Add in the vtkm namespace an assert macro (technically VTKM_ASSERT) that
basically replicates the functionality of the POSIX assert macro. This
form of assert is set to replace the separate control/exection asserts.
It has been decided that an assert that throws an exception instead of
terminating the program is not all that great of a feature and it causes
some limitations on how it is used. The next commit will remove the
other forms of VTK-m assert.
This class holds a Vec and exposes some number of components. The class
is used when you need a Vec of a size that is not known at compile time
but that a maximum length of reasonable size is known.
C and C++ has a funny feature where operations on small integers (char
and short) actually promote the result to a 32 bit integer. Most often
in our code the result is pushed back to the same type, and picky compilers
can then give a warning about an implicit type conversion (that we
inevitably don't care about). Here are a lot of changes to suppress
the warnings.
For some reason when optimization was on with the Intel compiler it
was removing the loop in some instances of the templated MatrixTranspose
function. I inserted an empty assembly statement that prevents the
compiler from removing the loop but does not add any actual code. That
seems to fix the problem.
