These warnings are triggered by perfectly valid code using std::string.
They're particularly bad when --enable-fully-dynamic-string is used,
because even std::string().begin() will give a warning.
Use pragmas to stop the troublesome warnings for copies done by
std::char_traits.
libstdc++-v3/ChangeLog:
PR libstdc++/103332
PR libstdc++/102958
PR libstdc++/103483
* include/bits/char_traits.h: Suppress stringop and array-bounds
warnings.
{
_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.
*
} // namespace __detail
#endif // C++20
+#pragma GCC diagnostic push
+
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace