#include #include void function1 (const std::string& message); int main (int argc, char** argv) { // Physical \t are expanded to spaces. // // 123456789 123456789 123456789 // 2 4 6 1 4 7 2 4 6 //\tThis\tis\ta\tcomment. Textual \t are not expanded. int j = 0; for (int i=0; i