问题
On Mac OS, if I run clang --version, I get:
Apple LLVM version 6.0 (clang-600.0.34.4) (based on LLVM 3.5svn)
Target: x86_64-apple-darwin14.0.0
Thread model: posix
Since LLVM official page suggests that the current LLVM version is 3.5, it seems that Apple clang versioning is distinct from the open-source LLVM. The output (based on LLVM 3.5svn) suggests that probably it is 3.5 on my machine as well.
Now I got here since I wanted to compile a C++14 file, using g++ -std=c++14 main.cc. This page suggests that this option should work on clang 3.5. However, it works only with -std=c++1y, which works on clang 3.4 or earlier.
So what is LLVM open-source version equivalent for Apple's version? It seems 3.5 but then why it doesn't work so?
回答1:
It is some Version of the llvm 3.5 svn branch before the official 3.5 release version.
Meaning that it probably should have all features of 3.4 plus some of the 3.5 features.
来源：https://stackoverflow.com/questions/26421690/what-is-my-version-of-llvm-clang-osx