IBM Visualization Data Explorer Programmer's Reference

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DXInitGetNextHashElement

Function

Initializes a pointer for DXGetNextHashElement.

Syntax

#include <dx/dx.h>

Error DXInitGetNextHashElement(HashTable hashtable)

Functional Details

Generally, a program retrieves entries from a hash table by calling DXQueryHashElement to access arbitrary elements, but sometimes it is convenient to access all elements, regardless of their order. In that case, the program calls DXInitGetNextHashElement to initiate this indexing by initializing the pointer that DXGetNextHashElement uses for iterating hashtable. DXInitGetNextElement initializes the required pointer to zero (0).

Return Value

Returns OK or returns ERROR and sets an error code.

See Also

DXCreateHash, DXGetNextHashElement, DXInsertHashElement, DXQueryHashElement

14.5 , "Hashing".


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