Basic C++

IO (input / output)
Buffered / unbuffered,  cout  /  cerr
Manipulators
cout  <<  setw(10)  <<  42;
Strings
All obvious operators work
s[0],  +,  +=,  ==,  <,  etc
Convert from C-style
char  *c  =  "hello";    string  s(c);
Convert to C-style
s.c_str()