This value is used to mark undefined index value. Its value is architecture dependent and it is the highest possible value of INDEX type. It may be defined directly ((INDEX) 0xFFF...) or by using conversion form signed value of -1 to its unsigned representation ((INDEX) -1), because the INDEX type is an unsigned integer. For more information please refer to its description.

Header file:AR_Types.h (include AR_API.h)
See also: INDEX
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