================
@@ -37,9 +37,10 @@ struct __fn {
_LIBCPP_ASSERT_UNCATEGORIZED(!bool(std::invoke(__comp, std::invoke(__proj,
__high), std::invoke(__proj, __low))),
"Bad bounds passed to std::ranges::clamp");
- if (std::invoke(__comp, std::invoke(__proj, __value), std::invoke(__proj,
__low)))
+ auto&& __projected = std::invoke(__proj, __value);
----------------
timsong-cpp wrote:
This is always dangling no matter how you do it. This isn't
`__proj(__something)`, it's `std::invoke(__proj, __something)`. No temporary is
created for the call to `std::invoke` itself, that just binds a bunch of
references. The full-expression with the temporary is somewhere inside the
`std::invoke` machinery, and the temporary is destroyed by the time
`std::invoke` returns.
https://github.com/llvm/llvm-project/pull/68413
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