[PATCH] D97921: [ADT][NFC] Use `size_t` type for index in `indexed_accessor_range`

[Vladislav Vinogradov via Phabricator via llvm-commits]

vinograd47 created this revision.
vinograd47 added a reviewer: rriddle.
Herald added subscribers: dexonsmith, arphaman.
vinograd47 requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

It makes it consistent with `size()` method return type and with
STL-like containers API.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97921

Files:
  llvm/include/llvm/ADT/STLExtras.h


Index: llvm/include/llvm/ADT/STLExtras.h
===================================================================
--- llvm/include/llvm/ADT/STLExtras.h
+++ llvm/include/llvm/ADT/STLExtras.h
@@ -1114,9 +1114,9 @@
 
   iterator begin() const { return iterator(base, 0); }
   iterator end() const { return iterator(base, count); }
-  ReferenceT operator[](unsigned index) const {
+  ReferenceT operator[](size_t index) const {
     assert(index < size() && "invalid index for value range");
-    return DerivedT::dereference_iterator(base, index);
+    return DerivedT::dereference_iterator(base, static_cast<ptrdiff_t>(index));
   }
   ReferenceT front() const {
     assert(!empty() && "expected non-empty range");


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