Archive for February, 2019


Tuesday, February 5th, 2019

Substitution failure is not an error is bad programming, in my opinion.

It seems to me that if you are making special cases for different classes in a template, then you’ve clearly missed the point of templates and are using them incorrectly. Templates are supposed to apply a concept or algorithm uniformly to a class. A vector, or a hash, work on objects of any type, uniformly.

If you’re SFINAEing, then what you really want to be doing is make a base class and derive other classes from it, each having traits specific to that class. That’s the very definition of what object oriented programming is for.

By taking advantage of a hack to cover a language flaw that serves no purpose but to supply entries for ‘the most heinous error message to come out of a c++ compiler’ contest, you’re being cool, but you’re not being a good programmer.