> The best C++ standard spectacular failure example is Concepts. 15 years and thousands of man years invested in designing Concepts, a feature whose main goal is to improve template error messages. Turns out, concepts actually make template error messages worse. They aren't completely useless, but still... who would have thought, right? Well, turns out that every standard that was standardizing standard practice would have... known this... you know... from actual experience...
I generally agree with your posts but concepts have definitely improved my code, I would never in a lifetime go back to SFINAE trickeries.
I generally agree with your posts but concepts have definitely improved my code, I would never in a lifetime go back to SFINAE trickeries.