Use num-traits. (#72)

Cargo.toml

@@ -13,7 +13,7 @@ description = "A binary serialization / deserialization strategy and implementat
 [dependencies]
 rustc-serialize = { version = "0.3.*", optional = true }
 byteorder = "0.5.*"
-num = { version = "0.1.*", default-features = false }
+num-traits = "0.1.32"
 serde = { version = "0.7.*", optional = true }
 
 [dev-dependencies]

src/lib.rs

@@ -40,7 +40,7 @@
 #[cfg(feature = "rustc-serialize")]
 extern crate rustc_serialize as rustc_serialize_crate;
 extern crate byteorder;
-extern crate num;
+extern crate num_traits;
 #[cfg(feature = "serde")]
 extern crate serde as serde_crate;
 

src/serde/reader.rs

@@ -5,7 +5,7 @@ use std::fmt;
 use std::convert::From;
 
 use byteorder::{BigEndian, ReadBytesExt};
-use num;
+use num_traits;
 use serde_crate as serde;
 use serde_crate::de::value::ValueDeserializer;
 use serde_crate::de::Deserializer as SerdeDeserializer;
@@ -222,7 +222,7 @@ impl<'a, R: Read> serde::Deserializer for Deserializer<'a, R> {
     {
         try!(self.read_type::<u64>());
         let value = try!(self.reader.read_u64::<BigEndian>());
-        match num::cast(value) {
+        match num_traits::cast(value) {
             Some(value) => visitor.visit_usize(value),
             None => Err(DeserializeError::Serde(serde::de::value::Error::Custom("expected usize".into())))
         }
@@ -242,7 +242,7 @@ impl<'a, R: Read> serde::Deserializer for Deserializer<'a, R> {
     {
         try!(self.read_type::<i64>());
         let value = try!(self.reader.read_i64::<BigEndian>());
-        match num::cast(value) {
+        match num_traits::cast(value) {
             Some(value) => visitor.visit_isize(value),
             None => Err(DeserializeError::Serde(serde::de::value::Error::Custom("expected isize".into()))),
         }