Ferhat Geçdoğan

I am currently working on translating the book and the source code is available on [this repository](https://github.com/ferhatgec/kitap). Most of the chapters are translated and published on [ferhatgec.github.io/kitap/](https://ferhatgec.github.io/kitap/).

Seems replacing this: ```cpp template requires ( !convertible_to && convertible_to) void span(_ReadOnlyRange&& _Range) noexcept { this->span( _STD span{const_cast(_RANGES data(_Range)), static_cast(_RANGES size(_Range))}); } template requires ( !convertible_to && convertible_to) explicit basic_ispanstream(_ReadOnlyRange&&...