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SetEf

API Definition

int SetEf(int ef);

Function

Sets the size of the candidate node list during search.

Parameters

Parameter

Description

Data Type

Value Range

ef

Size of the candidate node list during search.

int

[1,n], where n indicates the data volume.

Return Value

Data Type

Description

int

If the parameter value exceeds the value range, -1 is returned. If this API is called before BuildSearcher or Load/Deserialize/LoadGraph is called, -1 is returned. Otherwise, 0 is returned.