#include#include int main() { std::string str = "hello world"; for (auto it = str.rbegin(); it != str.rend(); ++it) { std::cout << *it; } std::cout << std::endl; return 0; }
#includeIn this example, the std::string rbegin function is used indirectly to remove trailing whitespace from a string. The std::string find_last_not_of function is used to find the last non-whitespace character in the string by iterating through the string in reverse order using the rbegin function. The std::string erase function is then used to remove all characters from the last non-whitespace character to the end of the string. Both of these examples use the C++ standard library's string function, which is part of the C++ standard library package.#include int main() { std::string str = "hello world "; str.erase(str.find_last_not_of(" \t")+1); std::cout << str << std::endl; return 0; }