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Possible Duplicate:
Cost of using std::map with std::string keys vs int keys?
如果我有这两段代码:
1#:
map<unsigned int, unsigned short> ConnectedIPs;
PLUGIN_EXPORT bool PLUGIN_CALL OnPlayerConnect(int playerid)
{
PlayerLoopList.push_back(playerid);
char szIP[32];
GetPlayerIp(playerid,szIP);
unsigned short explodeIP[4];
sscanf(szIP, " %d[^.].%d[^.].%d[^.].%d", &explodeIP[0], &explodeIP[1], &explodeIP[2], &explodeIP[3]);
g_PlayerIP[playerid] = (explodeIP[0] + (explodeIP[1] << 8) + (explodeIP[2] << 16) + (explodeIP[3] << 24));
ConnectedIPs[g_PlayerIP[playerid]] += 1;
if(ConnectedIPs[g_PlayerIP[playerid]] >= g_max_ip)
{
Report(playerid,CHECK_IPFLOOD);
}
return true;
}
2#:
map<char*, unsigned short> ConnectedIPs;//edited from char to char*
PLUGIN_EXPORT bool PLUGIN_CALL OnPlayerConnect(int playerid)
{
PlayerLoopList.push_back(playerid);
char szIP[32];
GetPlayerIp(playerid,szIP);
ConnectedIPs[szIP] += 1;
if(ConnectedIPs[szIP] >= g_max_ip)
{
Report(playerid,CHECK_IPFLOOD);
}
return true;
}
2#会更快吗？ 此代码用于计算一个 ip 的连接玩家数量。我认为我做对了，还是错了？