RE: [boost] environment variable access

From: Jason Stewart (res0054p_at_[hidden])
Date: 2002-01-23 16:46:10

I don't think existence testing is a problem. Many times when you get the 
value of a variable you want to use a default if it does not exists. 
Besides, is it that problematic to check first if you don't want a default? 
In my original example:

        string location = env::get("LOCATION", "c:\tmp");

becomes
        string location;
        if (!env::get("LOCATION", location))
        {
                location = "c:\tmp";
        }

I think the first example is clearer to read with the small cost being a 
separate, explicit check for existence.

I think orthogonalality is good and prefer using separate functions for 
conversion.

Jason