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X-Hacker.org- CA-Clipper 5.2 . Technical Reference - <b>evalblock()</b>
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evalBlock()
Evaluate a code block
------------------------------------------------------------------------------
Prototype
ERRCODE evalBlock(
WORKAREAP wa,
ITEM block
)
Arguments
wa is a pointer to self.
block is the code block to be evaluated.
Description
Evaluates a specified code block.
Default Behavior
Evaluates the block specified by the Item block, placing the resultant
Item in wa->result. The returned error code indicates success or
failure.
Warning! If block is not a code block, a BASE/1004 "No exported
method" error is generated.
Warning! The Item in wa->result must be deallocated later.
Implementation Notes
. You should save any global state necessary to your driver that
might be modified by the evaluated code block (i.e., any CA-Clipper
code), by calling SUPEREVALBLOCK(). Restore the state after
implementing the evalBlock() method.
Files: Header file is Rdd.api.
See Also: WORKAREA
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