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EdmiError edmiAggrInstanceCompare(SdaiAggr operand1,
SdaiAggr operand2,
SdaiLogical *result);
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Implements the Express Aggregate Instance Comparison> operation as defined in section 12.2.2.1 Aggregate instance comparison; in ISO 10303-11:1994(E) : The EXPRESS Language Reference Manual.
This operation is only applicable to aggregates in data models. The actual data models must be open before this function can be successfully performed. Related functions: edmiAggrDifference, edmiAggrIntersection , edmiAggrUnion , edmiAggrValueCompare , edmiIsAggrSubset , edmiIsAggrSuperset
Header:
#include "sdai.h"
Prototype:
EdmiError edmiAggrInstanceCompare(SdaiAggr operand1,
SdaiAggr operand2,
SdaiLogical *result);
Arguments:
Arguments
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| Type | Name | Comment |
| SdaiAggr | operand1 | A numeric aggregateID that uniquely identifies the aggregate instance used as operand1 (left operand) in the aggregate instance compare operation. |
| SdaiAggr | operand2 | A numeric aggregateID that uniquely identifies the aggregate instance used as operand2 (right operand) in the aggregate instance compare operation. |
| SdaiLogical | result | Address of a variable that will receive the result of the aggregate instance compare operation. |
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Return Value
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Options
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Example
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EdmiError rstat; SdaiLogical result; SdaiAggr operand1, operand2; . . . If (rstat = edmiAggrInstanceCompare (operand1, operand2, &result)) { /* Error in operation */ printf("\nError: %s in edmiAggrInstanceCompare \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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. . . /* The two aggregates are instance value equal */ |
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break; |
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case sdaiFALSE: |
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. . . /* The two aggregates are not instance value equal */ |
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break; |
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default: |
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. . . /* Unset elements in one of the |
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aggregates or
error in operation */
}
. . . |
See also
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