Add 'feature' and 'since' to stability attributes

18 files changed, 129 insertions, 105 deletions

diff --git a/src/libstd/num/f32.rs b/src/libstd/num/f32.rs
index adbce893887..a9e40e96332 100644
--- a/src/libstd/num/f32.rs
+++ b/src/libstd/num/f32.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for 32-bits floats (`f32` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![allow(missing_docs)]
 #![allow(unsigned_negation)]
 #![doc(primitive = "f32")]
@@ -73,7 +73,7 @@ mod cmath {
     }
 }
 
-#[stable]
+#[stable(feature = "grandfathered", since = "1.0.0")]
 impl Float for f32 {
     #[inline]
     fn nan() -> f32 { num::Float::nan() }
@@ -366,7 +366,7 @@ impl Float for f32 {
 ///
 /// * num - The float value
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_string(num: f32) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigAll, ExpNone, false);
@@ -379,7 +379,7 @@ pub fn to_string(num: f32) -> String {
 ///
 /// * num - The float value
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_hex(num: f32) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 16u, true, SignNeg, DigAll, ExpNone, false);
@@ -394,7 +394,7 @@ pub fn to_str_hex(num: f32) -> String {
 /// * num - The float value
 /// * radix - The base to use
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_radix_special(num: f32, rdx: uint) -> (String, bool) {
     strconv::float_to_str_common(num, rdx, true, SignNeg, DigAll, ExpNone, false)
 }
@@ -407,7 +407,7 @@ pub fn to_str_radix_special(num: f32, rdx: uint) -> (String, bool) {
 /// * num - The float value
 /// * digits - The number of significant digits
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_exact(num: f32, dig: uint) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigExact(dig), ExpNone, false);
@@ -422,7 +422,7 @@ pub fn to_str_exact(num: f32, dig: uint) -> String {
 /// * num - The float value
 /// * digits - The number of significant digits
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_digits(num: f32, dig: uint) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigMax(dig), ExpNone, false);
@@ -438,7 +438,7 @@ pub fn to_str_digits(num: f32, dig: uint) -> String {
 /// * digits - The number of digits after the decimal point
 /// * upper - Use `E` instead of `e` for the exponent sign
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_exp_exact(num: f32, dig: uint, upper: bool) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigExact(dig), ExpDec, upper);
@@ -454,7 +454,7 @@ pub fn to_str_exp_exact(num: f32, dig: uint, upper: bool) -> String {
 /// * digits - The number of digits after the decimal point
 /// * upper - Use `E` instead of `e` for the exponent sign
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_exp_digits(num: f32, dig: uint, upper: bool) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigMax(dig), ExpDec, upper);
diff --git a/src/libstd/num/f64.rs b/src/libstd/num/f64.rs
index baff14125ee..ae5db0b1fd8 100644
--- a/src/libstd/num/f64.rs
+++ b/src/libstd/num/f64.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for 64-bits floats (`f64` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![allow(missing_docs)]
 #![doc(primitive = "f64")]
 
@@ -81,7 +81,7 @@ mod cmath {
     }
 }
 
-#[stable]
+#[stable(feature = "grandfathered", since = "1.0.0")]
 impl Float for f64 {
     // inlined methods from `num::Float`
     #[inline]
@@ -375,7 +375,7 @@ impl Float for f64 {
 ///
 /// * num - The float value
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_string(num: f64) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigAll, ExpNone, false);
@@ -388,7 +388,7 @@ pub fn to_string(num: f64) -> String {
 ///
 /// * num - The float value
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_hex(num: f64) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 16u, true, SignNeg, DigAll, ExpNone, false);
@@ -403,7 +403,7 @@ pub fn to_str_hex(num: f64) -> String {
 /// * num - The float value
 /// * radix - The base to use
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_radix_special(num: f64, rdx: uint) -> (String, bool) {
     strconv::float_to_str_common(num, rdx, true, SignNeg, DigAll, ExpNone, false)
 }
@@ -416,7 +416,7 @@ pub fn to_str_radix_special(num: f64, rdx: uint) -> (String, bool) {
 /// * num - The float value
 /// * digits - The number of significant digits
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_exact(num: f64, dig: uint) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigExact(dig), ExpNone, false);
@@ -431,7 +431,7 @@ pub fn to_str_exact(num: f64, dig: uint) -> String {
 /// * num - The float value
 /// * digits - The number of significant digits
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_digits(num: f64, dig: uint) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigMax(dig), ExpNone, false);
@@ -447,7 +447,7 @@ pub fn to_str_digits(num: f64, dig: uint) -> String {
 /// * digits - The number of digits after the decimal point
 /// * upper - Use `E` instead of `e` for the exponent sign
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_exp_exact(num: f64, dig: uint, upper: bool) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigExact(dig), ExpDec, upper);
@@ -463,7 +463,7 @@ pub fn to_str_exp_exact(num: f64, dig: uint, upper: bool) -> String {
 /// * digits - The number of digits after the decimal point
 /// * upper - Use `E` instead of `e` for the exponent sign
 #[inline]
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub fn to_str_exp_digits(num: f64, dig: uint, upper: bool) -> String {
     let (r, _) = strconv::float_to_str_common(
         num, 10u, true, SignNeg, DigMax(dig), ExpDec, upper);
diff --git a/src/libstd/num/float_macros.rs b/src/libstd/num/float_macros.rs
index ec168eaaa9d..38bb62d2414 100644
--- a/src/libstd/num/float_macros.rs
+++ b/src/libstd/num/float_macros.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![unstable]
+#![unstable(feature = "unnamed_feature", since = "1.0.0")]
 #![doc(hidden)]
 
 macro_rules! assert_approx_eq {
diff --git a/src/libstd/num/i16.rs b/src/libstd/num/i16.rs
index 367147b84be..cd4e41432af 100644
--- a/src/libstd/num/i16.rs
+++ b/src/libstd/num/i16.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 16-bits integers (`i16` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "i16")]
 
 pub use core::i16::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/i32.rs b/src/libstd/num/i32.rs
index 19fb40c9644..89f3ab81c94 100644
--- a/src/libstd/num/i32.rs
+++ b/src/libstd/num/i32.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 32-bits integers (`i32` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "i32")]
 
 pub use core::i32::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/i64.rs b/src/libstd/num/i64.rs
index 2379b03c64f..6c866382ed3 100644
--- a/src/libstd/num/i64.rs
+++ b/src/libstd/num/i64.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 64-bits integers (`i64` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "i64")]
 
 pub use core::i64::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/i8.rs b/src/libstd/num/i8.rs
index a09ceefc6a0..521b24cdf73 100644
--- a/src/libstd/num/i8.rs
+++ b/src/libstd/num/i8.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for signed 8-bits integers (`i8` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "i8")]
 
 pub use core::i8::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/int.rs b/src/libstd/num/int.rs
index 69439f85115..2bf9f9b025d 100644
--- a/src/libstd/num/int.rs
+++ b/src/libstd/num/int.rs
@@ -14,7 +14,7 @@
 //! alpha cycle along with the development of clearer conventions
 //! around integer types.
 
-#![deprecated = "replaced by isize"]
+#![deprecated(feature = "oldstuff", since = "1.0.0", reason = "replaced by isize")]
 
 pub use core::int::{BITS, BYTES, MIN, MAX};
 
diff --git a/src/libstd/num/int_macros.rs b/src/libstd/num/int_macros.rs
index 5bc54152874..640d814c046 100644
--- a/src/libstd/num/int_macros.rs
+++ b/src/libstd/num/int_macros.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![unstable]
+#![unstable(feature = "unnamed_feature", since = "1.0.0")]
 #![doc(hidden)]
 
 macro_rules! int_module { ($T:ty) => (
diff --git a/src/libstd/num/isize.rs b/src/libstd/num/isize.rs
index 22395a1c0ff..c0ae4d6a2cd 100644
--- a/src/libstd/num/isize.rs
+++ b/src/libstd/num/isize.rs
@@ -14,7 +14,7 @@
 //! new type will gradually take place over the alpha cycle along with
 //! the development of clearer conventions around integer types.
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "isize")]
 
 pub use core::isize::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/mod.rs b/src/libstd/num/mod.rs
index 3432767d6cd..82363a8e169 100644
--- a/src/libstd/num/mod.rs
+++ b/src/libstd/num/mod.rs
@@ -13,7 +13,7 @@
 //! These are implemented for the primitive numeric types in `std::{u8, u16,
 //! u32, u64, uint, i8, i16, i32, i64, int, f32, f64}`.
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![allow(missing_docs)]
 
 #[cfg(test)] use fmt::Show;
@@ -33,11 +33,11 @@ pub use core::num::{FpCategory};
 
 use option::Option;
 
-#[unstable = "may be removed or relocated"]
+#[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be removed or relocated")]
 pub mod strconv;
 
 /// Mathematical operations on primitive floating point numbers.
-#[stable]
+#[stable(feature = "grandfathered", since = "1.0.0")]
 pub trait Float
     : Copy + Clone
     + NumCast
@@ -52,172 +52,193 @@ pub trait Float
 {
     // inlined methods from `num::Float`
     /// Returns the NaN value.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn nan() -> Self;
     /// Returns the infinite value.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn infinity() -> Self;
     /// Returns the negative infinite value.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn neg_infinity() -> Self;
     /// Returns the `0` value.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn zero() -> Self;
     /// Returns -0.0.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn neg_zero() -> Self;
     /// Returns the `1` value.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn one() -> Self;
 
     // FIXME (#5527): These should be associated constants
 
     /// Returns the number of binary digits of mantissa that this type supports.
-    #[deprecated = "use `std::f32::MANTISSA_DIGITS` or `std::f64::MANTISSA_DIGITS` as appropriate"]
+    #[deprecated(feature = "oldstuff", since = "1.0.0",
+                 reason = "use `std::f32::MANTISSA_DIGITS` or \
+                           `std::f64::MANTISSA_DIGITS` as appropriate")]
     fn mantissa_digits(unused_self: Option<Self>) -> uint;
     /// Returns the number of base-10 digits of precision that this type supports.
-    #[deprecated = "use `std::f32::DIGITS` or `std::f64::DIGITS` as appropriate"]
+    #[deprecated(feature = "oldstuff", since = "1.0.0",
+                 reason = "use `std::f32::DIGITS` or `std::f64::DIGITS` as appropriate")]
     fn digits(unused_self: Option<Self>) -> uint;
     /// Returns the difference between 1.0 and the smallest representable number larger than 1.0.
-    #[deprecated = "use `std::f32::EPSILON` or `std::f64::EPSILON` as appropriate"]
+    #[deprecated(feature = "oldstuff", since = "1.0.0",
+                 reason = "use `std::f32::EPSILON` or `std::f64::EPSILON` as appropriate")]
     fn epsilon() -> Self;
     /// Returns the minimum binary exponent that this type can represent.
-    #[deprecated = "use `std::f32::MIN_EXP` or `std::f64::MIN_EXP` as appropriate"]
+    #[deprecated(feature = "oldstuff", since = "1.0.0",
+                 reason = "use `std::f32::MIN_EXP` or `std::f64::MIN_EXP` as appropriate")]
     fn min_exp(unused_self: Option<Self>) -> int;
     /// Returns the maximum binary exponent that this type can represent.
-    #[deprecated = "use `std::f32::MAX_EXP` or `std::f64::MAX_EXP` as appropriate"]
+    #[deprecated(feature = "oldstuff", since = "1.0.0",
+                 reason = "use `std::f32::MAX_EXP` or `std::f64::MAX_EXP` as appropriate")]
     fn max_exp(unused_self: Option<Self>) -> int;
     /// Returns the minimum base-10 exponent that this type can represent.
-    #[deprecated = "use `std::f32::MIN_10_EXP` or `std::f64::MIN_10_EXP` as appropriate"]
+    #[deprecated(feature = "oldstuff", since = "1.0.0",
+                 reason = "use `std::f32::MIN_10_EXP` or `std::f64::MIN_10_EXP` as appropriate")]
     fn min_10_exp(unused_self: Option<Self>) -> int;
     /// Returns the maximum base-10 exponent that this type can represent.
-    #[deprecated = "use `std::f32::MAX_10_EXP` or `std::f64::MAX_10_EXP` as appropriate"]
+    #[deprecated(feature = "oldstuff", since = "1.0.0",
+                 reason = "use `std::f32::MAX_10_EXP` or `std::f64::MAX_10_EXP` as appropriate")]
     fn max_10_exp(unused_self: Option<Self>) -> int;
 
     /// Returns the smallest finite value that this type can represent.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn min_value() -> Self;
     /// Returns the smallest normalized positive number that this type can represent.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn min_pos_value(unused_self: Option<Self>) -> Self;
     /// Returns the largest finite value that this type can represent.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn max_value() -> Self;
 
     /// Returns true if this value is NaN and false otherwise.
-    #[unstable = "position is undecided"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "position is undecided")]
     fn is_nan(self) -> bool;
     /// Returns true if this value is positive infinity or negative infinity and
     /// false otherwise.
-    #[unstable = "position is undecided"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "position is undecided")]
     fn is_infinite(self) -> bool;
     /// Returns true if this number is neither infinite nor NaN.
-    #[unstable = "position is undecided"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "position is undecided")]
     fn is_finite(self) -> bool;
     /// Returns true if this number is neither zero, infinite, denormal, or NaN.
-    #[unstable = "position is undecided"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "position is undecided")]
     fn is_normal(self) -> bool;
     /// Returns the category that this number falls into.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn classify(self) -> FpCategory;
 
     /// Returns the mantissa, exponent and sign as integers, respectively.
-    #[unstable = "signature is undecided"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "signature is undecided")]
     fn integer_decode(self) -> (u64, i16, i8);
 
     /// Return the largest integer less than or equal to a number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn floor(self) -> Self;
     /// Return the smallest integer greater than or equal to a number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn ceil(self) -> Self;
     /// Return the nearest integer to a number. Round half-way cases away from
     /// `0.0`.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn round(self) -> Self;
     /// Return the integer part of a number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn trunc(self) -> Self;
     /// Return the fractional part of a number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn fract(self) -> Self;
 
     /// Computes the absolute value of `self`. Returns `Float::nan()` if the
     /// number is `Float::nan()`.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn abs(self) -> Self;
     /// Returns a number that represents the sign of `self`.
     ///
     /// - `1.0` if the number is positive, `+0.0` or `Float::infinity()`
     /// - `-1.0` if the number is negative, `-0.0` or `Float::neg_infinity()`
     /// - `Float::nan()` if the number is `Float::nan()`
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn signum(self) -> Self;
     /// Returns `true` if `self` is positive, including `+0.0` and
     /// `Float::infinity()`.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn is_positive(self) -> bool;
     /// Returns `true` if `self` is negative, including `-0.0` and
     /// `Float::neg_infinity()`.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn is_negative(self) -> bool;
 
     /// Fused multiply-add. Computes `(self * a) + b` with only one rounding
     /// error. This produces a more accurate result with better performance than
     /// a separate multiplication operation followed by an add.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn mul_add(self, a: Self, b: Self) -> Self;
     /// Take the reciprocal (inverse) of a number, `1/x`.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn recip(self) -> Self;
 
     /// Raise a number to an integer power.
     ///
     /// Using this function is generally faster than using `powf`
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn powi(self, n: i32) -> Self;
     /// Raise a number to a floating point power.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn powf(self, n: Self) -> Self;
 
     /// Take the square root of a number.
     ///
     /// Returns NaN if `self` is a negative number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn sqrt(self) -> Self;
     /// Take the reciprocal (inverse) square root of a number, `1/sqrt(x)`.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn rsqrt(self) -> Self;
 
     /// Returns `e^(self)`, (the exponential function).
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn exp(self) -> Self;
     /// Returns 2 raised to the power of the number, `2^(self)`.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn exp2(self) -> Self;
     /// Returns the natural logarithm of the number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn ln(self) -> Self;
     /// Returns the logarithm of the number with respect to an arbitrary base.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn log(self, base: Self) -> Self;
     /// Returns the base 2 logarithm of the number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn log2(self) -> Self;
     /// Returns the base 10 logarithm of the number.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn log10(self) -> Self;
 
     /// Convert radians to degrees.
-    #[unstable = "desirability is unclear"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "desirability is unclear")]
     fn to_degrees(self) -> Self;
     /// Convert degrees to radians.
-    #[unstable = "desirability is unclear"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "desirability is unclear")]
     fn to_radians(self) -> Self;
 
     /// Constructs a floating point number created by multiplying `x` by 2
     /// raised to the power of `exp`.
-    #[unstable = "pending integer conventions"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "pending integer conventions")]
     fn ldexp(x: Self, exp: int) -> Self;
     /// Breaks the number into a normalized fraction and a base-2 exponent,
     /// satisfying:
@@ -225,94 +246,97 @@ pub trait Float
     ///  * `self = x * pow(2, exp)`
     ///
     ///  * `0.5 <= abs(x) < 1.0`
-    #[unstable = "pending integer conventions"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "pending integer conventions")]
     fn frexp(self) -> (Self, int);
 
     /// Returns the next representable floating-point value in the direction of
     /// `other`.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn next_after(self, other: Self) -> Self;
 
     /// Returns the maximum of the two numbers.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn max(self, other: Self) -> Self;
     /// Returns the minimum of the two numbers.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn min(self, other: Self) -> Self;
 
     /// The positive difference of two numbers. Returns `0.0` if the number is
     /// less than or equal to `other`, otherwise the difference between`self`
     /// and `other` is returned.
-    #[unstable = "may be renamed"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be renamed")]
     fn abs_sub(self, other: Self) -> Self;
 
     /// Take the cubic root of a number.
-    #[unstable = "may be renamed"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be renamed")]
     fn cbrt(self) -> Self;
     /// Calculate the length of the hypotenuse of a right-angle triangle given
     /// legs of length `x` and `y`.
-    #[unstable = "unsure about its place in the world"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0",
+               reason = "unsure about its place in the world")]
     fn hypot(self, other: Self) -> Self;
 
     /// Computes the sine of a number (in radians).
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn sin(self) -> Self;
     /// Computes the cosine of a number (in radians).
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn cos(self) -> Self;
     /// Computes the tangent of a number (in radians).
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn tan(self) -> Self;
 
     /// Computes the arcsine of a number. Return value is in radians in
     /// the range [-pi/2, pi/2] or NaN if the number is outside the range
     /// [-1, 1].
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn asin(self) -> Self;
     /// Computes the arccosine of a number. Return value is in radians in
     /// the range [0, pi] or NaN if the number is outside the range
     /// [-1, 1].
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn acos(self) -> Self;
     /// Computes the arctangent of a number. Return value is in radians in the
     /// range [-pi/2, pi/2];
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn atan(self) -> Self;
     /// Computes the four quadrant arctangent of a number, `y`, and another
     /// number `x`. Return value is in radians in the range [-pi, pi].
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn atan2(self, other: Self) -> Self;
     /// Simultaneously computes the sine and cosine of the number, `x`. Returns
     /// `(sin(x), cos(x))`.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn sin_cos(self) -> (Self, Self);
 
     /// Returns the exponential of the number, minus 1, in a way that is
     /// accurate even if the number is close to zero.
-    #[unstable = "may be renamed"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be renamed")]
     fn exp_m1(self) -> Self;
     /// Returns the natural logarithm of the number plus 1 (`ln(1+n)`) more
     /// accurately than if the operations were performed separately.
-    #[unstable = "may be renamed"]
+    #[unstable(feature = "unnamed_feature", since = "1.0.0", reason = "may be renamed")]
     fn ln_1p(self) -> Self;
 
     /// Hyperbolic sine function.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn sinh(self) -> Self;
     /// Hyperbolic cosine function.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn cosh(self) -> Self;
     /// Hyperbolic tangent function.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn tanh(self) -> Self;
     /// Inverse hyperbolic sine function.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn asinh(self) -> Self;
     /// Inverse hyperbolic cosine function.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn acosh(self) -> Self;
     /// Inverse hyperbolic tangent function.
-    #[stable]
+    #[stable(feature = "grandfathered", since = "1.0.0")]
     fn atanh(self) -> Self;
 }
 
diff --git a/src/libstd/num/u16.rs b/src/libstd/num/u16.rs
index 7cb6a8ffe07..06773a37ab5 100644
--- a/src/libstd/num/u16.rs
+++ b/src/libstd/num/u16.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 16-bits integers (`u16` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "u16")]
 
 pub use core::u16::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/u32.rs b/src/libstd/num/u32.rs
index 43b01ddb16b..a58941b00f9 100644
--- a/src/libstd/num/u32.rs
+++ b/src/libstd/num/u32.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 32-bits integers (`u32` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "u32")]
 
 pub use core::u32::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/u64.rs b/src/libstd/num/u64.rs
index 79e7f237051..2a42382dd8f 100644
--- a/src/libstd/num/u64.rs
+++ b/src/libstd/num/u64.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 64-bits integer (`u64` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "u64")]
 
 pub use core::u64::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/u8.rs b/src/libstd/num/u8.rs
index 3da2fabe3f2..952c8c0347f 100644
--- a/src/libstd/num/u8.rs
+++ b/src/libstd/num/u8.rs
@@ -10,7 +10,7 @@
 
 //! Operations and constants for unsigned 8-bits integers (`u8` type)
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "u8")]
 
 pub use core::u8::{BITS, BYTES, MIN, MAX};
diff --git a/src/libstd/num/uint.rs b/src/libstd/num/uint.rs
index 0e12eff205f..58685b05981 100644
--- a/src/libstd/num/uint.rs
+++ b/src/libstd/num/uint.rs
@@ -14,7 +14,7 @@
 //! alpha cycle along with the development of clearer conventions
 //! around integer types.
 
-#![deprecated = "replaced by usize"]
+#![deprecated(feature = "oldstuff", since = "1.0.0", reason = "replaced by usize")]
 
 pub use core::uint::{BITS, BYTES, MIN, MAX};
 
diff --git a/src/libstd/num/uint_macros.rs b/src/libstd/num/uint_macros.rs
index f480a3b420f..786912f0028 100644
--- a/src/libstd/num/uint_macros.rs
+++ b/src/libstd/num/uint_macros.rs
@@ -8,7 +8,7 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#![unstable]
+#![unstable(feature = "unnamed_feature", since = "1.0.0")]
 #![doc(hidden)]
 #![allow(unsigned_negation)]
 
diff --git a/src/libstd/num/usize.rs b/src/libstd/num/usize.rs
index 74dd38e13c5..52601a92ed4 100644
--- a/src/libstd/num/usize.rs
+++ b/src/libstd/num/usize.rs
@@ -14,7 +14,7 @@
 //! new type will gradually take place over the alpha cycle along with
 //! the development of clearer conventions around integer types.
 
-#![stable]
+#![stable(feature = "grandfathered", since = "1.0.0")]
 #![doc(primitive = "usize")]
 
 pub use core::usize::{BITS, BYTES, MIN, MAX};