/in/foo.cc: In member function 'BigInt& BigInt::operator=(BigInt&)':
/in/foo.cc:31:3: warning: no return statement in function returning non-void [-Wreturn-type]
   }
   ^
/in/foo.cc: In member function 'void BigInt::MyPow()':
/in/foo.cc:50:4: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
    for(int j=0; j<Max ; j++)
    ^~~
/in/foo.cc:52:5: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
     for(int pj=0; pj<Max; pj++){
     ^~~