View Compilation Error

0_0_34106395_4904.cpp: In function 'int main()':
0_0_34106395_4904.cpp:11:25: error: cannot convert 'std::map<int, int>' to 'void*' for argument '1' to 'void* memset(void*, int, size_t)'
   memset(mp,0,sizeof(mp));  
                         ^