On 03/11/14 13:14, Dimitry Sibiryakov wrote: > 11.03.2014 6:38, Alex wrote: >> On 03/09/2014 03:43 PM, Dimitry Sibiryakov wrote: >>> What's the purpose for IMessageMetadata::getLength() method to be >>> declared as const? >>> Such declaration makes impossible to calculate length on demand and cache >>> the result for >>> future calls. Implementations have to either calculate it on every call, or >>> do that in >>> other places which makes implementation unstable or inefficient. >> For me it looks like historical artifact from some old implementation. > "mutable" attribute is a funny workaround for self-made problem. > I know, but in this case getLength() declaration should better be corrected. We nowhere use const interfaces.
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