const std = @import("std");

// This is also available as `std.c.printf`.
pub extern "c" fn printf(format: [*:0]const u8, ...) c_int;

pub fn main() anyerror!void {
    _ = printf("Hello, world!\n"); // OK

    const msg = "Hello, world!\n";
    const non_null_terminated_msg: [msg.len]u8 = msg.*;
    _ = printf(&non_null_terminated_msg);
}

// exe=build_fail
// link_libc