#include#include int main() { const char* cstr = "hello world"; llvm::StringRef str_ref(cstr); // print the first character std::cout << str_ref.front() << '\n'; // print the last character std::cout << str_ref.back() << '\n'; // iterate over the characters for (char c : str_ref) { std::cout << c; } std::cout << '\n'; return 0; }
h d hello worldFrom these examples, it can be deduced that the package/library being used is LLVM, specifically the ADT (Abstract Data Type) module.