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SdaiBoolean edmiTestAggrByIterator(SdaiIterator iterId);
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Checks if the ARRAY element pointed to by the specified iterator is set (has a valid value) or unset (indeterminate).
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Returns sdaiTRUE when the specified ARRAY element has an assigned value, else sdaiFALSE is returned.
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An ARRAY element can be assigned a value by one of the following operations: sdaiPutAggrByIndex , sdaiPutAggrByIterator , edmiWriteAggrElements . An assigned ARRAY element value can be removed, i.e. unset by one the operations sdaiUnsetAggrByIndex or sdaiUnsetAggrByIterator .
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This operation is only applicable for ARRAY aggregates.
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The model that holds the actual aggregate must be open before this function can be successfully performed.
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Arguments
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| Type | Name | Comment | |
| SdaiIterator | iterId | A numeric iteratorID that uniquely identifies an iterator in the actual EDMserver. The current element of the iterator will be the actual aggregate element to test for existing value. | The iteratorID is defined when the iterator is created by the sdaiCreateIterator function. |
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Return Value
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| Type | Comment |
| SdaiBoolean | A SdaiBoolean value that has the following value:
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Options
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Example
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SdaiArray arrayId; SdaiIterator iterId; SdaiBoolean isSet; ... iterId = sdaiCreateIterator(arrayId); |
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if (! iterId) { |
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/* Error in operation */ |
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printf("\nError in sdaiCreateIterator: %s", |
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edmiGetErrorText(sdaiErrorQuery())); |
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goto error; |
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} sdaiNext(iterId); |
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isSet = edmiTestAggrByIterator(iterId); |
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if (isSet == sdaiTRUE) { |
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/* Array element is set */ |
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. . . |
See also
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