LLVM / project / b8d1f3d / [Clang] Fix an integer overflow issue in computing CTAD's parameter depth (#128704)

LLVM/project b8d1f3d — clang/lib/Sema SemaTemplateDeductionGuide.cpp, clang/test/SemaTemplate deduction-guide.cpp

18 days ago by Younan Zhang via GitHub on ⎇

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[Clang] Fix an integer overflow issue in computing CTAD's parameter depth (#128704)

There were some cases where we computed incorrect template parameter
depths for synthesized CTAD, invalid as they might be, we still
shouldn't crash anyway.

Technically the only scenario in which the inner function template's
depth is 0 is when it lives within an explicit template specialization,
where the template parameter list is empty.

Fixes https://github.com/llvm/llvm-project/issues/128691

Delta		File
+32	-0	clang/test/SemaTemplate/deduction-guide.cpp
+8	-1	clang/lib/Sema/SemaTemplateDeductionGuide.cpp
+40	-1	2 files

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