Re: From the D Blog: Crafting Self-Evident Code in D

[Salih Dincer via Digitalmars-d-announce]

On Saturday, 7 October 2023 at 12:37:37 UTC, sighoya wrote:

I disagree however in all binary types should be just boolean.

I prefer machineState=State.On or State.Off than isMachineOn=true or false.

This was finished possible:


```d
import std;

enum State : bool
{
  Off, On
}

void main()
{
  State machineState;
  "The machine ".write;

  if(machineState == State.On) {
    "may be ".write;
  }
  machineState = State.On;
  
  if(machineState == State.On) {
    "definitely ".write; 
  }
  "runnning!".writeln;

// BONUS: TriState
   int engineHP = -500;
   "The engine ".write;
  
   final switch(engineHP.sgn)
   {
     case TriState.Off: "was off!".writeln; break;
     case TriState.Start: "was start!".writeln; break;
     case TriState.On: "running!".writeln; break;
   }
}

enum TriState
{
    Off = -1, Start, On
}
```
SDB79