Merge branch 'libcore'

8 files changed, 59 insertions, 10 deletions

diff --git a/libcore/clone.rs b/libcore/clone.rs
index ad2a205..a9c5684 100644
--- a/libcore/clone.rs
+++ b/libcore/clone.rs
@@ -116,7 +116,9 @@ clone_impl! { u16 }
 clone_impl! { u32 }
 clone_impl! { u64 }
 
+#[cfg(not(disable_float))]
 clone_impl! { f32 }
+#[cfg(not(disable_float))]
 clone_impl! { f64 }
 
 clone_impl! { () }
diff --git a/libcore/default.rs b/libcore/default.rs
index 12c4a5c..4ec4fb6 100644
--- a/libcore/default.rs
+++ b/libcore/default.rs
@@ -160,5 +160,7 @@ default_impl! { i16, 0 }
 default_impl! { i32, 0 }
 default_impl! { i64, 0 }
 
+#[cfg(not(disable_float))]
 default_impl! { f32, 0.0f32 }
+#[cfg(not(disable_float))]
 default_impl! { f64, 0.0f64 }
diff --git a/libcore/fmt/mod.rs b/libcore/fmt/mod.rs
index 0c824b5..8b92561 100644
--- a/libcore/fmt/mod.rs
+++ b/libcore/fmt/mod.rs
@@ -17,6 +17,7 @@ use prelude::v1::*;
 use cell::{UnsafeCell, Cell, RefCell, Ref, RefMut, BorrowState};
 use marker::PhantomData;
 use mem;
+#[cfg(not(disable_float))]
 use num::flt2dec;
 use ops::Deref;
 use result;
@@ -1023,6 +1024,7 @@ impl<'a> Formatter<'a> {
     /// Takes the formatted parts and applies the padding.
     /// Assumes that the caller already has rendered the parts with required precision,
     /// so that `self.precision` can be ignored.
+    #[cfg(not(disable_float))]
     fn pad_formatted_parts(&mut self, formatted: &flt2dec::Formatted) -> Result {
         if let Some(mut width) = self.width {
             // for the sign-aware zero padding, we render the sign first and
@@ -1059,6 +1061,7 @@ impl<'a> Formatter<'a> {
         }
     }
 
+    #[cfg(not(disable_float))]
     fn write_formatted_parts(&mut self, formatted: &flt2dec::Formatted) -> Result {
         fn write_bytes(buf: &mut Write, s: &[u8]) -> Result {
             buf.write_str(unsafe { str::from_utf8_unchecked(s) })
@@ -1447,6 +1450,7 @@ impl<'a, T: ?Sized> Pointer for &'a mut T {
     }
 }
 
+#[cfg(not(disable_float))]
 // Common code of floating point Debug and Display.
 fn float_to_decimal_common<T>(fmt: &mut Formatter, num: &T, negative_zero: bool) -> Result
     where T: flt2dec::DecodableFloat
@@ -1471,6 +1475,7 @@ fn float_to_decimal_common<T>(fmt: &mut Formatter, num: &T, negative_zero: bool)
     fmt.pad_formatted_parts(&formatted)
 }
 
+#[cfg(not(disable_float))]
 // Common code of floating point LowerExp and UpperExp.
 fn float_to_exponential_common<T>(fmt: &mut Formatter, num: &T, upper: bool) -> Result
     where T: flt2dec::DecodableFloat
@@ -1524,7 +1529,9 @@ macro_rules! floating { ($ty:ident) => {
         }
     }
 } }
+#[cfg(not(disable_float))]
 floating! { f32 }
+#[cfg(not(disable_float))]
 floating! { f64 }
 
 // Implementation of Display/Debug for various core types
diff --git a/libcore/intrinsics.rs b/libcore/intrinsics.rs
index 45890cd..dd564b7 100644
--- a/libcore/intrinsics.rs
+++ b/libcore/intrinsics.rs
@@ -428,7 +428,10 @@ extern "rust-intrinsic" {
     pub fn volatile_load<T>(src: *const T) -> T;
     /// Perform a volatile store to the `dst` pointer.
     pub fn volatile_store<T>(dst: *mut T, val: T);
+}
 
+#[cfg(not(disable_float))]
+extern "rust-intrinsic" {
     /// Returns the square root of an `f32`
     pub fn sqrtf32(x: f32) -> f32;
     /// Returns the square root of an `f64`
@@ -545,8 +548,9 @@ extern "rust-intrinsic" {
     /// Float remainder that allows optimizations based on algebraic rules.
     /// May assume inputs are finite.
     pub fn frem_fast<T>(a: T, b: T) -> T;
+}
 
-
+extern "rust-intrinsic" {
     /// Returns the number of bits set in an integer type `T`
     pub fn ctpop<T>(x: T) -> T;
 
diff --git a/libcore/lib.rs b/libcore/lib.rs
index fa5e905..e12c690 100644
--- a/libcore/lib.rs
+++ b/libcore/lib.rs
@@ -107,7 +107,9 @@ mod uint_macros;
 #[path = "num/u32.rs"]  pub mod u32;
 #[path = "num/u64.rs"]  pub mod u64;
 
+#[cfg(not(disable_float))]
 #[path = "num/f32.rs"]   pub mod f32;
+#[cfg(not(disable_float))]
 #[path = "num/f64.rs"]   pub mod f64;
 
 #[macro_use]
diff --git a/libcore/num/flt2dec/decoder.rs b/libcore/num/flt2dec/decoder.rs
index 6265691..0a28a14 100644
--- a/libcore/num/flt2dec/decoder.rs
+++ b/libcore/num/flt2dec/decoder.rs
@@ -12,6 +12,7 @@
 
 use prelude::v1::*;
 
+#[cfg(not(disable_float))]
 use {f32, f64};
 use num::{Float, FpCategory};
 
@@ -57,10 +58,12 @@ pub trait DecodableFloat: Float + Copy {
     fn min_pos_norm_value() -> Self;
 }
 
+#[cfg(not(disable_float))]
 impl DecodableFloat for f32 {
     fn min_pos_norm_value() -> Self { f32::MIN_POSITIVE }
 }
 
+#[cfg(not(disable_float))]
 impl DecodableFloat for f64 {
     fn min_pos_norm_value() -> Self { f64::MIN_POSITIVE }
 }
diff --git a/libcore/num/mod.rs b/libcore/num/mod.rs
index 589ac90..e5f0469 100644
--- a/libcore/num/mod.rs
+++ b/libcore/num/mod.rs
@@ -58,7 +58,9 @@ impl<T: fmt::Display> fmt::Display for Wrapping<T> {
 mod wrapping;
 
 // All these modules are technically private and only exposed for libcoretest:
+#[cfg(not(disable_float))]
 pub mod flt2dec;
+#[cfg(not(disable_float))]
 pub mod dec2flt;
 pub mod bignum;
 pub mod diy_float;
@@ -125,6 +127,7 @@ macro_rules! zero_one_impl_float {
         }
     )*)
 }
+#[cfg(not(disable_float))]
 zero_one_impl_float! { f32 f64 }
 
 macro_rules! checked_op {
@@ -2239,6 +2242,7 @@ pub enum FpCategory {
 #[unstable(feature = "core_float",
            reason = "stable interface is via `impl f{32,64}` in later crates",
            issue = "32110")]
+#[cfg(not(disable_float))]
 pub trait Float: Sized {
     /// Returns the NaN value.
     #[unstable(feature = "float_extras", reason = "needs removal",
@@ -2477,6 +2481,7 @@ impl fmt::Display for ParseIntError {
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]
+#[cfg(not(disable_float))]
 pub use num::dec2flt::ParseFloatError;
 
 // Conversion traits for primitive integer and float types
@@ -2524,6 +2529,9 @@ impl_from! { u32, i64 }
 // they fit in the significand, which is 24 bits in f32 and 53 bits in f64.
 // Lossy float conversions are not implemented at this time.
 
+#[cfg(not(disable_float))]
+mod _int_flot_conv {
+use convert::From;
 // Signed -> Float
 impl_from! { i8, f32 }
 impl_from! { i8, f64 }
@@ -2540,3 +2548,4 @@ impl_from! { u32, f64 }
 
 // Float -> Float
 impl_from! { f32, f64 }
+}
diff --git a/libcore/ops.rs b/libcore/ops.rs
index a2f8423..35374db 100644
--- a/libcore/ops.rs
+++ b/libcore/ops.rs
@@ -215,7 +215,9 @@ macro_rules! add_impl {
     )*)
 }
 
-add_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+add_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+add_impl! { f32 f64 }
 
 /// The `Sub` trait is used to specify the functionality of `-`.
 ///
@@ -268,7 +270,9 @@ macro_rules! sub_impl {
     )*)
 }
 
-sub_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+sub_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+sub_impl! { f32 f64 }
 
 /// The `Mul` trait is used to specify the functionality of `*`.
 ///
@@ -321,7 +325,9 @@ macro_rules! mul_impl {
     )*)
 }
 
-mul_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+mul_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+mul_impl! { f32 f64 }
 
 /// The `Div` trait is used to specify the functionality of `/`.
 ///
@@ -392,6 +398,7 @@ macro_rules! div_impl_float {
     )*)
 }
 
+#[cfg(not(disable_float))]
 div_impl_float! { f32 f64 }
 
 /// The `Rem` trait is used to specify the functionality of `%`.
@@ -463,6 +470,7 @@ macro_rules! rem_impl_float {
     )*)
 }
 
+#[cfg(not(disable_float))]
 rem_impl_float! { f32 f64 }
 
 /// The `Neg` trait is used to specify the functionality of unary `-`.
@@ -530,7 +538,9 @@ macro_rules! neg_impl_unsigned {
 }
 
 // neg_impl_unsigned! { usize u8 u16 u32 u64 }
-neg_impl_numeric! { isize i8 i16 i32 i64 f32 f64 }
+neg_impl_numeric! { isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+neg_impl_numeric! { f32 f64 }
 
 /// The `Not` trait is used to specify the functionality of unary `!`.
 ///
@@ -928,7 +938,9 @@ macro_rules! add_assign_impl {
     )+)
 }
 
-add_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+add_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+add_assign_impl! { f32 f64 }
 
 /// The `SubAssign` trait is used to specify the functionality of `-=`.
 ///
@@ -972,7 +984,9 @@ macro_rules! sub_assign_impl {
     )+)
 }
 
-sub_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+sub_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+sub_assign_impl! { f32 f64 }
 
 /// The `MulAssign` trait is used to specify the functionality of `*=`.
 ///
@@ -1016,7 +1030,9 @@ macro_rules! mul_assign_impl {
     )+)
 }
 
-mul_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+mul_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+mul_assign_impl! { f32 f64 }
 
 /// The `DivAssign` trait is used to specify the functionality of `/=`.
 ///
@@ -1060,7 +1076,9 @@ macro_rules! div_assign_impl {
     )+)
 }
 
-div_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+div_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+div_assign_impl! { f32 f64 }
 
 /// The `RemAssign` trait is used to specify the functionality of `%=`.
 ///
@@ -1104,7 +1122,9 @@ macro_rules! rem_assign_impl {
     )+)
 }
 
-rem_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 f32 f64 }
+rem_assign_impl! { usize u8 u16 u32 u64 isize i8 i16 i32 i64 }
+#[cfg(not(disable_float))]
+rem_assign_impl! { f32 f64 }
 
 /// The `BitAndAssign` trait is used to specify the functionality of `&=`.
 ///