[BUG]: Sample Code in CUB README and docs does not compile

[pauleonix]

Is this a duplicate?

• I confirmed there appear to be no duplicate issues for this bug and that I agree to the Code of Conduct

Type of Bug

Compile-time Error

Component

CUB

Describe the bug

The code was taken from cub/examples/block/example_block_radix_sort.cu but slightly modified. The modified version is missing cub:: in two locations for it to compile.

Bug found by Zhixiong Xiao on StackOverflow.com

How to Reproduce

1. Take code from CUB's README.md
2. Try to compile it.

Expected behavior

It should compile without errors.

Reproduction link

https://cuda.godbolt.org/z/o7ba9f388

Operating System

No response

nvidia-smi output

No response

NVCC version

No response

[pauleonix]

Adding an instantiation of the kernel shows even more problems:
https://cuda.godbolt.org/z/fh94PnzqM

int * has to be replaced with int in

typedef cub::BlockLoad<
      int*, BLOCK_THREADS, ITEMS_PER_THREAD, BLOCK_LOAD_TRANSPOSE> BlockLoadT;

and the BlockStore instantiation as well.

This one is only wrong in cub/docs/index.rst, not in cub/README.md.