On Tuesday, 18 December 2018 at 12:07:37 UTC, Andrey wrote:
Hi,
Have array:
enum array = ["qwerty", "a", "baz"];
Need to reverse and sort array elements to get this result:
[a, ytrewq, zab]
Did this:
enum result = array.map!(value => value.retro()).sort();
Got:
Error: template std.algorithm.sorting.sort cannot deduce function from argument types !()(MapResult!(__lambda1, string[])), candidates are:
/usr/include/dmd/phobos/std/algorithm/sorting.d(1849,1): std.algorithm.sorting.sort(alias less = "a < b", SwapStrategy ss = SwapStrategy.unstable, Range)(Range r) if ((ss == SwapStrategy.unstable && (hasSwappableElements!Range || hasAssignableElements!Range) || ss != SwapStrategy.unstable && hasAssignableElements!Range) && isRandomAccessRange!Range && hasSlicing!Range && hasLength!Range)

How to solve the problem?

Did you try this ?

  import std.stdio;
  import std.algorithm;
  import std.range;
  import std.conv;

  void main()
  {
        enum input = ["qwerty", "a", "baz"];
enum output = input.map!(value => value.retro().to!string()).array.sort();
        
        writeln(input);
        writeln(output);
  }

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