Removed as_slice_with_nul as CString now derefs to a CStr

src/android/mod.rs

@@ -313,7 +313,7 @@ impl Window {
 
     pub fn get_proc_address(&self, addr: &str) -> *const () {
         let addr = CString::from_slice(addr.as_bytes());
-        let addr = addr.as_bytes_with_nul().as_ptr();
+        let addr = addr.as_ptr();
         unsafe {
             ffi::egl::GetProcAddress(addr) as *const ()
         }

src/win32/init.rs

@@ -171,7 +171,7 @@ fn init(title: Vec<u16>, builder: BuilderAttribs<'static>, builder_sharelists: O
             use libc;
 
             let addr = CString::from_slice(addr.as_bytes());
-            let addr = addr.as_bytes_with_nul().as_ptr();
+            let addr = addr.as_ptr();
 
             unsafe {
                 gl::wgl::GetProcAddress(addr) as *const libc::c_void

src/win32/mod.rs

@@ -192,7 +192,7 @@ impl Window {
     /// See the docs in the crate root file.
     pub fn get_proc_address(&self, addr: &str) -> *const () {
         let addr = CString::from_slice(addr.as_bytes());
-        let addr = addr.as_bytes_with_nul().as_ptr();
+        let addr = addr.as_ptr();
 
         unsafe {
             let p = gl::wgl::GetProcAddress(addr) as *const ();

src/x11/headless.rs

@@ -8,7 +8,7 @@ use super::ffi;
 fn with_c_str<F, T>(s: &str, f: F) -> T where F: FnOnce(*const libc::c_char) -> T {
     use std::ffi::CString;
     let c_str = CString::from_slice(s.as_bytes());
-    f(c_str.as_bytes_with_nul().as_ptr())    
+    f(c_str.as_ptr())    
 }
 
 pub struct HeadlessContext {

src/x11/window/mod.rs

@@ -39,7 +39,7 @@ fn ensure_thread_init() {
 fn with_c_str<F, T>(s: &str, f: F) -> T where F: FnOnce(*const libc::c_char) -> T {
     use std::ffi::CString;
     let c_str = CString::from_slice(s.as_bytes());
-    f(c_str.as_bytes_with_nul().as_ptr())
+    f(c_str.as_ptr())
 }
 
 struct XWindow {