View Compilation Error

0_0_29917698_16336.cpp: In member function 'void Palindromic_Tree::extend(int, int)':
0_0_29917698_16336.cpp:48:39: error: cannot convert 'Palindromic_Tree::Node' to 'void*' for argument '1' to 'void* memset(void*, int, size_t)'
             memset(t[v],0,sizeof(t[v]));
                                       ^