[libcxx-commits] [libcxx] [libc++] Remove unnecessary division and modulo operations in bitset (PR #121312)

[Louis Dionne via libcxx-commits]

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@@ -453,7 +454,10 @@ private:
   _LIBCPP_HIDE_FROM_ABI
   _LIBCPP_CONSTEXPR_SINCE_CXX20 explicit __bit_iterator(__storage_pointer __s, unsigned __ctz) _NOEXCEPT
       : __seg_(__s),
-        __ctz_(__ctz) {}
+        __ctz_(__ctz) {
+    _LIBCPP_ASSERT_VALID_INPUT_RANGE(
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ldionne wrote:

I think this should be an internal assertion too. This is a private constructor, only called from within libc++ itself.

https://github.com/llvm/llvm-project/pull/121312