To check the version of C++ on your computer, you can use the following command in a command prompt or terminal window:
g++ --version
This will display the version number of the g++ compiler, which is used to compile C++ code. If you are using a different compiler, such as clang++, you can use the following command instead:
clang++ --version
Alternatively, you can check the version of the C++ runtime library by using the following command:
ldd --version
This will display the version number of the GNU C++ Library (libstdc++) or the LLVM C++ Library (libc++), depending on which one your system is using.
If you are getting an error when trying to run the above command, it could be because the command is not recognized. This could be because the command is not in the system PATH, or because the command is not installed on your system. You can check if the command is in the PATH by running echo $PATH or set PATH and see if the location of the g++ or clang++ is in the list. If not, you can add it by editing your bash profile or bashrc file.
If the command is not installed on your system, you will need to install it. On Ubuntu and Debian, you can install g++ by running the following command:
sudo apt-get install g++
On macOS and Homebrew, you can install g++ by running the following command:
brew install gcc
On Windows, you can install g++ by downloading and installing the GCC for Windows package from the official website.
Once you have g++ or clang++ installed and in the system PATH, you should be able to run the g++ --version or clang++ --version command without any errors. If you still get an error, it could be because there is a problem with your installation or a conflict with another version of the compiler that is also installed on your system.
In this case, you may need to uninstall any other versions of the compiler and then reinstall the version that you want to use. You can also try specifying the path to the compiler executable when running the g++ --version or clang++ --version command.
Additionally, you can check the c++ version by creating a simple c++ file and then compiling it with the -std option.
echo 'int main(){return 0;}' > test.cpp
g++ -std=c++14 test.cpp
This will use C++14 standard, you can replace c++14 with c++17, c++20 and so on
If you are still having trouble, it may be helpful to consult the documentation for your specific operating system or the documentation for the compiler you are using for more information.
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Frequently Asked Questions About How To Check C++ Version
- How can I check the version of C++ on Windows?
You can check the version of C++ on Windows by using the command prompt and running the g++ --version or clang++ --version command, as well as by creating a simple c++ file and then compiling it with the -std option.
2. How can I check the version of C++ on Linux?
You can check the version of C++ on Linux by using the terminal and running the g++ --version or clang++ --version command, as well as by creating a simple c++ file and then compiling it with the -std option.
3. How can I check the version of C++ on macOS?
You can check the version of C++ on macOS by using the terminal and running the g++ --version or clang++ --version command, as well as by creating a simple c++ file and then compiling it with the -std option.
4. Is there a way to check the version of C++ without using the command line?
Yes, you can check the version of C++ without using the command line by creating a simple c++ file and then compiling it with the -std option.
5. How do I know if my C++ version is up to date?
You can check if your C++ version is up to date by comparing the version number reported by the g++ --version or clang++ --version command to the latest version available on the official website of the compiler you are using.
6. How can I update my C++ version?
You can update your C++ version by downloading and installing the latest version of the compiler from the official website. Depending on your operating system, you may also be able to update C++ via package manager.