The difference between the dates in years

[Brad Roberts]

Back when I was doing lots of software developer interviews, one of my 
frequent questions involved date math.  This wasn't because it's 
difficult from a coding standpoint, but that it's NOT a coding problem. 
The key part of the question is realization that it's a requirements 
question.  The thing that makes dates complicated is defining what the 
question actually is.

The topic _seems_ like it should be simple, but the deeper you dig the 
more you realize it's anything but simple.

On 2/10/2024 7:53 AM, Alexander Zhirov via Digitalmars-d-learn wrote:
> Is it possible to calculate the difference between dates in years using 
> regular means? Something like that
> 
> 
> ```
> writeln(Date(1999, 3, 1).diffMonths(Date(1999, 1, 1)));
> ```
> 
> At the same time, keep in mind that the month and day matter, because 
> the difference between the year, taking into account the month that has 
> not come, will be less.
> 
> My abilities are not yet enough to figure it out more elegantly.