Hàm seekg() bị lỗi

[Luan_Truong (Luân Trường)]

struct Sinhvien{
   int maso; 
   char ho[31];
   char ten[31];
};
void Doc_du_lieu_1_SV(ifstream &FileIn,Sinhvien &sv){
	FileIn>>sv.maso ; 
	FileIn.seekg(1 , 1) ; // 
	getline(FileIn,sv.ho,',') ; 
	FileIn.seekg(1,1) ; 
	getline(FileIn,sv.ten,',') ;
}

[rogp10]

https://en.cppreference.com/w/cpp/io/basic_istream/seekg