c++ - where is class std::out_of_range fully defined? -

i searching under /usr/include/c++ on ubuntu linux. in /usr/include/c++/stdexcept, found this:

class out_of_range : public logic_error { public:     explicit out_of_range(const string& __arg);  }; 

but can't find anywhere definition of out_of_range() constructors.

also when stl throws out_of_range() exception, uses (example taken stl_vector.h):

__throw_out_of_range(__n("vector::_m_range_check")); 

and, thing can find __throw_out_of_range() is:

void __throw_out_of_range(const char*) __attribute__((__noreturn__)); 

can kindly point me definitions of out_of_range class?

they're defined in libstdc++. can source code on gcc website. on ubuntu distros, have library installed (libstdc++.so), not source code. stuff found declarations, not definitions.