common: cleanup address_helper

Signed-off-by: Shinobu Kinjo <[email protected]>

src/common/address_helper.cc

@@ -1,3 +1,5 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
 /*
  * address_helper.cc
  *
@@ -15,7 +17,6 @@
 int entity_addr_from_url(entity_addr_t *addr /* out */, const char *url)
 {
 	using namespace boost;
-	using std::endl;
 
 	regex expr("(tcp|rdma)://([^:]*):([\\d]+)");
 	cmatch m;
@@ -27,8 +28,7 @@ int entity_addr_from_url(entity_addr_t *addr /* out */, const char *url)
 		memset(&hints, 0, sizeof(hints));
 		hints.ai_family = PF_UNSPEC;
 		addrinfo *res;
-		int error = getaddrinfo(host.c_str(), NULL, &hints, &res);
-		if (! error) {
+		if (!getaddrinfo(host.c_str(), nullptr, &hints, &res)) {
 			addr->set_sockaddr((sockaddr*)res->ai_addr);
 			addr->set_port(std::atoi(port.c_str()));
 			freeaddrinfo(res);