1const std = @import("std");
 2const testing = std.testing;
 3
 4pub extern "c" fn printf(format: [*:0]const u8, ...) c_int;
 5
 6test "variadic function" {
 7    try testing.expect(printf("Hello, world!\n") == 14);
 8    try testing.expect(@typeInfo(@TypeOf(printf)).@"fn".is_var_args);
 9}
10
11// test
12// link_libc
13// verbose_cimport