/in/foo.cc: In member function 'void Vector3::init(char*, int)':
/in/foo.cc:14:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for( i=0;i<strlen(temp);i++)
            ~^~~~~~~~~~~~~
/in/foo.cc: In member function 'void Vector3::operator=(Vector3&)':
/in/foo.cc:30:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for( i=0;i<strlen(v2.x);i++)
            ~^~~~~~~~~~~~~