Ranges

[Salih Dincer]

On Thursday, 4 August 2022 at 13:08:21 UTC, pascal111 wrote:
> ```D
>     import std.stdio;
>     import std.string;
>
>     struct Student {
>        string name;
>        int number;
>
>        string toString() const {
>           return format("%s(%s)", name, number);
>        }
>     }
>
>     struct School {
>        Student[] students;
>     }
>     struct StudentRange {
>        Student[] students;
>
>        this(School school) {
>           this.students = school.students;
>        }
>        @property bool empty() const {
>           return students.length == 0;
>        }
>        @property ref Student front() {
>           return students[0];
>        }
>        void popFront() {
>           students = students[1 .. $];
>        }
>     }
>
>     void main() {
>        auto school = School([ Student("Raj", 1), 
> Student("John", 2), Student("Ram", 3)]);
>        auto range = StudentRange(school);
>        writeln(range);
>
>        writeln(school.students.length);
>
>        writeln(range.front);
>
>        range.popFront;
>
>        writeln(range.empty);
>        writeln(range);
>     }
> ```

😀