Use the appropriate function for verifying double precision values in
the `pipe_readwrite_double` test.
Change `verify_readwrite_double` to use `cl_long`, as `long long int`
could be wider than 64 bits which would cause out-of-bound reads.
This leaves no functional differences between
`verify_readwrite_double` and `verify_readwrite_long`.
Found by compiling with `-Wunused-function`, which flagged
`verify_readwrite_double` as unused.
Signed-off-by: Sven van Haastregt <sven.vanhaastregt@arm.com>
Signed-off-by: Sven van Haastregt <sven.vanhaastregt@arm.com>
35cab9c85b