The goal of this exercise is to get some confidence with the smart
pointers provide by the C++ standard library: unique_ptr and
shared_ptr.
Open the test program
dir.cpp
and complete the existing code to:
- create a smart pointer managing a DIR resource obtained with the
opendir()function call - associate a deleter to that smart pointer
- implement a function to read the names of the files in that directory
- check if the deleter is called at the right moment
- hide the creation of the smart pointer behind a factory function
You can experiment with both kinds of smart pointers and with the type of the function arguments.
The commands to build and run the exercise are:
[studentNM@esc-XY ~]$ cd esc17/hands-on/cpp
[studentNM@esc-XY cpp]$ g++ -o dir dir.cpp
[studentNM@esc-XY cpp]$ ./dir /tmp