tutorial: lesson 1 InputNg has exercises

\ptexPaste{InputNg_main1}

\ptexPaste{InputNg_Recap}

\subsection*{Exercises}

We'll use stars * next to the exercise to mark the most difficult ones.

The ones marked with M may lead to mainstream inclusion.

1 In the tutorial, we printed the value of the scalar. Do the same

for the vector and the string.

2 Read a matrix from the input file. Use PsimagLite::Matrix for

the type, and use $mymatrix=[[1,2],[3,4]];$ in the input file.

Print the matrix observing that PsimagLite::Matrix has operator \verb!<<!

3* (M) The need for Writeable and Readable implies the need for

two statements for actually reading the file.

This may seem cumbersome. Therefore, create a new class, say,

MyInputNg, with a constructor that takes the filename and with

client code

\begin{lstlisting}

MyInput io(filename);

\end{lstlisting}

where now the object io can be used as Readable.

Discuss if it's better to use inheritance or not.

Discuss the private members of your class, their memory usage, and lifetime.

4 Check the tutorial for memory leaks.

\end{document}

\subsection*{Recap}

In this lesson we have learned, blah blah.

\subsection*{Exercises}

*/