View Compilation Error

0_0_6718036_15156.cpp:46: error: ISO C++ forbids declaration of `voidclear' with no type
0_0_6718036_15156.cpp: In function `int main()':
0_0_6718036_15156.cpp:59: error: `clear' undeclared (first use this function)
0_0_6718036_15156.cpp:59: error: (Each undeclared identifier is reported only once for each function it appears in.)