#include extern int foo(void); extern int bar(void); extern int foobar(void); extern int barbar(void); extern int baz(void); extern int tree_prefix_foo(void); extern int tree_prefix_bar(void); extern int tree_bar(void); extern int tree_foobar(void); extern int tree_baz(void); int main() { printf("foo: %d bar: %d foobar: %d barbar: %d baz: %d\n", foo(), bar(), foobar(), barbar(), baz()); printf("tree_prefix_foo: %d tree_prefix_bar: %d tree_bar: %d tree_foobar: " "%d tree_baz: %d\n", tree_prefix_foo(), tree_prefix_bar(), tree_bar(), tree_foobar(), tree_baz()); return 0; }