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What are the most important and known issues and limitations?

General

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System requirements
  • CLion only runs on 64bit systems
CMake
  • CMakeCache changes should be applied via Reload CMake project button in the tool window.

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  • CLion supports only GNU toolchain, that means only GCC and Clang compilers on Linux and OS X, and MinGW (or MinGW-W64) and Cygwin x64 toolchains on Windows. Microsoft Visual C++ compiler is supported in the experimental mode since CLion 2017.1.
    Note: If you are using Visual Studio for C++ development (and Visual C++ Compiler), try our ReSharper for C++.
C++
CLion supports the following C and C++ standards: C99, C11 partially, C++03, C++11, C++14

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(all except constexpr), C++17 (initial support).
List of supported C++ language features can be found in our webhelp.

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