f no-std -> core2

Author: devrandom

Cargo.toml

@@ -17,10 +17,10 @@ path = "src/lib.rs"
 [features]
 default = ["std"]
 std = []
-# The no-std feature enables core2 and the alloc feature adds the alloc crate to that.
-# You can still just disable std by disabling default features, without enabling these two.
-no-std = ["core2"]
-alloc = ["core2/alloc", "no-std"]
+# If you disable std, you can still use a Write trait via the core2 feature.
+# You can also use ToHex via the alloc feature, as it requires Vec/String.
+# And you can still just disable std by disabling default features, without enabling these two.
+alloc = ["core2/alloc"]
 serde-std = ["serde/std"]
 unstable = []  # for benchmarking
 

embedded/Cargo.toml

@@ -14,7 +14,7 @@ cortex-m-rt = "0.6.10"
 cortex-m-semihosting = "0.3.3"
 panic-halt = "0.2.0"
 alloc-cortex-m = { version = "0.4.1", optional = true }
-bitcoin_hashes = { path="../", default-features = false, features = ["no-std"] }
+bitcoin_hashes = { path="../", default-features = false, features = ["core2"] }
 core2 = { version = "0.3.0-alpha.1", default_features = false }
 
 [[bin]]

src/lib.rs

@@ -38,7 +38,7 @@
 #[cfg(all(test, feature = "unstable"))] extern crate test;
 
 #[cfg(any(test, feature="std"))] extern crate core;
-#[cfg(feature="no-std")] extern crate core2;
+#[cfg(feature="core2")] extern crate core2;
 #[cfg(any(feature = "std", feature = "alloc"))] extern crate alloc;
 #[cfg(feature="serde")] pub extern crate serde;
 #[cfg(all(test,feature="serde"))] extern crate serde_test;
@@ -55,8 +55,7 @@ pub mod _export {
 
 #[macro_use] mod util;
 #[macro_use] pub mod serde_macros;
-#[cfg(any(feature = "std", feature = "no-std"))]
-mod impls;
+#[cfg(any(feature = "std", feature = "core2"))] mod impls;
 pub mod error;
 pub mod hex;
 pub mod hash160;