View Compilation Error

0_0_23748076_27434.cpp: In function 'int main()':
0_0_23748076_27434.cpp:30:25: error: cannot convert 'std::map<int, int>' to 'void*' for argument '1' to 'void* memset(void*, int, size_t)'
   memset(t, 0, sizeof(t));
                         ^