---

yaml
---
r: 233716
b: refs/heads/beta
c: 14b7591
h: refs/heads/master
v: v3

Author: bors

[refs]

@@ -23,7 +23,7 @@ refs/tags/0.9: 36870b185fc5f5486636d4515f0e22677493f225
 refs/tags/0.10: ac33f2b15782272ae348dbd7b14b8257b2148b5a
 refs/tags/0.11.0: e1247cb1d0d681be034adb4b558b5a0c0d5720f9
 refs/tags/0.12.0: f0c419429ef30723ceaf6b42f9b5a2aeb5d2e2d1
-refs/heads/beta: 93616af42f4770edd681245933455ace84de5c02
+refs/heads/beta: 14b7591ee578042da43f6a9968034f4998cf291c
 refs/tags/1.0.0-alpha: e42bd6d93a1d3433c486200587f8f9e12590a4d7
 refs/heads/tmp: 370fe2786109360f7c35b8ba552b83b773dd71d6
 refs/tags/1.0.0-alpha.2: 4c705f6bc559886632d3871b04f58aab093bfa2f

branches/beta/src/libstd/sys/windows/os.rs

@@ -74,16 +74,15 @@ pub fn error_string(errnum: i32) -> String {
                                  langId,
                                  buf.as_mut_ptr(),
                                  buf.len() as DWORD,
-                                 ptr::null());
+                                 ptr::null()) as usize;
         if res == 0 {
             // Sometimes FormatMessageW can fail e.g. system doesn't like langId,
             let fm_err = errno();
             return format!("OS Error {} (FormatMessageW() returned error {})",
                            errnum, fm_err);
         }
 
-        let b = buf.iter().position(|&b| b == 0).unwrap_or(buf.len());
-        match String::from_utf16(&buf[..b]) {
+        match String::from_utf16(&buf[..res]) {
             Ok(mut msg) => {
                 // Trim trailing CRLF inserted by FormatMessageW
                 let len = msg.trim_right().len();