else — Alternative of conditional statement.
else( : : : )
else continues after an if or elseif block with
an alternative block.
If the conditions of all corresponding if or elseif blocks
evaluated to 'false' (0), i.e., none of the corresponding
if or elseif blocks has been executed, the following
else block is executed.
else (as operator) always returns 2 (H_MSG_TRUE).
Foundation