Darwin & POSIX & Clang

Darwin:

Darwin was an open source operating system released by Apple Computer in 2000. Darwin is the operating system component of the MACOSX operating environment.

Posix:

POSIX represents a portable operating system interface (Portable Operating system Interface, abbreviated as POSIX), and the POSIX standard defines the interface standards that the operating system should provide for applications. is the generic term for the series of API standards that IEEE defines for software to run on a variety of UNIX operating systems, formally referred to as IEEE 1003, and the international standard name is ISO/IEC 9945.

Clang:

Clang is an c/c++/objective c/objective C + + compiler written in C + +, based on LLVM, published under LLVM BSD license, and its goal (one) is to go beyond GCC.

Clang:a C language family frontend for LLVM

Website: http://clang.llvm.org/index.html

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Darwin & POSIX & Clang