D Compilers Disprove Fermat’s Last Theorem

[Jack Applegame]

I accidentally found an old funny article about the undefined 
behavior in C / C++:
[C Compilers Disprove Fermat’s Last 
Theorem](https://blog.regehr.org/archives/140)

After a little testing, I can confidently state that D compilers 
disprove Fermat’s Last Theorem too!

```d
// fermat.d
import std.stdio;

bool fermat() {
   const max = 1000;
   int a = 1, b = 1, c = 1;
   while(true) {
     if(((a * a * a) == ((b * b * b) + (c * c * c)))) return true;
     a++;
     if(a > max) { a=1; b++; }
     if(b > max) { b=1; c++; }
     if(c > max) { c=1; }
   }
   return false;
}

void main() {
   if(fermat()) writeln("Fermat's Last Theorem has been 
disproved.");
   else writeln("Fermat's Last Theorem has not been disproved.");
}
```
```shell
$ ldc2 -O2 --run fermat.d
Fermat's Last Theorem has been disproved.
```
Check it out on [run.dlang.io](https://run.dlang.io/is/TrO2aH)