Impala Documentation

template<class DstArrayT, class SrcArrayT>

double Impala::Core::Feature::IntWeibullNgbPnLoop< DstArrayT, SrcArrayT >::Rf_d1mach ( int i ) [inline]

Definition at line 370 of file IntWeibullNgbPnLoop.h.

References DBL_EPSILON, DBL_MAX, DBL_MIN, and M_LOG10_2.

Referenced by Impala::Core::Feature::IntWeibullNgbPnLoop< DstArrayT, SrcArrayT >::dpsifn().

00371 {
00372   switch(i) 
00373   {
00374     
00375   case 1: return DBL_MIN;
00376   case 2: return DBL_MAX;
00377     
00378   case 3: /* = FLT_RADIX  ^ - DBL_MANT_DIG
00379              for IEEE:  = 2^-53 = 1.110223e-16 = .5*DBL_EPSILON */
00380     return 0.5*DBL_EPSILON;
00381     
00382   case 4: /* = FLT_RADIX  ^ (1- DBL_MANT_DIG) =
00383              for IEEE:  = 2^-52 = DBL_EPSILON */
00384     return DBL_EPSILON;
00385     
00386   case 5: return M_LOG10_2;
00387     
00388   default: return 0.0;
00389   }
00390 }