base.h: Added plus and multiplies functor for differently typed objects.

base.h: Added plus and multiplies functor for differently typed objects.

2007-10-08  Johannes Singler  <singler@ira.uka.de>

	* include/parallel/base.h: Added plus and multiplies functor
       for differently typed objects.
	* include/parallel/numeric: Use it.
	* include/parallel/for_each_selectors.h: Allowed different types.
	* include/parallel/partial_sum.h: Fixed return value.
	* testsuite/26_numerics/accumulate/1.cc: Tests for accumulate.
	* testsuite/26_numerics/inner_product/1.cc: Tests for inner_product.

From-SVN: r129140