Why exceptions for error handling is so important

[Russel Winder via Digitalmars-d]

On Mon, 2015-01-12 at 10:43 -0800, H. S. Teoh via Digitalmars-d wrote:
> 
[…]
> And what exactly should operator[] return if a key wasn't found?
> 
[…]

Go has an interesting solution, key lookup in a map return a pair 
(result, ok), if lookup succeeded then result is the associated value, 
if ok is false then result is undefined. I quite like this.

-- 
Russel.
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