C++ 2017 Direct

void print(std::string_view sv) std::cout << sv;

print("temporary"); // no allocation Most STL algorithms gained execution policy overloads: seq , par , par_unseq . c++ 2017

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 It removed several outdated features and continued the evolution toward a safer, more expressive language. Introduction C++17 is the fifth major revision of

std::map<int, std::string> src1,"a"; std::map<int, std::string> dst; dst.insert(src.extract(1)); Distinct enum class for raw memory representation (no arithmetic). It removed several outdated features and continued the

std::map<int, std::string> m = 1, "a"; for (const auto& [key, val] : m) // key = 1, val = "a" std::cout << key << ": " << val << '\n';

// in a header inline int global_counter = 0; Mandates copy elision for prvalues, making certain moves/constructors unnecessary even conceptually.

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.