Always false float comparisons

[Ola Fosheim Grøstad via Digitalmars-d]

On Sunday, 15 May 2016 at 21:06:22 UTC, Ola Fosheim Grøstad wrote:
>   std::cout << (f==1.30) << std::endl;  // false
>   std::cout << (c==1.30) << std::endl;  // false
>   std::cout << (i==1.30) << std::endl;  // false
>   std::cout << (1.30==(float)1.30) << std::endl;  // false

If we want equality then we should compare to the representation 
for a 32 bit float:

  std::cout << (f == 1.2999999523162841796875) << std::endl; // 
true