foo.cpp: In function 'int main()':
foo.cpp:26:11: warning: statement has no effect [-Wunused-value]
foo.cpp:33:54: error: 'fin' was not declared in this scope
foo.cpp:36:17: error: 'fin' was not declared in this scope
foo.cpp:46:17: error: 'fin' was not declared in this scope
foo.cpp:56:11: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
foo.cpp:58:9: error: 'fout' was not declared in this scope