Re: Program logic bugs vs input/environmental errors

[Steven Schveighoffer via Digitalmars-d]

On 9/27/14 7:15 PM, Walter Bright wrote:

When I say "They are NOT for debugging programs", I mean they are NOT
for debugging programs.

Library code often cannot make that choice. The issue with exceptions 
vs. errors is that often you don't know where the input comes from.

e.g.:

auto f = File(someInternalStringThatIsCorrupted) -> error
auto f = File(argv[1]) -> exception

How does File know what it's target file name came from?

-Steve