title: Why no manual entry for std::vector in gcc-4.9.1-4ubuntu2?
body: <p>I am trying to see the manual entry for c++ keywords like <code>std::vector,std::set,std::map, iostream,std::size()</code> e.t.c in terminal but it says, No manual entry for these commands. Even is show the same thing when i typed <code>man iostream</code>. <code>g++</code> is installed in my computer.</p>