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A comment on C++17 creates a practical use of the backward array index operator. Parent comment

Re:C++17 creates a practical use of the backward array index... by leni536 on Tuesday April 04, 2023 @01:52AM (#35435631)
Apart from sequencing rules, a[i] may also differ in value category. If one of the operands is an array rvalue then the result is also rvalue. *(a + i) can't propagate value category this way, dereferencing always produces an lvalue.
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