[Dev-C++] using classes in seprate files

[faramarz y. <far...@ho...>]

hi anybody
i have a problem to using seprate c++ classes.
i have write a class "Search.cpp",it has two function in it.
it has not any main function.
now i want to write another file for example test_search
i want to instantiate an object from Search class in it and use it's 
function there.
i wrote:
             Search s;
             s.linear();
but i can not use class Search in it because compiler does not know it.
what should i do?
in dev_c++ or borland c++?
thank u in advanced

_________________________________________________________________
STOP MORE SPAM with the new MSN 8 and get 2 months FREE* 
http://join.msn.com/?page=features/junkmail