[C/C++] out_of_range was not declared

using namespace std;

pair<string*, string*> LoginManager::getLogin(pair<unsigned int, unsigned int> id) {
 try {
 return pair<string*, string*>(&user.at(id.first), &pass.at(id.second));
 }
 catch(out_of_range) {
 throw LoginManagerExcept("out_of_range while getting login!");
 }
}

void ProxyProvider::reportUsability(unsigned int proxyId, short usable) {
 try {
 proxyVector.at(proxyId).usable = usable;
 }
 catch(out_of_range) {
 throw ProxyProviderExcept("out_of_range exception while getting proxy!");
 }
}