How to break const

[Timon Gehr]

On 06/19/2012 01:29 PM, Timon Gehr wrote:
> On 06/19/2012 01:24 PM, Iain Buclaw wrote:
>> On 19 June 2012 12:04, Timon Gehr<timon.gehr at gmx.ch> wrote:
>>> On 06/19/2012 12:49 PM, Iain Buclaw wrote:
>>>> ...
>>>> pure const - similar to strongly pure, as is guaranteed not to be able
>>>> to alter its own state (as it's const), but still may have side
>>>> effects / throw an exception.
>>>>
>>>
>>> Therefore, you think 'pure const' should be allowed to have side
>>> effects?
>>>
>>
>> Throwing exceptions is a bit of a side effect...
>>
>
> It is not. Any pure function can be turned into a pure nothrow function
> by making the thrown exception an 'out' parameter and updating all
> callers accordingly.
>

Except 'main'. So throwing exceptions is a bit of a side effect after all.