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of_add
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Full name
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pfc_n_cst_tree.of_add
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Access
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public
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Extend of
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integer
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Return value
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integer
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Prototype
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public function integer of_add(n_cst_treenode)
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Name
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Datatype
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lb_height
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boolean
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public function integer of_add (n_cst_treenode anv_currentnode);//////////////////////////////////////////////////////////////////////////////
//
// Function: of_add
//
// Access: public
//
// Arguments :
// anv_currentnode the node to be added to the tree
//
// Returns: integer
// 1 : node was added
// 0 : node with this key already exists in the tree, so node was not added
// -1 : node was not added due to an error
// -2 : node to be added is invalid
//
// Description:
// Adds the passed node to the tree
//
//////////////////////////////////////////////////////////////////////////////
//
// Revision History
//
// Version
// 6.0 Initial version
//
//////////////////////////////////////////////////////////////////////////////
//
// Copyright © 1996-1997 Sybase, Inc. and its subsidiaries. All rights reserved.
// Any distribution of the PowerBuilder Foundation Classes (PFC)
// source code by other than Sybase, Inc. and its subsidiaries is prohibited.
//
//////////////////////////////////////////////////////////////////////////////
boolean lb_height
setpointer(hourglass!)
// Validate parameters.
if isnull(anv_currentnode) or not isvalid(anv_currentnode) then return -2
// If necessarey, create the comparison object.
if isnull(inv_compare) or not isvalid(inv_compare) then
// take the default comparision service
inv_compare = create n_cst_treenodecompare
end if
// call the recursive function of_addnode
lb_height = false
return of_addnode(anv_currentnode,inv_root,lb_height)
end function
Name
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Owner
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systemfunctions.isnull |
systemfunctions
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systemfunctions.isvalid |
systemfunctions
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systemfunctions.setpointer |
systemfunctions
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pfc_n_cst_tree.of_addnode |
pfc_n_cst_tree
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