C++17_flash_introduction.tex

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\begin{document}
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \title{A flashy introduction to}
    \author{Alessandro~Sciarra}
    \date{14 April 2023}
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \MakeCoverSlide
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \begin{frame}{My main expertise for the CRC-TR\,211}{\{\,in terms of programming languages\,\}}
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            \node[PB, draw=none, right = of cpp, visible on=<2>, text width=3cm, align=center]{Today we want to explore some modern features!};
        \end{tikzpicture}
        \begin{varblock}{alert}[0.9\textwidth]{Let's have a chat}
            Clean code as common aspect orthogonal to any language!\\
            Come and torture me with all your nagging questions!
        \end{varblock}
    \end{frame}
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \begin{frame}[fragile]{Kick-off riddle: Does this code compile?}{\uncover<2->{An (ab)use of the language}}
        \begin{columns}
            \begin{column}{0.58\textwidth}
                \begin{varblock}{}[\textwidth]{}
                    \begin{Cpp}
                        #include |+<iostream>+|

                        int main() {
                            |=https://github.com/AxelKrypton=|
                            int x = 42;
                            std::cout << x << '\n';
                        }
                    \end{Cpp}
                    \begin{uncoverenv}<2->
                        \begin{Bash}[numbers=none]
                            42
                        \end{Bash}
                    \end{uncoverenv}
                \end{varblock}
            \end{column}
            \begin{column}{0.42\textwidth}
                \centering
                \includegraphics[width=\columnwidth]{WIITY}
            \end{column}
        \end{columns}
        \vspace{3mm}
        \begin{uncoverenv}<2->
            \begin{center}
                \Large
                \URL[PB]{https://godbolt.org/z/Y6Yb7M79T}{~Yes, it does!} But why?\\[5mm]
                \footnotesize
                \uncover<3>{
                    \emoji{Sunglasses}\;
                    Because \;\texttt{https:}\; is a \;\CPP|goto|\; label and the rest of the line a comment! \emoji{Sunglasses}
                }
            \end{center}
        \end{uncoverenv}
    \end{frame}
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \begin{frame}{C++ standards: A simplistic overview}
        \begin{description}[<+(1)->][C++23XX]
            \item[C++98] First standardization\quad
              \PB{C++03} Some polishing
            \item[C++11] \alert{Turning point}\\
                         \Then{
                             \small
                             Move semantics, \CPP|auto|, lambdas, \CPP|constexpr|,\\
                             smart pointers, type-traits, variadic templates, etc.
                         }

            \item[C++14] Small improvements\\
                         \Then{
                             \small
                             Better lambdas and better \CPP|constexpr|,\\
                             return type deduction, variable templates, etc.
                         }

            \item[C++17] \PS{Larger improvements $\;\to\;$ this talk!}
            \item[C++20] \alert{Turning point}\\
                         \Then{\small Concepts, modules, coroutines, ranges, etc.}
            \item[C++23] Small improvements\\
                         \Then{
                             \small
                             Explicit object parameter (deducing \CPP|this|),\\
                             \CPP|std::mdspan|, \CPP|std::expected|, \CPP|std::print|, etc.
                         }
        \end{description}
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    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \begin{frame}{Is C++ growing more and more?}{How should I be supposed to learn it?}
        \begin{uncoverenv}<2>
            \begin{center}
                \includegraphics[width=0.9\textwidth]{Toolkit}\\[1mm]
                Think of it as a toolkit, you aren't always gonna need everything!
            \end{center}
        \end{uncoverenv}
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    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \begin{frame}{Disclaimer}
        \vspace{-3mm}
        \centering
        \begin{center}
            \hyperlink{P1}{\PB{\large Part 1:} New language features}\\[3mm]
            \hyperlink{P2}{\PB{\large Part 2:} New library features}
        \end{center}
        \begin{varblock}{alert}{That's not all the folks!}
            I just took the main topics which I think it might be interesting to start with and I will either give you a taste of them or simply point you to some reference!
        \end{varblock}
        \bigskip
        \URL[PS]{https://en.cppreference.com/w/cpp/17}{Cppreference of C++17 standard}\\[3mm]
        \URL[PT]{https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/n4659.pdf}{Free draft version, 1608 pages}
    \end{frame}
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \label{P1}
    \part{New language features}
    \input{New_language_features}
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \label{P2}
    \part{New library features}
    \input{New_library_features}
    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
    \part{Your next C++ years}
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                \begin{itemize}
                    \item Consider exploring new features
                    \item Take a decision in your codebase/team
                    \item There are better and better way to write the same code!
                \end{itemize}
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                    \LARGE Thank you! Questions?
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                            Every day, work to refine the skills you have\\
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                            {\normalsize---~The pragmatic programmer~---}
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    %~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~%
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