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/*
* @(#) example.c 1.2 91/09/22 21:21:45
*
* Examples of things that can be done with the unproto package
*/
/*
* New-style argument list with structured argument, one field being pointer
* to function returning pointer to function with function-pointer argument
*/
x(struct {
struct {
int (*(*foo) (int (*arg1) (double))) (float arg2);
} foo;
} baz) {
return (0);
}
/*
* Old-style argument list with new-style argument type, declaration
* embedded within block. Plus a couple assignments with function calls that
* look like casts.
*/
foo(bar)
int (*(*bar) (float)) (int);
{
int (*baz) (int) = (int (*) (int)) 0,
y = (y * (*baz) (y)),
*(*z) (int) = (int *(*) (int)) 0;
struct { int (*foo)(int); } *(*s)(int) =
(struct { int (*foo)(int); } *(*)(int)) 0;
{
y = (y * (*baz) (y));
}
{
z = (int *(*) (int)) 0;
}
{
s = (struct { int (*foo)(int); } *(*)(int)) 0;
}
return (0);
}
/* Multiple declarations in one statement */
test1()
{
int foo2,*(*(*bar)(int))(float),*baz(double);
}
/* Discriminate declarations from executable statements */
test2(char *y)
{
int foo = 5,atoi(char *);
foo = 5,atoi(y);
}
/* Declarations without explicit type */
test3,test4(int);
test5(int y)
{
{
test3;
}
{
test4(y);
}
}
test6[1],test7(int);
test7(int x)
{
{
test6[1];
}
{
test7(x);
}
}
/* Checking a complicated cast */
struct {
struct {
int (*f)(int), o;
} bar;
} (*baz2)(int) = (struct { struct { int (*f)(int), o; } bar; } (*)(int)) 0;
/* Distinguish things with the same shape but with different meaning */
test8(x)
{
{
struct {
int foo;
} bar(int);
}
{
do {
int foo;
} while (x);
}
}
/* Do not think foo(*bar) is a function pointer declaration */
test9(char *bar)
{
foo(*bar);
}
/* another couple of special-cased words. */
test10(int x)
{
{
int test10(int);
do test10(x);
while (x);
}
{
return test10(x);
}
}
test11(int *x)
{
while (*x)
(putchar(*x++));
}
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