[PATCH] D77621: ADT: SmallVector size/capacity use word-size integers when elements are small

[Shoaib Meenai via Phabricator via cfe-commits]

smeenai added inline comments.


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Comment at: llvm/include/llvm/ADT/SmallVector.h:52
+  // The maximum size depends on size_type used.
+  static constexpr size_t SizeMax() {
+    return std::numeric_limits<Size_T>::max();
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browneee wrote:
> dexonsmith wrote:
> > STL data structures have a name for this called `max_size()`.  Should we be consistent with that?
> Good question.
> 
> This brought my attention to the existing SmallVectorTemplateCommon::max_size() which also needed to be updated.
> I'm going to name this new function SizeTypeMax to best describe what it provides, and leave it separate from max_size().
Was it intentional to make this return a `size_t` rather than a `Size_T`? Clang gives a truncation warning on 32-bit platforms when you try to instantiate the template with `uint64_t` as a result.


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  https://reviews.llvm.org/D77621/new/

https://reviews.llvm.org/D77621