ANN_NULL_IDX: integer = -1;

Recognion_SearchTree

a NULL point index ----------------------------------------------------------------------// Infinite distance: // The code assumes that there is an "infinite distance" which it // uses to initialize distances before performing nearest neighbor // searches. It should be as larger or larger than any legitimate // nearest neighbor distance. // // On most systems, these should be found in the standard include // file or possibly . If you do not have these // file, some suggested values are listed below, assuming 64-bit // long, 32-bit int and 16-bit short. // // ANNdist ANN_DIST_INF Values (see or ) // ------- ------------ ------------------------------------ // double DBL_MAX 1.79769313486231570e+308 // float FLT_MAX 3.40282346638528860e+38 // long LONG_MAX 0x7fffffffffffffff // int INT_MAX 0x7fffffff // short SHRT_MAX 0x7fff