{
{   This request evaluates an SCL expression.
{
{       CLP$EVALUATE_EXPRESSION (EXPRESSION, TYPE_SPECIFICATION, WORK_AREA,
{         RESULT, STATUS)
{
{ EXPRESSION: (input)  This parameter specifies the expression to be
{       evaluated.
{
{ TYPE_SPECIFICATION: (input)  This parameter specifies the data type the
{       expression is expected to result in.
{
{ WORK_AREA: (input, output)  This parameter specifies an area of storage that
{       will be used to construct the expression's result value.  The current
{       position of this sequence pointer is updated to reflect the amount of
{       storage used by the request.  The expression's result value is
{       completely contained within the used part of this sequence.
{
{ RESULT: (output)  This parameter specifies the expression's result value.
{
{ STATUS: (output)  This parameter specifies the request status.
{       CONDITIONS:
{
