Editing Xcode (section)

=== Composition ===
The main application of the suite is the [[integrated development environment]] (IDE), also named Xcode. The Xcode suite includes most of Apple's developer documentation, and built-in [[Interface Builder]], an application used to construct [[graphical user interface]]s.
Up to Xcode 4.1, the Xcode suite included a modified version of the [[GNU Compiler Collection]].  In Xcode 3.1 up to Xcode 4.6.3, it included the LLVM-GCC compiler, with front ends from the [[GNU Compiler Collection]] and a code generator based on [[LLVM]].<ref>{{cite web|author=Prince McLean|title=Apple's other open secret: the LLVM Compiler|url=http://appleinsider.com/articles/08/06/20/apples_other_open_secret_the_llvm_complier.html|date=June 20, 2008|access-date=April 3, 2012}}</ref> In Xcode 3.2 and later, it included the [[Clang]] C/C++/Objective-C compiler, with newly-written front ends and a code generator based on LLVM, and the Clang [[Static program analysis|static analyzer]].<ref>{{cite web|title=Xcode 3.2: {{not a typo|teh}} awesome edition|url=http://www.mcubedsw.com/blog/index.php/site/comments/xcode_3.2_teh_awesome_edition/|date=August 30, 2009|archive-url=https://web.archive.org/web/20130616065312/http://www.mcubedsw.com/blog/index.php/site/comments/xcode_3.2_teh_awesome_edition/|archive-date=June 16, 2013}}</ref>  Starting with Xcode 4.2, the Clang compiler became the default compiler,<ref name="What's New in Xcode 4.2">{{cite web|url=https://developer.apple.com/library/content/documentation/Xcode/Conceptual/WhatsNewXcode-Archive/Articles/xcode_4_0.html#//apple_ref/doc/uid/TP40016147-SW10 |title=New Features in Xcode 4: Xcode 4.2 |publisher=Apple |date=September 16, 2015 |access-date=September 15, 2016}}</ref> Starting with Xcode 5.0, Clang was the only compiler provided.

Up to Xcode 4.6.3, the Xcode suite used the [[GNU Debugger]] (GDB) as the [[Front and back ends|back-end]] for the IDE's [[debugger]]. Starting with Xcode 4.3, the [[LLDB (debugger)|LLDB debugger]] was also provided; starting with Xcode 4.5 LLDB replaced GDB as the default back-end for the IDE's debugger.<ref name="What's New in Xcode 4.5">{{cite web |title = New Features in Xcode 4: Xcode 4.5 |url = https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/WhatsNewXcode/Articles/xcode_4_0.html#//apple_ref/doc/uid/TP40016147-SW12 |publisher=Apple Inc.|date=September 16, 2015 |access-date=October 18, 2015}}</ref> Starting with Xcode 5.0, GDB was no longer supplied.<ref>{{cite web |url = https://developer.apple.com/library/content/documentation/Xcode/Conceptual/WhatsNewXcode-Archive/Articles/xcode_5_0.html#//apple_ref/doc/uid/TP40012953-SW18 |title = New Features in Xcode 5: Xcode 5.0 |date=September 16, 2015|access-date=September 15, 2016}}</ref>