Rollup merge of rust-lang#146277 - Kivooeo:u64-unlock, r=scottmcm

Zalathar · web-flow · commit 87ac7679a254 · 2025-10-14T15:08:20.000+11:00
Enable `u64` limbs in `core::num::bignum` Since `u128` is stable now, I guess, we can safely add this, not sure if this requires tests or anything cc rust-lang#137887
diff --git a/library/core/src/num/bignum.rs b/library/core/src/num/bignum.rs
@@ -59,8 +59,7 @@ impl_full_ops! {
     u8:  add(intrinsics::u8_add_with_overflow),  mul/div(u16);
     u16: add(intrinsics::u16_add_with_overflow), mul/div(u32);
     u32: add(intrinsics::u32_add_with_overflow), mul/div(u64);
-    // See RFC #521 for enabling this.
-    // u64: add(intrinsics::u64_add_with_overflow), mul/div(u128);
+    u64: add(intrinsics::u64_add_with_overflow), mul/div(u128);
 }
 
 /// Table of powers of 5 representable in digits. Specifically, the largest {u8, u16, u32} value

Original file line number	Diff line number	Diff line change
`@@ -59,8 +59,7 @@ impl_full_ops! {`
`59`	`59`	`u8: add(intrinsics::u8_add_with_overflow), mul/div(u16);`
`60`	`60`	`u16: add(intrinsics::u16_add_with_overflow), mul/div(u32);`
`61`	`61`	`u32: add(intrinsics::u32_add_with_overflow), mul/div(u64);`
`62`		`- // See RFC #521 for enabling this.`
`63`		`- // u64: add(intrinsics::u64_add_with_overflow), mul/div(u128);`
	`62`	`+ u64: add(intrinsics::u64_add_with_overflow), mul/div(u128);`
`64`	`63`	`}`
`65`	`64`
`66`	`65`	`/// Table of powers of 5 representable in digits. Specifically, the largest {u8, u16, u32} value`