I fixed this by making all the float, strings. Everywhere there is something like

• float mServerVersion;

• std::string mServerVersion;

• mServerVersion(-1.0)

• mServerVersion("0")

-SpeedTest::SpeedTest(float minServerVersion) :
+SpeedTest::SpeedTest(std::string minServerVersion) :

+bool version_ok (std::string client, std::string min_ver) {

• unsigned maj = 0, min = 0, bug = 0;
• unsigned maj2 = 0, min2 = 0, bug2 = 0;
• sscanf(client.c_str(), "%u.%u.%u", &maj, &min, &bug);
• sscanf(min_ver.c_str(), "%u.%u.%u", &maj2, &min2, &bug2);
• if (maj < maj2) return false;
• if (maj > maj2) return true;
• if (min < min2) return false;
• if (min > min2) return true;
• if (bug < bug2) return false;
• if (bug > bug2) return true;
• return true;
  +}

• if (client.connect() && client.version() >= mMinSupportedServer) {

• if (client.connect() && (version_ok (client.version() , mMinSupportedServer))) {

•    if (client.version() < mMinSupportedServer) {
  

•    if (!version_ok (client.version() , mMinSupportedServer)) {