---

yaml
---
r: 161055
b: refs/heads/try
c: b5286af
h: refs/heads/master
i:
  161053: deb4df9
  161051: 364a758
  161047: 5599a57
  161039: 7b22319
  161023: ef5e5db
v: v3

Author: barosl

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: 4eb72d268f337a8f117c86a2ac1b98336cab9e9d
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: c9f6d696420107f82304b992cf623b806995fe18
-refs/heads/try: 5de56b3ca1defd9206db8364ecef5f3fd8cc5b38
+refs/heads/try: b5286af703e33bd36744fe4cd5bb24f71dbb524e
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/dist-snap: ba4081a5a8573875fed17545846f6f6902c8ba8d
 refs/tags/release-0.2: c870d2dffb391e14efb05aa27898f1f6333a9596

branches/try/src/libstd/os.rs

@@ -422,7 +422,9 @@ pub fn setenv<T: BytesContainer>(n: &str, v: T) {
             with_env_lock(|| {
                 n.with_c_str(|nbuf| {
                     v.with_c_str(|vbuf| {
-                        libc::funcs::posix01::unistd::setenv(nbuf, vbuf, 1);
+                        if libc::funcs::posix01::unistd::setenv(nbuf, vbuf, 1) != 0 {
+                            panic!(IoError::last_error());
+                        }
                     })
                 })
             })
@@ -438,7 +440,9 @@ pub fn setenv<T: BytesContainer>(n: &str, v: T) {
 
         unsafe {
             with_env_lock(|| {
-                libc::SetEnvironmentVariableW(n.as_ptr(), v.as_ptr());
+                if libc::SetEnvironmentVariableW(n.as_ptr(), v.as_ptr()) == 0 {
+                    panic!(IoError::last_error());
+                }
             })
         }
     }
@@ -453,7 +457,9 @@ pub fn unsetenv(n: &str) {
         unsafe {
             with_env_lock(|| {
                 n.with_c_str(|nbuf| {
-                    libc::funcs::posix01::unistd::unsetenv(nbuf);
+                    if libc::funcs::posix01::unistd::unsetenv(nbuf) != 0 {
+                        panic!(IoError::last_error());
+                    }
                 })
             })
         }
@@ -465,11 +471,14 @@ pub fn unsetenv(n: &str) {
         n.push(0);
         unsafe {
             with_env_lock(|| {
-                libc::SetEnvironmentVariableW(n.as_ptr(), ptr::null());
+                if libc::SetEnvironmentVariableW(n.as_ptr(), ptr::null()) == 0 {
+                    panic!(IoError::last_error());
+                }
             })
         }
     }
-    _unsetenv(n);
+
+    _unsetenv(n)
 }
 
 /// Parses input according to platform conventions for the `PATH`