35   std::ifstream inFile(filepath);  in Read()
41   std::string line;  in Read()
42   while (std::getline(inFile, line)) {  in Read()
59   std::ofstream outFile(filepath);  in Write()
67     outFile << pair.first << "=" << pair.second << std::endl;  in Write()
72 bool IniFile::HasKey(const std::string &key) const {  in HasKey()
73   return data.find(key) != std::end(data);  in HasKey()
76 std::optional<std::string> IniFile::Get(const std::string &key) const {  in Get()
78   return (citer == std::end(data)) ? std::nullopt  in Get()
79                                    : std::optional(citer->second);  in Get()
82 void IniFile::Set(const std::string &key, std::string_view value) {  in Set()
83   data[key] = std::string(value);  in Set()