1. In OS X, GCC is part of Xcode's command tools, so first, open the Mac App Store and install Xcode for free. Then, open Xcode, go to Xcode menu (on the menu bar) Preferences Downloads, and install Command Line Tools. You will get commands like gcc, make, purge.
2. From Xcode 4.2, Clang is the default compiler for Mac OS X. Building Clang and Working with the Code.
3. Clang package on OS X. because of a missing clobber the first ever build with clang on m-i was 82e6dc758859. The first m-c build should be 9b876829ed32. on m-i the dmg went from 45650592 to 44230642 bytes. ccache is disable for now, but try builds still look faster with clang than with gcc + ccache.

In the last year we have seen the default compiler change (gcc to clang), the packaging of Xcode change (moving the command line tools to an external installation), X11 for OS X ownership change, a new version of Homebrew (0.9), and bunch of other smaller things in the Homebrew/Apple world that have basically introduced all kinds of small problems. Packaged Builds (Mac OS X) Semi-regular pre-built binaries of the analyzer are available on Mac OS X. These are built to run on OS X 10.7 and later. Builds are released frequently.

About the App

• App name: clang-format
• App description: C/C++/Obj-C formatting tools: standalone and editor plugins
• App website: http://clang.llvm.org/docs/ClangFormat.html

Install the App

1. Press Command+Space and type Terminal and press enter/return key.
2. Run in Terminal app:
   ruby -e '$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)' < /dev/null 2> /dev/null
   and press enter/return key.
   If the screen prompts you to enter a password, please enter your Mac's user password to continue. When you type the password, it won't be displayed on screen, but the system would accept it. So just type your password and press ENTER/RETURN key. Then wait for the command to finish.
3. Run:
   brew install clang-format

Done! You can now use clang-format.

What is Static Analysis?

The term 'static analysis' is conflated, but here we use it to meana collection of algorithms and techniques used to analyze source code in orderto automatically find bugs. The idea is similar in spirit to compiler warnings(which can be useful for finding coding errors) but to take that idea a stepfurther and find bugs that are traditionally found using run-time debuggingtechniques such as testing.

Static analysis bug-finding tools have evolved over the last several decadesfrom basic syntactic checkers to those that find deep bugs by reasoning aboutthe semantics of code. The goal of the Clang Static Analyzer is to provide aindustrial-quality static analysis framework for analyzing C, C++, andObjective-C programs that is freely available, extensible, and has a high quality of implementation.

Part of Clang and LLVM

As its name implies, the Clang Static Analyzer is built on top of Clang and LLVM.Strictly speaking, the analyzer is part of Clang, as Clang consists of a set ofreusable C++ libraries for building powerful source-level tools. The staticanalysis engine used by the Clang Static Analyzer is a Clang library, and hasthe capability to be reused in different contexts and by different clients.

Important Points to Consider

While we believe that the static analyzer is already very useful for findingbugs, we ask you to bear in mind a few points when using it.

Clang For Mac Os X Downloads

Work-in-Progress

The analyzer is a continuous work-in-progress. There are many plannedenhancements to improve both the precision and scope of its analysis algorithmsas well as the kinds of bugs it will find. While there are fundamentallimitations to what static analysis can do, we have a long way to go beforehitting that wall.

Slower than Compilation

Operationally, using static analysis toautomatically find deep program bugs is about trading CPU time for the hardeningof code. Because of the deep analysis performed by state-of-the-art staticanalysis tools, static analysis can be much slower than compilation.

While the Clang Static Analyzer is being designed to be as fast andlight-weight as possible, please do not expect it to be as fast as compiling aprogram (even with optimizations enabled). Some of the algorithms needed to findbugs require in the worst case exponential time.

The Clang Static Analyzer runs in a reasonable amount of time by bothbounding the amount of checking work it will do as well as using cleveralgorithms to reduce the amount of work it must do to find bugs.

False Positives

Static analysis is not perfect. It can falsely flag bugs in a program wherethe code behaves correctly. Because some code checks require more analysisprecision than others, the frequency of false positives can vary widely betweendifferent checks. Our long-term goal is to have the analyzer have a low falsepositive rate for most code on all checks.

Please help us in this endeavor by reporting falsepositives. False positives cannot be addressed unless we know aboutthem.

Clang Mac Os X Install

More Checks

Update Clang Mac Os X

Static analysis is not magic; a static analyzer can only find bugs that ithas been specifically engineered to find. If there are specific kinds of bugsyou would like the Clang Static Analyzer to find, please feel free tofile feature requests or contribute your ownpatches.