[Lldb-commits] [lldb] [LLDB] Avoid crashes when inspecting MSVC STL types (PR #140761)

[via lldb-commits]

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+// clang-format off
+
+// REQUIRES: target-windows
+// RUN: %build --compiler=clang-cl -o %t.exe --std c++20 -- %s
+// RUN: env LLDB_USE_NATIVE_PDB_READER=1 %lldb -f %t.exe -o "b main" -o "run" -o "fr v" -o c | FileCheck %s
+
+#include <bitset>
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Nerixyz wrote:

> Tests for libc++ on Windows (which AFAIU, isn't the recommended configuration on Windows but is definitely used in the wild)

libstdc++ and (sometimes) libc++ are used on MinGW (and probably Cygwin). There, MS' STL can't be used.

One other thing: https://lldb.llvm.org/use/variable.html#categories mentions that the formatters for libc++ and libstdc++ would be in different categories (`libcxx`, `gnu-libstdc++`), but (at least the built-in ones) are [all put in the `cplusplus` category](https://github.com/llvm/llvm-project/blob/76a55d3860f76c15ca51d188e10e4352fecf61e9/lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp#L1731-L1737).



https://github.com/llvm/llvm-project/pull/140761