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EdmiError edmiValueUnique(SdaiAggr aggr,
SdaiLogical *result);
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Implements the Express built in function Value_Unique as defined in section 15.29 Value_unique – uniqueness function; in ISO 10303-11:1994(E) : The EXPRESS Language Reference Manual.
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The Value_Unique function returns a SdaiLogical value depending on whether or not the elements in the specified <aggr> are value unique or not. This operation uses value comparison (deep comparison).
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This operation is only applicable on data models. The actual data model must be open before this operation can be successfully performed.
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Arguments
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| Type | Name | Comment | |
| SdaiAggr | aggr | A numeric aggregateID that uniquely identifies the aggregate of interest in the EDMdatabase. | The aggregateID is returned when the aggregate is created or it can be retrieved with an EDMinterface get operation. |
| SdaiLogical | result | Address of a SdaiLogical variable that will receive the result of the Value_Unique operation. The returned result is as follows:
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Return Value
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Options
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Example
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EdmiError rstat; SdaiAggr aggr; SdaiLogical result; . . . if (rstat = edmiValueUnique (aggr, &result)) { /* Error in operation */ printf("\nError: %s in edmiValueUnique \n", |
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edmiGetErrorText(rstat)); |
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goto error; |
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} switch (result) { |
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case sdaiTRUE: |
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. . . /* Aggregate elements are value unique */ |
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break; |
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case sdaiFALSE: |
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. . . /* Aggregate elements are not value unique */ |
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break; |
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default: |
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. . . /* Unpredictable result */ |
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break; |
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}
. . . |
See also
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