Re: How to sort a 2D array by column

[Chris Cain via Digitalmars-d-learn]

On Saturday, 7 June 2014 at 19:14:01 UTC, Chris Cain wrote:
This is my attemot to create a compare object. But I don't 
know how to use it together with .sort member function


Don't use the .sort property. Use std.algorithm.sort, which has 
a "less" predicate (that should return a bool).

http://dlang.org/phobos/std_algorithm.html#sort

Also note that the examples use a string to define the predicate, 
but it accepts functions as well. Such as:

    bool myCompareFunc(AType lhs, AType rhs)
    {
        return lhs.blah < rhs.blah;
    }

    //...
    AType[] arr;
    //...
    arr.sort!myCompareFunc();