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Substitution Failure is Error and Not An Error -- Milad Kahsari Alhadi

All you need to know:

Substitution Failure is Error and Not An Error

by Milad Kahsari Alhadi

From article:

I decided to write an article about the Substitution Failure issue when you write generic programs with c++ for those people who are looking for a clear and step by step introduction about it (without making everything complicated). In this article you will learn what will happen when you call a template function.