Changed 0 as * to ::std::ptr::null.

Author: botev

src/device/mod.rs

@@ -72,7 +72,7 @@ pub fn info() {
 pub fn info_string(verbose: bool) -> String {
     let result: String;
     unsafe {
-        let mut tmp: *mut c_char = 0 as *mut c_char;
+        let mut tmp: *mut c_char = ::std::ptr::null_mut();
         let err_val = af_info_string(&mut tmp, verbose);
         HANDLE_ERROR(AfError::from(err_val));
         result = CStr::from_ptr(tmp).to_string_lossy().into_owned();

src/util.rs

@@ -32,7 +32,7 @@ pub fn get_size(value: DType) -> usize {
 
 /// Allocates space using Arrayfire allocator in host memory
 pub fn alloc_host<T>(elements: usize, _type: DType) -> *const T {
-    let ptr = 0 as *const T;
+    let ptr: *const T = ::std::ptr::null();
     let bytes = (elements * get_size(_type)) as DimT;
     unsafe {
         let err_val = af_alloc_host(&mut (ptr as *const c_void), bytes);