View Compilation Error

0_0_28805833_21323.cpp: In function 'ksmjz MatrixPow(ksmjz, int)':
0_0_28805833_21323.cpp:31:31: error: cannot convert 'ksmjz' to 'void*' for argument '1' to 'void* memset(void*, int, size_t)'
     memset(sum,0,sizeof(sum.m))  
                               ^
0_0_28805833_21323.cpp:32:17: error: 'i' was not declared in this scope
     for(int i=1;i<=n+2;i++)
                 ^