public/subjects/reverserange.en.md

reverserange

Instructions

Write a program which must:

• Allocate (with make) a slice of integers.

• Fill it with consecutive values that begins at the second argument and end at the first argument (Including the values of thoses arguments !).

• That prints the slice.

Errors should be handled.

If the number of arguments is different from 2 the program prints nothing.

Usage :

student@ubuntu:~/reverserange$ go build
student@ubuntu:~/reverserange$ ./reverserange 1 3
[3 2 1]
student@ubuntu:~/reverserange$ ./reverserange -1 2 | cat -e
[2 1 0 -1]$
student@ubuntu:~/reverserange$ ./reverserange 0 0
[0]
student@ubuntu:~/reverserange$ ./reverserange 0 -3
[-3 -2 -1 0]
student@ubuntu:~/reverserange$ ./reverserange 0 nan | cat -e
strconv.Atoi: parsing "nan": invalid syntax$
student@ubuntu:~/reverserange$