Testing date: Mar 14, 2024
Install gcc-13, g++-13
sudo apt update
sudo apt install software-properties-common
sudo add-apt-repository ppa:ubuntu-toolchain-r/test
sudo apt update
sudo apt install gcc-13 g++-13
Add gcc-13 to gcc's alternatives
並設定 "切換 gcc 版本時會同時切換 g++, gcov 的版本"
At the time, the latest gcc provided by this ppa is 13.1
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-13 131 --slave /usr/bin/g++ g++ /usr/bin/g++-13 --slave /usr/bin/gcov gcov /usr/bin/gcov-13
若之前沒有設定過 priority 大於 131 的 gcc 版本，則此時的 gcc 版本會自動切換至 gcc-13
Check gcc's version
At the time, the latest gcc provided by this ppa is 13.1
gcc -v
Uninstall gcc 13
sudo update-alternatives --remove gcc /usr/bin/gcc-13
sudo apt purge gcc-13 g++-13
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