1extern fn printf([*:0]const u8, ...) c_int;
 2
 3pub export fn entry() void {
 4    _ = printf("%d %d %d %d\n", 1, 2, 3, 4);
 5}
 6
 7pub export fn entry1() void {
 8    var arr: [2]u8 = undefined;
 9    _ = printf("%d\n", arr);
10    _ = &arr;
11}
12
13pub export fn entry2() void {
14    _ = printf("%d\n", @as(u48, 2));
15}
16
17pub export fn entry3() void {
18    _ = printf("%d\n", {});
19}
20
21// error
22//
23// :4:33: error: integer and float literals passed to variadic function must be casted to a fixed-size number type
24// :9:24: error: arrays must be passed by reference to variadic function
25// :14:24: error: cannot pass 'u48' to variadic function
26// :14:24: note: only integers with 0 or power of two bits are extern compatible
27// :18:24: error: cannot pass 'void' to variadic function
28// :18:24: note: 'void' is a zero bit type; for C 'void' use 'anyopaque'