Fix warning messages

Author: 9prady9

src/arith/mod.rs

@@ -14,8 +14,6 @@ use std::ops::Neg;
 type Complex32  = Complex<f32>;
 type Complex64  = Complex<f64>;
 type MutAfArray = *mut self::libc::c_longlong;
-type MutDouble  = *mut self::libc::c_double;
-type MutUint    = *mut self::libc::c_uint;
 type AfArray    = self::libc::c_longlong;
 
 use std::ops::{Add, Sub, Div, Mul, BitAnd, BitOr, BitXor, Not, Rem, Shl, Shr};

src/array.rs

@@ -8,12 +8,9 @@ use self::libc::{uint8_t, c_void, c_int, c_uint, c_longlong, c_char};
 use std::ffi::CString;
 
 type MutAfArray = *mut self::libc::c_longlong;
-type MutDouble  = *mut self::libc::c_double;
-type MutUint    = *mut self::libc::c_uint;
 type AfArray    = self::libc::c_longlong;
 type DimT       = self::libc::c_longlong;
 type MutVoidPtr = *mut self::libc::c_ulonglong;
-type VoidPtr    = self::libc::c_ulonglong;
 
 // Some unused functions from array.h in C-API of ArrayFire
 // af_create_handle

src/data/mod.rs

@@ -11,8 +11,6 @@ use util::HasAfEnum;
 use std::vec::Vec;
 
 type MutAfArray = *mut self::libc::c_longlong;
-type MutDouble  = *mut self::libc::c_double;
-type MutUint    = *mut self::libc::c_uint;
 type AfArray    = self::libc::c_longlong;
 type DimT       = self::libc::c_longlong;
 type Intl       = self::libc::c_longlong;

src/device/mod.rs

@@ -1,8 +1,8 @@
 extern crate libc;
 
-use defines::{AfError, DType};
+use defines::{AfError};
 use error::HANDLE_ERROR;
-use self::libc::{c_int, size_t, c_char, c_void};
+use self::libc::{c_int, size_t, c_char};
 use std::ffi::{CStr, CString};
 use std::borrow::Cow;
 use util::free_host;

src/random/mod.rs

@@ -8,11 +8,9 @@ use self::libc::{uint8_t, c_int, c_uint};
 use util::HasAfEnum;
 
 type MutAfArray = *mut self::libc::c_longlong;
-type AfArray    = self::libc::c_longlong;
 type MutRandEngine = *mut self::libc::c_longlong;
 type RandEngine    = self::libc::c_longlong;
 type DimT    = self::libc::c_longlong;
-type Intl    = self::libc::c_longlong;
 type Uintl   = self::libc::c_ulonglong;
 
 #[allow(dead_code)]

src/util.rs

@@ -31,6 +31,7 @@ pub fn get_size(value: DType) -> usize {
 }
 
 /// Allocates space using Arrayfire allocator in host memory
+#[allow(dead_code)]
 pub fn alloc_host<T>(elements: usize, _type: DType) -> *const T {
     let ptr: *const T = ::std::ptr::null();
     let bytes = (elements * get_size(_type)) as DimT;