Merge #224

224: Convert between int and bytes #189 r=cuviper a=kaidokert

Picking up #103 from `@flier` to rebase and factor in feedback. Making a quick draft first

Co-authored-by: Kaido Kert <kaidokert@gmail.com>
Co-authored-by: Josh Stone <cuviper@gmail.com>
Co-authored-by: kaidokert <kaidokert@gmail.com>

build.rs

@@ -17,5 +17,8 @@ fn main() {
     }
     ac.emit_expression_cfg("1f64.is_subnormal()", "has_is_subnormal");
 
+    ac.emit_expression_cfg("1u32.to_ne_bytes()", "has_int_to_from_bytes");
+    ac.emit_expression_cfg("3.14f64.to_ne_bytes()", "has_float_to_from_bytes");
+
     autocfg::rerun_path("build.rs");
 }

src/lib.rs

@@ -35,6 +35,7 @@ pub use crate::float::FloatConst;
 pub use crate::cast::{cast, AsPrimitive, FromPrimitive, NumCast, ToPrimitive};
 pub use crate::identities::{one, zero, One, Zero};
 pub use crate::int::PrimInt;
+pub use crate::ops::bytes::{FromBytes, ToBytes};
 pub use crate::ops::checked::{
     CheckedAdd, CheckedDiv, CheckedMul, CheckedNeg, CheckedRem, CheckedShl, CheckedShr, CheckedSub,
 };