[Bug middle-end/103483] context-sensitive ranges change triggers stringop-overread

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103483

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
I have a patch:

--- a/libstdc++-v3/include/bits/char_traits.h
+++ b/libstdc++-v3/include/bits/char_traits.h
@@ -54,6 +54,11 @@ namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
 {
 _GLIBCXX_BEGIN_NAMESPACE_VERSION

+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstringop-overflow"
+#pragma GCC diagnostic ignored "-Wstringop-overread"
+#pragma GCC diagnostic ignored "-Warray-bounds"
+
   /**
    *  @brief  Mapping from character type to associated types.
    *
@@ -990,6 +995,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
   } // namespace __detail
 #endif // C++20

+#pragma GCC diagnostic push
+
 _GLIBCXX_END_NAMESPACE_VERSION
 } // namespace