> Slice index expressions accept any integer type. Integer subtypes can be defined, but there is no way to define a slice type that is legally indexed with only

> Slice index expressions accept any integer type. Integer subtypes can be defined, but there is no way to define a slice type that is legally indexed with only that defined type. What actually-used language did this in the 70s? What other major languages offer this today? I know it's useful, but dunking on Go for features only C++ (and Rust?) have is offensively far from GP's claim.