Re: "if not" condition check (for data validation)

[Stanislav Blinov via Digitalmars-d-learn]

On Wednesday, 17 June 2020 at 23:46:54 UTC, Denis wrote:

`if` is not a good substitute, because it works in the opposite sense, often requiring lots of `not`s. As a trivial example:

  assert( configfile.isFile && configfile.extension == ".conf" )
    -vs-
  if ( !configfile.isFile || configfile.extension != ".conf" )

A BETTER SOLUTION ???

I haven't been able to come up with another option that is more efficient yet doesn't sacrifice readability. I would welcome suggestions.

Thanks in advance.
Denis

if( ! (configfile.isFile && configfile.extension == ".conf") )

?