Clang++ Compiler

Clang is a popular compiler for the C language family (such as C/C++, Objective C/C++). Clang++ is referred to as the C++ compiler within Clang. It is the default C++ compiler on OSX, comes with XCode and the XCode command line tools.

Installation

Install the XCode command line tools:

$ sudo xcode-select --install

This will trigger the download and installation.

If you already have those installed, but are unable to update them to a later version, first remove them manually, then re-install:

$ sudo rm -rf /Library/Developer/CommandLineTools
$ sudo xcode-select --install

Usage

Clang++ is a command line tool, which features a lot of optional parameters.

Basic compilation

$ clang++ --std=c++20 -g <input_file> -o <output_file>

--std=<standard>:

Language standard to compile for. Possible: c++98, c++11, c++14, c++17, c++20

-o <file>:

Write output to <file>

-g:

Generate source-level debug information. Needed for debugging.