Re: float price; if (price == float.nan) { // initialized } else { // uninitialized } ... valid ?

[someone via Digitalmars-d-learn]

On Wednesday, 30 June 2021 at 03:51:47 UTC, Mathias LANG wrote:
or use `std.math.isNaN`.

```d
import std.math : isNaN;

float lnumStockPricePreceding;

foreach (float lnumStockPrice; ludtStockPriceEvolution.range)

   if (! isNan(lnumStockPricePreceding)) {

      /// do something

   }

   lnumStockPricePreceding = lnumStockPrice;

}
```

... is far from pretty but it works as expected, thanks for your 
tip !