For some reason on my Visual Studio 2013 the definition of
VTKM_STATIC_ASSERT (without the message) did not report where the actual
error message happened. This change seems to get Visual Studio to report
the location of the failed assert with a reasonable message.
The current CUDA compiler is crashing when using _Pragma in code blocks,
which were being used with clang on apple. Turn these off when compiling
with CUDA.
This is to be used in place of BOOST_STATIC_ASSERT so that we can
control its implementation.
The implementation is designed to fix the issue where the latest XCode
clang compiler gives a warning about a unused typedefs when the boost
static assert is used within a function. (This warning also happens when
using the C++11 static_assert keyword.) You can suppress this warning
with _Pragma commands, but _Pragma commands inside a block is not
supported in GCC. The implementation of VTKM_STATIC_ASSERT handles all
current cases.
