77         const char* envValue = getenv(key.c_str());  in getEnv()  local
78         return envValue != nullptr ? std::string(envValue) : std::string();  in getEnv()
95         std::string envValue = getEnv(key);  in getFlag()  local
96         if (envValue.empty()) {  in getFlag()
104         if (!parse(envValue, value)) {  in getFlag()
105             std::cerr << "Cannot parse " << envValue << "." << std::endl;  in getFlag()
122         T envValue;  in getFlagIfUnset()  local
125             if (!parse(envStrValue, &envValue)) {  in getFlagIfUnset()
126                 std::cerr << "Cannot parse " << envValue << "." << std::endl;  in getFlagIfUnset()
133             if (hasEnvValue && (*out != envValue)) {  in getFlagIfUnset()
135                           << " (which is " << envValue << ")." << std::endl;  in getFlagIfUnset()
141             *out = envValue;  in getFlagIfUnset()
149         std::string envValue = getEnv(key);  in getIntegerFlag()  local
150         if (envValue.empty()) {  in getIntegerFlag()
154         if (!base::ParseUint(envValue, &value)) {  in getIntegerFlag()