some_func
int some_func();
d = some_func();
*p = some_func();
int some_func(void);
ab = some_func();
p = some_func();
p2 = some_func();
char *some_func(void);
c = some_func();
int some_func();
some_func(&seven);
if (some_func()) {
a = some_func();
b = some_func();
c = some_func();
d = some_func();