Using memcpy or memmove instead of for loop in liboctave/array/dim-vector.h

[PrasannaKumar Muralidharan]

Hi Octave maintainers,

In liboctave/array/dim-vector.h clonerep and resizerep functions are
defined. They use for loop for copying data. Is it possible to use
memcpy or memmove instead? The mem* function may be faster than for
loop as its implementation can use SIMD instructions when possible.

Will it be useful or does it make sense?

Thanks and Regards,
PrasannaKumar