diff --git a/doc/tutorial-ffi.md b/doc/tutorial-ffi.md index 895aaf224364e..8324f752c1d3e 100644 --- a/doc/tutorial-ffi.md +++ b/doc/tutorial-ffi.md @@ -22,7 +22,7 @@ extern mod crypto { fn as_hex(data: ~[u8]) -> ~str { let mut acc = ~""; - for data.each |byte| { acc += fmt!("%02x", byte as uint); } + for data.each |&byte| { acc += fmt!("%02x", byte as uint); } return acc; } @@ -33,8 +33,8 @@ fn sha1(data: ~str) -> ~str unsafe { return as_hex(vec::from_buf(hash, 20)); } -fn main(args: ~[~str]) { - io::println(sha1(args[1])); +fn main() { + io::println(sha1(core::os::args()[1])); } ~~~~