C++ 2017 May 2026

template<typename... Args> auto sum(Args... args) return (args + ...); // right fold

Here’s a detailed technical text covering (officially ISO/IEC 14882:2017), often referred to as C++2017. C++17: A Comprehensive Overview 1. Introduction C++17 is the fifth major revision of the C++ programming language standard, formally published by ISO in December 2017. It succeeded C++14 and preceded C++20. While not as groundbreaking as C++11, C++17 delivered a substantial set of practical features aimed at improving productivity, code clarity, performance, and library usability. It removed several outdated features and continued the evolution toward a safer, more expressive language. c++ 2017

if (auto it = m.find(key); it != m.end()) // use it here // it goes out of scope Permits defining variables in header files without violating the One Definition Rule (ODR). Essential for header-only libraries. template&lt;typename

namespace fs = std::filesystem; for (auto& p : fs::directory_iterator(".")) std::cout << p.path() << '\n'; C++17: A Comprehensive Overview 1