#ifndef _CALLS_H #define _CALLS_H int foo (); float bar (int); void baz (int x, float y); char *MyString (void); typedef char *tString; void printString (tString str); void printString2 (tString); int foobar (tString chars, int nchars, int *items, float x); /* type of function `MyString' */ typedef char *(*MyStringType) (int); #endif /* !_CALLS_H */