debugger compiler$ gdb ./a.out GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 [...] Reading symbols from ./a.out... (gdb-ChatDBG) run$ gdb ./a.out GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 [...] Reading symbols /nptl/pthread_kill.c:44 44 ./nptl/pthread_kill.c: No such file or directory.$ gdb ./a.out GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 [...] Reading symbols from ./a.out... (gdb-ChatDBG) run Starting program: /nptl/pthread_kill.c: No such file or directory. (gdb-ChatDBG) why$ gdb ./a.out GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 [...] Reading symbols from ./a.out... (gdb-ChatDBG) run (gdb-ChatDBG) why

upgrading kernel modules. If DKMS is not already installed, execute one of the following: • On an Ubuntu system: sudo apt-get install dkms • On a Fedora system: yum install dkms • On a Mandriva or Mageia kernel you are using. • With Debian and Ubuntu releases, you must install the right version of the linux-headers and if it exists the linux-kbuild package. Current Ubuntu releases should have the right packages packages installed by default. • In even older Debian and Ubuntu releases, you must install the right version of the kernel-headers package. • On Fedora and Redhat systems, the package is kernel-devel. •

upgrading kernel modules. If DKMS is not already installed, execute one of the following: • On an Ubuntu system: sudo apt-get install dkms • On a Fedora system: yum install dkms • On a Mandriva or Mageia kernel you are using. • With Debian and Ubuntu releases, you must install the right version of the linux-headers and if it exists the linux-kbuild package. Current Ubuntu releases should have the right packages packages installed by default. • In even older Debian and Ubuntu releases, you must install the right version of the kernel-headers package. • On Fedora and Redhat systems, the package is kernel-devel. •

Known limitations, page 199 also. • Linux hosts (32-bit and 64-bit3). Among others, this includes: – Ubuntu 6.06 (“Dapper Drake”), 6.10 (“Edgy Eft”), 7.04 (“Feisty Fawn”), 7.10 (“Gutsy Gibbon”), 8.04 (“Hardy upgrading kernel modules. If DKMS is not already installed, execute one of the following: • On an Ubuntu system: sudo apt-get install dkms • On a Fedora system: yum install dkms • On a Mandriva or Mageia kernel you are using. • With Debian and Ubuntu releases, you must install the right version of the linux-headers and if it exists the linux-kbuild package. Current Ubuntu releases should have the right packages

sum); } }Copyright © 2020 Bob Steagall K E W B C O M P U T I N G Testing Methodology – Platforms • Ubuntu 18.04 on Cascade Lake • GCC 10.2, all code compiled with -O3 –mavx512 -march=skylake • Clang 10 CppCon 2018Copyright © 2020 Bob Steagall K E W B C O M P U T I N G Testing Methodology – Platforms • Ubuntu 18.04 Core i9 • GCC 9.3, all code compiled with -O3 -mavx2 -march=skylake • Clang 10.0.1, all code agree with iconv() CppCon 2018 125Copyright © 2020 Bob Steagall K E W B C O M P U T I N G GCC 9.3 – Ubuntu 18.04 – Core i9 – UTF-32 126 CppCon 2020 - Adventures in SIMD Thinking 3104 2941 3044 2861

Microsoft.VisualStudioCode –silent ; code --install-extension ms-vscode.cpptools-extension-pack Ubuntu: sudo snap install code --classic macOS: use the downloaded installerPopular C++ editor/IDEs vim editor/IDEs vim and Neovim 0 5 10 15 20 25 30 35 40 Windows: winget install Neovim.Neovim Ubuntu: sudo apt-get install neovim macOS: brew install neovim or sudo port install neovimPopular C++ editors 30 35 40 All Platforms: Use the JetBrains Toolbox App Windows: Use the downloaded installer Ubuntu: sudo snap install clion --classic macOS: Use the downloaded installerTools for your platform Build

Known limitations, page 283 also. • Linux hosts (32-bit and 64-bit3). Among others, this includes: – Ubuntu 14.04 LTS, 16.04 LTS, and 17.04 – Debian GNU/Linux 7 (“Wheezy”), 8 (“Jessie”) and 9 (“Stretch”) – kernel type. If you have then you will need to determine yourself what to set up. • With Debian and Ubuntu-based distributions, you must install the right version of the linux-headers, usually whichever of linux-headers-i686-pae best matches the kernel version name; and if it exists the linux-kbuild package. Basic Ubuntu releases should have the right packages installed by default. • On Fedora, Redhat, Oracle Linux and

Known limitations, page 281 also. • Linux hosts (32-bit and 64-bit3). Among others, this includes: – Ubuntu 14.04 LTS, 16.04 LTS, and 17.04 – Debian GNU/Linux 7 (“Wheezy”), 8 (“Jessie”) and 9 (“Stretch”) – kernel type. If you have then you will need to determine yourself what to set up. • With Debian and Ubuntu-based distributions, you must install the right version of the linux-headers, usually whichever of linux-headers-i686-pae best matches the kernel version name; and if it exists the linux-kbuild package. Basic Ubuntu releases should have the right packages installed by default. • On Fedora, Redhat, Oracle Linux and

the client too. 1.4 All platforms, all build systems and compilers Conan works on Windows, Linux (Ubuntu, Debian, RedHat, ArchLinux, Raspbian), OSX, FreeBSD, and SunOS, and, as it is portable, it might machine running Ubuntu Linux and then run it on another platform like a Raspberry Pi? Conan can model that case using two different profiles, one for the machine that builds the application (Ubuntu Linux) and compressor application, this profile would be the one used by the CMake tool that will compile it on the Ubuntu Linux machine. Note that when you just use one argument for the profile --profile is equivalent

the client too. 1.4 All platforms, all build systems and compilers Conan works on Windows, Linux (Ubuntu, Debian, RedHat, ArchLinux, Raspbian), OSX, FreeBSD, and SunOS, and, as it is portable, it might machine running Ubuntu Linux and then run it on another platform like a Raspberry Pi? Conan can model that case using two different profiles, one for the machine that builds the application (Ubuntu Linux) and compressor application, this profile would be the one used by the CMake tool that will compile it on the Ubuntu Linux machine. Note that when you just use one argument for the profile --profile is equivalent