View Compilation Error

0_0_6532870_14190.cpp: In function `int main()':
0_0_6532870_14190.cpp:13: error: `va' undeclared (first use this function)
0_0_6532870_14190.cpp:13: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_6532870_14190.cpp:13: error: `memset' undeclared (first use this function)
0_0_6532870_14190.cpp:14: error: `vm' undeclared (first use this function)
0_0_6532870_14190.cpp:15: error: `p' undeclared (first use this function)