Use the num-traits crate directly instead of num

Cargo.toml

@@ -19,10 +19,7 @@ path       = "src/sdl2/lib.rs"
 bitflags = "^1"
 libc = "^0.2"
 lazy_static = "^1"
-
-[dependencies.num]
-version = "^0.1"
-default-features = false
+num-traits = "^0.2"
 
 [dependencies.sdl2-sys]
 path = "sdl2-sys"

src/sdl2/audio.rs

@@ -53,7 +53,7 @@
 //! ```
 
 use std::ffi::{CStr, CString};
-use num::FromPrimitive;
+use num_traits::FromPrimitive;
 use libc::{c_int, c_void, c_char};
 use std::ops::{Deref, DerefMut};
 use std::path::Path;
@@ -810,13 +810,13 @@ impl AudioCVT {
         //! the conversion in place; then it is passed to the SDL library.
         //!
         //! Certain conversions may cause buffer overflows. See AngryLawyer/rust-sdl2 issue #270.
-        use num::traits as num;
         unsafe {
             if self.raw.needed != 0 {
                 let mut raw = self.raw;
 
                 // calculate the size of the dst buffer
-                raw.len = num::cast(src.len()).expect("Buffer length overflow");
+                use std::convert::TryInto;
+                raw.len = src.len().try_into().expect("Buffer length overflow");
                 let dst_size = self.capacity(src.len());
                 let needed = dst_size - src.len();
                 src.reserve_exact(needed);

src/sdl2/event.rs

@@ -5,7 +5,7 @@ Event Handling
 use std::ffi::CStr;
 use std::mem;
 use libc::c_int;
-use num::FromPrimitive;
+use num_traits::FromPrimitive;
 use std::ptr;
 use std::borrow::ToOwned;
 use std::iter::FromIterator;

src/sdl2/gfx/primitives.rs

@@ -3,7 +3,7 @@
 use std::mem;
 use std::ptr;
 use std::ffi::CString;
-use num::traits::ToPrimitive;
+use std::convert::TryFrom;
 use libc::{c_int, c_char};
 use libc::c_void;
 use render::Canvas;
@@ -57,12 +57,12 @@ impl ToColor for u32 {
 impl ToColor for isize {
     #[inline]
     fn as_rgba(&self) -> (u8, u8, u8, u8) {
-        unsafe { mem::transmute(self.to_u32().expect("Can't convert to Color Type")) }
+        unsafe { mem::transmute(u32::try_from(*self).expect("Can't convert to Color Type")) }
     }
 
     #[inline]
     fn as_u32(&self) -> u32 {
-        self.to_u32().expect("Can't convert to Color Type")
+        u32::try_from(*self).expect("Can't convert to Color Type")
     }
 }
 

src/sdl2/lib.rs

@@ -50,7 +50,7 @@
 
 #![allow(clippy::cast_lossless, clippy::transmute_ptr_to_ref)]
 
-extern crate num;
+extern crate num_traits;
 pub extern crate libc;
 
 #[macro_use]

src/sdl2/pixels.rs

@@ -1,4 +1,4 @@
-use num::FromPrimitive;
+use num_traits::FromPrimitive;
 use std::mem::transmute;
 use std::convert::TryFrom;
 use crate::sys;

src/sdl2/render.rs

@@ -46,7 +46,7 @@ use libc::{c_int, c_double};
 use crate::rect::Point;
 use crate::rect::Rect;
 use std::ffi::CStr;
-use num::FromPrimitive;
+use num_traits::FromPrimitive;
 use std::vec::Vec;
 use crate::common::{validate_int, IntegerOrSdlError};
 use std::mem::{transmute, MaybeUninit};

src/sdl2/surface.rs

@@ -8,7 +8,7 @@ use crate::rect::Rect;
 use crate::get_error;
 use std::ptr;
 use libc::c_int;
-use num::FromPrimitive;
+use num_traits::FromPrimitive;
 use crate::pixels;
 use crate::render::{BlendMode, Canvas};
 use crate::rwops::RWops;

src/sdl2/video.rs

@@ -11,7 +11,7 @@ use crate::surface::SurfaceRef;
 use crate::pixels::PixelFormatEnum;
 use crate::VideoSubsystem;
 use crate::EventPump;
-use num::FromPrimitive;
+use num_traits::FromPrimitive;
 use crate::common::{validate_int, IntegerOrSdlError};
 
 use crate::get_error;