Program logic bugs vs input/environmental errors

[Steven Schveighoffer via Digitalmars-d]

On 10/4/14 4:47 AM, Walter Bright wrote:
> On 9/29/2014 8:13 AM, Steven Schveighoffer wrote:
>> I can think of cases where it's programmer error, and cases where it's
>> user error.
>
> More carefully design the interfaces if programmer error and input error
> are conflated.
>

You mean more carefully design File's ctor? How so?

-Steve