C++98 – The First C++ Standard C++98
You shouldn't use C++98 any more.
If you care about speed, correctness and convenience use the latest C++ standard (as of 2019): C++17
Most valid C++98 programs will compile without any modifications with a compiler that is set to a newer standard. Only very few features of the language were deprecated or removed in newer standards.
- cppreference (language & standard library reference with examples, C++11/14/17/20; technical specifications)
- cplusplus.com (standard library reference with examples, C++11 & C++14)