /usr/local/bin/c++-11 /usr/local/bin/c++

Does Clang optimize better than GCC? ›

Clang reduces the single-thread compilation time by 5% to 10% compared with GCC. Therefore, Clang offers more advantages for the construction of large projects.

Is GCC better than LLVM? ›

While LLVM and GCC both support a wide variety languages and libraries, they are licensed and developed differently. LLVM libraries are licensed more liberally and GCC has more restrictions for its reuse. When it comes to performance differences, GCC has been considered superior in the past.

How to install clang format 10 on Mac? ›

Instructions
  1. To install clang-10, run the following command in macOS terminal (Applications->Utilities->Terminal) sudo port install clang-10 Copy.
  2. To see what files were installed by clang-10, run: port contents clang-10 Copy.
  3. To later upgrade clang-10, run: sudo port selfupdate && sudo port upgrade clang-10 Copy.

Do I need GCC for clang? ›

Clang is a completely separate compiler (written entirely from scratch, using LLVM). You don't need GCC to use Clang, as can be shown in the case of FreeBSD (they completely replaced GCC with Clang/LLVM and don't install GCC in the base anymore for licensing reasons).

Why does Apple use clang instead of GCC? ›

"GCC is licensed under the GPL license. clang uses a BSD license, which allows it to be used by projects that do not themselves want to be GPL."

Does Xcode use GCC or Clang? ›

It uses the Clang frontend and LLVM backend optimizer and code generator. Apple claims that the Clang parser is 3x faster than GCC for debug builds whilst maintaining compatibility with GCC. However the advantage of using Clang is about much more than just speed.

What is the latest Clang version of Mac? ›

Clang 14, the latest major version of Clang as of March 2022, has full support for all published C++ standards up to C++17, implements most features of C++20, and has initial support for the upcoming C++23 standard. Since v6.

Does Xcode have Clang? ›

Xcode's default toolchain bundled with clang 13. But clang bundled with Swift Open Source toolchain is 10 which behaves different to the default toolchain of current version of Xcode (Xcode 13.1) when compiling Swift project with C++ sources.

Does clang depend on GCC? ›

This compiler being standard clang, it relies on a GCC installation for a number of things. One problem appears on HPC clusters, where the compilers are never in a standard path (they are usually in a shared filesystem).

How to compile using clang VS Code? ›

Run C++ code with vscode

From the main menu, choose Terminal > Configure Default Build Task. A dropdown will appear listing various predefined build tasks for the compilers that VS Code found on your machine. Choose C/C++ clang++ build active file to build the file that is currently displayed (active) in the editor.

Where does clang-format look for clang-format? ›

clang-format is located in clang/tools/clang-format and can be used to format C/C++/Obj-C code.

How to use clang-format command line? ›

Using clang-format on C++ Code
  1. Make codes changes in Electron repository.
  2. Run git add your_changed_file.cc .
  3. Run git-clang-format , and you will probably see modifications in your_changed_file.cc , these modifications are generated from clang-format .
  4. Run git add your_changed_file.cc , and commit your change.

Where should I put clang-format? ›

clang-format file, we need to place it in the project folder or in any parent folder of the file you want to format. clang-format.exe searches for the config file automatically starting with the folder where the file you want to format is located, all the way to the topmost directory.

How do I configure VS Code settings? ›

To open the Settings editor, use the following VS Code menu command:
  1. On Windows/Linux - File > Preferences > Settings.
  2. On macOS - Code > Preferences > Settings.

How do you use clang tidy and clang format? ›

clang-tidy in our project root directory and, now, we just have to run part of the previous command with the option -config='' to get the content of the . clang-tidy file as default configuration file: $> clang-tidy Example. [ch]pp -config='' -- -std=c++11 -I/usr/include/c++/5/ 2533 warnings generated.

How do I open linker settings in VS Code? ›

Linker options can be set inside or outside of Visual Studio. Within Visual Studio, you access linker options by right-clicking on a project node in Solution Explorer and choosing Properties to display the property pages.

How to use clang format in Visual Studio 2022? ›

clang-format file in my project and can apply the formatting with Ctrl+K, Ctrl+D .

How do you use clang-format on Mac? ›

About ClangFormat
  1. Step 1) Install clang-format. For mac/linux, you can install with a package manager. ...
  2. Step 2) Run it. Navigate to the folder you'd like to run clang-format in and then run the following command, replacing File_To_Format.cpp with the filename of the file you'd like to format: ...
  3. Step 3) Add an alias to your .

Does Mac GCC use clang? ›

Apple also ships a /usr/bin/gcc which just runs clang .

How do I configure clang-format? ›

Configuring Style with clang-format

clang-format supports two ways to provide custom style options: directly specify style configuration in the -style= command line option or use -style=file and put style configuration in the . clang-format or _clang-format file in the project directory.

How to install clang 14 on Mac? ›

Instructions
  1. To install clang-14, run the following command in macOS terminal (Applications->Utilities->Terminal) sudo port install clang-14 Copy.
  2. To see what files were installed by clang-14, run: port contents clang-14 Copy.
  3. To later upgrade clang-14, run: sudo port selfupdate && sudo port upgrade clang-14 Copy.

How to use clang in Visual Studio? ›

To configure a Visual Studio project to use Clang, right-click on the project node in Solution Explorer and choose Properties. Typically, you should first choose All configurations at the top of the dialog. Then, under General > Platform Toolset, choose LLVM (clang-cl) and then OK.

Should I use Clang or GCC on Mac? ›

Clang is much faster and uses far less memory than GCC. Clang aims to provide extremely clear and concise diagnostics (error and warning messages), and includes support for expressive diagnostics. GCC's warnings are sometimes acceptable, but are often confusing and it does not support expressive diagnostics.

Why does Apple use Clang instead of GCC? ›

"GCC is licensed under the GPL license. clang uses a BSD license, which allows it to be used by projects that do not themselves want to be GPL."

Does clang optimize better than GCC? ›

Clang reduces the single-thread compilation time by 5% to 10% compared with GCC. Therefore, Clang offers more advantages for the construction of large projects.

Does Xcode have clang? ›

Xcode's default toolchain bundled with clang 13. But clang bundled with Swift Open Source toolchain is 10 which behaves different to the default toolchain of current version of Xcode (Xcode 13.1) when compiling Swift project with C++ sources.

How do I get SVN for Mac? ›

To install the Subversion command line client on a macOS, follow these steps:
  1. Download the appropriate macOS binary package for your macOS version (macOS 10.8 is the latest) from Wandisco.
  2. Install the file and follow the steps.
  3. Once installed, run the command export PATH=/opt/subversion/bin:$PATH to set the proper path.
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