#include "phonenumbers/base/synchronization/lock.h"
#include "phonenumbers/regexp_adapter.h"
-using std::make_pair;
using std::string;
namespace i18n {
if (it != cache_impl_->end()) return *it->second;
const RegExp* regexp = regexp_factory_.CreateRegExp(pattern);
- cache_impl_->insert(make_pair(pattern, regexp));
+ cache_impl_->insert(std::make_pair(pattern, regexp));
return *regexp;
}