c++: how can i get a parcial string?

[Cambalinho]

see these sample:

  string text="helloworld";
  if(text=="world")
      cout << "founded";

the C++ have 1 function for i find a parcial word on a string?
Administrator: thank you so much for add the code tags... thank you

[Repeater]

if (text.find("world") != std::string::npos)
{
  cout << "founded";
}

[Cambalinho]

correct me 1 thing: why compare with string npos?

[Repeater]

Because the function string::find returns the value std::string::npos if the search term is not found.

[Cambalinho]

thank you so much for all. thank you