Coming from other languages with generics, it took a while for me to internalize SFINAE when writing templated code.
Luckily, with C++17's if-constexpr and C++20's concepts, SFINAE has become mostly obsolete for new C++ code (unless you have/want to support older C++ standards).
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Luckily, with C++17's if-constexpr and C++20's concepts, SFINAE has become mostly obsolete for new C++ code (unless you have/want to support older C++ standards).