View Compilation Error

0_0_23710595_282.cpp: In function 'int main()':
0_0_23710595_282.cpp:15:33: error: ISO C++ forbids applying 'sizeof' to an expression of function type [-fpermissive]
        memset(next,0,sizeof(next));
                                 ^
0_0_23710595_282.cpp:15:34: error: cannot resolve overloaded function 'next' based on conversion to type 'void*'
        memset(next,0,sizeof(next));
                                  ^