[llvm] r216821 - Add a test for converting ArrayRef<T *> to ArrayRef<const T *>.

[David Blaikie]

On Sat, Aug 30, 2014 at 9:48 AM, Craig Topper <craig.topper at gmail.com>
wrote:

> Author: ctopper
> Date: Sat Aug 30 11:48:19 2014
> New Revision: 216821
>
> URL: http://llvm.org/viewvc/llvm-project?rev=216821&view=rev
> Log:
> Add a test for converting ArrayRef<T *> to ArrayRef<const T *>.
>

Could we use some static_asserts with type traits to check that other
things /aren't/ convertible?


>
> Modified:
>     llvm/trunk/unittests/ADT/ArrayRefTest.cpp
>
> Modified: llvm/trunk/unittests/ADT/ArrayRefTest.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ADT/ArrayRefTest.cpp?rev=216821&r1=216820&r2=216821&view=diff
>
> ==============================================================================
> --- llvm/trunk/unittests/ADT/ArrayRefTest.cpp (original)
> +++ llvm/trunk/unittests/ADT/ArrayRefTest.cpp Sat Aug 30 11:48:19 2014
> @@ -63,4 +63,14 @@ TEST(ArrayRefTest, EmptyEquals) {
>    EXPECT_TRUE(ArrayRef<unsigned>() == ArrayRef<unsigned>());
>  }
>
> +TEST(ArrayRefTest, ConstConvert) {
> +  int buf[4];
> +  for (int i = 0; i < 4; ++i)
> +    buf[i] = i;
> +
> +  static int *A[] = {&buf[0], &buf[1], &buf[2], &buf[3]};
> +  ArrayRef<const int *> a((ArrayRef<int *>(A)));
> +  a = ArrayRef<int *>(A);
> +}
> +
>  } // end anonymous namespace
>
>
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