Re: [Boost-users] Bug in enable_if?

From: Daniel Krügler (dsp_at_[hidden])
Date: 2008-05-06 09:11:44

Daniel Krügler wrote:
> Germán Diago Gómez wrote:
> 
> SFINAE causes a *silent* failure during an *attempt* to instantiate
> a template. The only template here is tuple_for_each_helper which
> was already instantiated, before the actual failure could take
> place.

Usage of bad language on my side: SFINAE's power occurs during the 
attempt of template argument substituition. Failing substitution
leads to failing argument deduction and this again prevents template 
successful instantiation.

Greetings from Bremen,

Daniel Krügler