[clang-tools-extra] [clang-tidy] Warn on use of std::get_temporary_buffer (PR #176191)

[Donát Nagy via cfe-commits]

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@@ -97,6 +98,9 @@ static StringRef getRationaleFor(StringRef FunctionName) {
       .Cases({"rewind", "setbuf"}, "has no error detection")
       .Case("vfork", "is insecure as it can lead to denial of service "
                      "situations in the parent process")
+      .Case("get_temporary_buffer",
+            "is bugprone, has no performance advantage, was deprecated in "
+            "C++17 and removed in C++20")
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NagyDonat wrote:

I agree that it would be nice to include more details, but I felt that the message is already a bit too long.

However, I'm happy to extend the message if the consensus is that  it's acceptable.

https://github.com/llvm/llvm-project/pull/176191