[vsipl++] [patch] Fix png example failure, ICC fix

[Stefan Seefeld]

Jules Bergmann wrote:
> This patch should fix the build failure with the png example program.
> 
> The problem was in the dispatch layer that re-evaluates a dense
> multi-dim expression as a 1-dim expression.  It has to "re-dimension"
> the expression template tree.  For Unary_expr_blocks, it was copying the
> operand block, but not the unary functor.  For most unary_expr_blocks
> this is OK, the unary functor's default constructor is fine.  However
> for unary_expr_blocks associated with user-defined elementwise functions
> (such as PNG's swap_read_green), this is not OK.  The functor needs to
> be copied.

Aha ! Thanks for the quick fix !

		Stefan

-- 
Stefan Seefeld
CodeSourcery
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