std: Clean up primitive integer modules

All of the modules in the standard library were just straight reexports of those
in libcore, so remove all the "macro modules" from the standard library and just
reexport what's in core directly.

26 files changed, 86 insertions, 314 deletions

diff --git a/src/libcore/num/i16.rs b/src/libcore/num/i16.rs
index dacb4ebcdfa..40544979417 100644
--- a/src/libcore/num/i16.rs
+++ b/src/libcore/num/i16.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for signed 16-bits integers (`i16` type)
+//! The 16-bit signed integer type.
+//!
+//! *[See also the `i16` primitive type](../primitive.i16.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/i32.rs b/src/libcore/num/i32.rs
index 250d66de70b..5d2ade8d8e0 100644
--- a/src/libcore/num/i32.rs
+++ b/src/libcore/num/i32.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for signed 32-bits integers (`i32` type)
+//! The 32-bit signed integer type.
+//!
+//! *[See also the `i32` primitive type](../primitive.i32.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/i64.rs b/src/libcore/num/i64.rs
index 5ed21d7246c..b1d43a3b838 100644
--- a/src/libcore/num/i64.rs
+++ b/src/libcore/num/i64.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for signed 64-bits integers (`i64` type)
+//! The 64-bit signed integer type.
+//!
+//! *[See also the `i64` primitive type](../primitive.i64.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/i8.rs b/src/libcore/num/i8.rs
index 0394c12d5c4..ee003d92b28 100644
--- a/src/libcore/num/i8.rs
+++ b/src/libcore/num/i8.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for signed 8-bits integers (`i8` type)
+//! The 8-bit signed integer type.
+//!
+//! *[See also the `i8` primitive type](../primitive.i8.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/isize.rs b/src/libcore/num/isize.rs
index 066cb10cce2..034a5c0eb89 100644
--- a/src/libcore/num/isize.rs
+++ b/src/libcore/num/isize.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for pointer-sized signed integers (`isize` type)
+//! The pointer-sized signed integer type.
+//!
+//! *[See also the `isize` primitive type](../primitive.isize.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/u16.rs b/src/libcore/num/u16.rs
index ecf79944848..68e50e8a400 100644
--- a/src/libcore/num/u16.rs
+++ b/src/libcore/num/u16.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for unsigned 16-bits integers (`u16` type)
+//! The 16-bit unsigned integer type.
+//!
+//! *[See also the `u16` primitive type](../primitive.u16.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/u32.rs b/src/libcore/num/u32.rs
index b0682b55ac0..c1ee96b363c 100644
--- a/src/libcore/num/u32.rs
+++ b/src/libcore/num/u32.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for unsigned 32-bits integers (`u32` type)
+//! The 32-bit unsigned integer type.
+//!
+//! *[See also the `u32` primitive type](../primitive.u32.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/u64.rs b/src/libcore/num/u64.rs
index dbc6a64a905..c0d18d850a7 100644
--- a/src/libcore/num/u64.rs
+++ b/src/libcore/num/u64.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for unsigned 64-bits integer (`u64` type)
+//! The 64-bit unsigned integer type.
+//!
+//! *[See also the `u64` primitive type](../primitive.u64.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/u8.rs b/src/libcore/num/u8.rs
index bf9347ca62c..a60c480d810 100644
--- a/src/libcore/num/u8.rs
+++ b/src/libcore/num/u8.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for unsigned 8-bits integers (`u8` type)
+//! The 8-bit unsigned integer type.
+//!
+//! *[See also the `u8` primitive type](../primitive.u8.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcore/num/usize.rs b/src/libcore/num/usize.rs
index 67e3c954ab6..70e790106e1 100644
--- a/src/libcore/num/usize.rs
+++ b/src/libcore/num/usize.rs
@@ -8,7 +8,9 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-//! Operations and constants for pointer-sized unsigned integers (`usize` type)
+//! The pointer-sized unsigned integer type.
+//!
+//! *[See also the `usize` primitive type](../primitive.usize.html).*
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
diff --git a/src/libcoretest/num/uint_macros.rs b/src/libcoretest/num/uint_macros.rs
index 1712345f9d9..6238c6d43e3 100644
--- a/src/libcoretest/num/uint_macros.rs
+++ b/src/libcoretest/num/uint_macros.rs
@@ -14,6 +14,7 @@ mod tests {
     use core::$T_i::*;
     use num;
     use core::ops::{BitOr, BitAnd, BitXor, Shl, Shr, Not};
+    use std::str;
 
     #[test]
     fn test_overflows() {
@@ -121,6 +122,35 @@ mod tests {
         assert!((10 as $T).checked_div(2) == Some(5));
         assert!((5 as $T).checked_div(0) == None);
     }
-}
+
+    fn from_str<T: FromStr>(t: &str) -> Option<T> {
+        FromStr::from_str(t).ok()
+    }
+
+    #[test]
+    pub fn test_from_str() {
+        assert_eq!(from_str::<$T>("0"), Some(0 as $T));
+        assert_eq!(from_str::<$T>("3"), Some(3 as $T));
+        assert_eq!(from_str::<$T>("10"), Some(10 as $T));
+        assert_eq!(from_str::<u32>("123456789"), Some(123456789 as u32));
+        assert_eq!(from_str::<$T>("00100"), Some(100 as $T));
+
+        assert_eq!(from_str::<$T>(""), None);
+        assert_eq!(from_str::<$T>(" "), None);
+        assert_eq!(from_str::<$T>("x"), None);
+    }
+
+    #[test]
+    pub fn test_parse_bytes() {
+        assert_eq!($T::from_str_radix("123", 10), Ok(123 as $T));
+        assert_eq!($T::from_str_radix("1001", 2), Ok(9 as $T));
+        assert_eq!($T::from_str_radix("123", 8), Ok(83 as $T));
+        assert_eq!(u16::from_str_radix("123", 16), Ok(291 as u16));
+        assert_eq!(u16::from_str_radix("ffff", 16), Ok(65535 as u16));
+        assert_eq!($T::from_str_radix("z", 36), Ok(35 as $T));
+
+        assert_eq!($T::from_str_radix("Z", 10).ok(), None::<$T>);
+        assert_eq!($T::from_str_radix("_", 2).ok(), None::<$T>);
+    }
 
 )}
diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs
index 655fa04c264..8fed380a5b4 100644
--- a/src/libstd/lib.rs
+++ b/src/libstd/lib.rs
@@ -253,7 +253,6 @@
 // Don't link to std. We are std.
 #![no_std]
 
-#![allow(trivial_casts)]
 #![deny(missing_docs)]
 
 #[cfg(test)] extern crate test;
@@ -263,7 +262,7 @@
 // imported by the compiler (via our #[no_std] attribute) In this case we just
 // add a new crate name so we can attach the reexports to it.
 #[macro_reexport(assert, assert_eq, debug_assert, debug_assert_eq,
-    unreachable, unimplemented, write, writeln)]
+                 unreachable, unimplemented, write, writeln)]
 extern crate core as __core;
 
 #[macro_use]
@@ -307,7 +306,6 @@ pub use core_collections::fmt;
 pub use core_collections::slice;
 pub use core_collections::str;
 pub use core_collections::string;
-#[stable(feature = "rust1", since = "1.0.0")]
 pub use core_collections::vec;
 
 pub use rustc_unicode::char;
@@ -326,32 +324,21 @@ pub mod prelude;
 
 /* Primitive types */
 
-// NB: slice and str are primitive types too, but their module docs + primitive doc pages
-// are inlined from the public re-exports of core_collections::{slice, str} above.
-
-#[path = "num/float_macros.rs"]
-#[macro_use]
-mod float_macros;
-
-#[path = "num/int_macros.rs"]
-#[macro_use]
-mod int_macros;
-
-#[path = "num/uint_macros.rs"]
-#[macro_use]
-mod uint_macros;
-
-#[path = "num/isize.rs"]  pub mod isize;
-#[path = "num/i8.rs"]   pub mod i8;
-#[path = "num/i16.rs"]  pub mod i16;
-#[path = "num/i32.rs"]  pub mod i32;
-#[path = "num/i64.rs"]  pub mod i64;
-
-#[path = "num/usize.rs"] pub mod usize;
-#[path = "num/u8.rs"]   pub mod u8;
-#[path = "num/u16.rs"]  pub mod u16;
-#[path = "num/u32.rs"]  pub mod u32;
-#[path = "num/u64.rs"]  pub mod u64;
+// NB: slice and str are primitive types too, but their module docs + primitive
+// doc pages are inlined from the public re-exports of core_collections::{slice,
+// str} above.
+
+pub use core::isize;
+pub use core::i8;
+pub use core::i16;
+pub use core::i32;
+pub use core::i64;
+
+pub use core::usize;
+pub use core::u8;
+pub use core::u16;
+pub use core::u32;
+pub use core::u64;
 
 #[path = "num/f32.rs"]   pub mod f32;
 #[path = "num/f64.rs"]   pub mod f64;
diff --git a/src/libstd/macros.rs b/src/libstd/macros.rs
index eb378bf4080..53a14c2b21b 100644
--- a/src/libstd/macros.rs
+++ b/src/libstd/macros.rs
@@ -197,6 +197,15 @@ macro_rules! log {
     )
 }
 
+#[cfg(test)]
+macro_rules! assert_approx_eq {
+    ($a:expr, $b:expr) => ({
+        let (a, b) = (&$a, &$b);
+        assert!((*a - *b).abs() < 1.0e-6,
+                "{} is not approximately equal to {}", *a, *b);
+    })
+}
+
 /// Built-in macros to the compiler itself.
 ///
 /// These macros do not have any corresponding definition with a `macro_rules!`
diff --git a/src/libstd/num/float_macros.rs b/src/libstd/num/float_macros.rs
deleted file mode 100644
index 16ad21a07d7..00000000000
--- a/src/libstd/num/float_macros.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![doc(hidden)]
-
-macro_rules! assert_approx_eq {
-    ($a:expr, $b:expr) => ({
-        let (a, b) = (&$a, &$b);
-        assert!((*a - *b).abs() < 1.0e-6,
-                "{} is not approximately equal to {}", *a, *b);
-    })
-}
diff --git a/src/libstd/num/i16.rs b/src/libstd/num/i16.rs
deleted file mode 100644
index eb53e0821f2..00000000000
--- a/src/libstd/num/i16.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 16-bit signed integer type.
-//!
-//! *[See also the `i16` primitive type](../primitive.i16.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::i16::{BITS, BYTES, MIN, MAX};
-
-int_module! { i16 }
diff --git a/src/libstd/num/i32.rs b/src/libstd/num/i32.rs
deleted file mode 100644
index 3c9eedf38c7..00000000000
--- a/src/libstd/num/i32.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 32-bit signed integer type.
-//!
-//! *[See also the `i32` primitive type](../primitive.i32.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::i32::{BITS, BYTES, MIN, MAX};
-
-int_module! { i32 }
diff --git a/src/libstd/num/i64.rs b/src/libstd/num/i64.rs
deleted file mode 100644
index 2df7478a820..00000000000
--- a/src/libstd/num/i64.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 64-bit signed integer type.
-//!
-//! *[See also the `i64` primitive type](../primitive.i64.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::i64::{BITS, BYTES, MIN, MAX};
-
-int_module! { i64 }
diff --git a/src/libstd/num/i8.rs b/src/libstd/num/i8.rs
deleted file mode 100644
index 4e4bee8a791..00000000000
--- a/src/libstd/num/i8.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 8-bit signed integer type.
-//!
-//! *[See also the `i8` primitive type](../primitive.i8.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::i8::{BITS, BYTES, MIN, MAX};
-
-int_module! { i8 }
diff --git a/src/libstd/num/int_macros.rs b/src/libstd/num/int_macros.rs
deleted file mode 100644
index 178fad09f98..00000000000
--- a/src/libstd/num/int_macros.rs
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![doc(hidden)]
-
-macro_rules! int_module { ($T:ty) => (
-
-) }
diff --git a/src/libstd/num/isize.rs b/src/libstd/num/isize.rs
deleted file mode 100644
index d46b6b80d0d..00000000000
--- a/src/libstd/num/isize.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The pointer-sized signed integer type.
-//!
-//! *[See also the `isize` primitive type](../primitive.isize.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::isize::{BITS, BYTES, MIN, MAX};
-
-int_module! { isize }
diff --git a/src/libstd/num/u16.rs b/src/libstd/num/u16.rs
deleted file mode 100644
index 893618aeffa..00000000000
--- a/src/libstd/num/u16.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 16-bit unsigned integer type.
-//!
-//! *[See also the `u16` primitive type](../primitive.u16.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::u16::{BITS, BYTES, MIN, MAX};
-
-uint_module! { u16 }
diff --git a/src/libstd/num/u32.rs b/src/libstd/num/u32.rs
deleted file mode 100644
index 2da25519696..00000000000
--- a/src/libstd/num/u32.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 32-bit unsigned integer type.
-//!
-//! *[See also the `u32` primitive type](../primitive.u32.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::u32::{BITS, BYTES, MIN, MAX};
-
-uint_module! { u32 }
diff --git a/src/libstd/num/u64.rs b/src/libstd/num/u64.rs
deleted file mode 100644
index 26a8b537394..00000000000
--- a/src/libstd/num/u64.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 64-bit unsigned integer type.
-//!
-//! *[See also the `u64` primitive type](../primitive.u64.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::u64::{BITS, BYTES, MIN, MAX};
-
-uint_module! { u64 }
diff --git a/src/libstd/num/u8.rs b/src/libstd/num/u8.rs
deleted file mode 100644
index 385754b93a0..00000000000
--- a/src/libstd/num/u8.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The 8-bit unsigned integer type.
-//!
-//! *[See also the `u8` primitive type](../primitive.u8.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::u8::{BITS, BYTES, MIN, MAX};
-
-uint_module! { u8 }
diff --git a/src/libstd/num/uint_macros.rs b/src/libstd/num/uint_macros.rs
deleted file mode 100644
index 902c78c0a46..00000000000
--- a/src/libstd/num/uint_macros.rs
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-#![doc(hidden)]
-
-macro_rules! uint_module { ($T:ident) => (
-
-#[cfg(test)]
-mod tests {
-    use prelude::v1::*;
-
-    fn from_str<T: ::str::FromStr>(t: &str) -> Option<T> {
-        ::str::FromStr::from_str(t).ok()
-    }
-
-    #[test]
-    pub fn test_from_str() {
-        assert_eq!(from_str::<$T>("0"), Some(0 as $T));
-        assert_eq!(from_str::<$T>("3"), Some(3 as $T));
-        assert_eq!(from_str::<$T>("10"), Some(10 as $T));
-        assert_eq!(from_str::<u32>("123456789"), Some(123456789 as u32));
-        assert_eq!(from_str::<$T>("00100"), Some(100 as $T));
-
-        assert_eq!(from_str::<$T>(""), None);
-        assert_eq!(from_str::<$T>(" "), None);
-        assert_eq!(from_str::<$T>("x"), None);
-    }
-
-    #[test]
-    pub fn test_parse_bytes() {
-        assert_eq!($T::from_str_radix("123", 10), Ok(123 as $T));
-        assert_eq!($T::from_str_radix("1001", 2), Ok(9 as $T));
-        assert_eq!($T::from_str_radix("123", 8), Ok(83 as $T));
-        assert_eq!(u16::from_str_radix("123", 16), Ok(291 as u16));
-        assert_eq!(u16::from_str_radix("ffff", 16), Ok(65535 as u16));
-        assert_eq!($T::from_str_radix("z", 36), Ok(35 as $T));
-
-        assert_eq!($T::from_str_radix("Z", 10).ok(), None::<$T>);
-        assert_eq!($T::from_str_radix("_", 2).ok(), None::<$T>);
-    }
-}
-
-) }
diff --git a/src/libstd/num/usize.rs b/src/libstd/num/usize.rs
deleted file mode 100644
index 6960ba3b829..00000000000
--- a/src/libstd/num/usize.rs
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-//! The pointer-sized unsigned integer type.
-//!
-//! *[See also the `usize` primitive type](../primitive.usize.html).*
-
-#![stable(feature = "rust1", since = "1.0.0")]
-
-pub use core::usize::{BITS, BYTES, MIN, MAX};
-
-uint_module! { usize }