| 42 | namespace Gecode { namespace Float { namespace Linear { |
| 43 | |
| 44 | void |
| 45 | estimate(Term* t, int n, FloatVal c, FloatNum& l, FloatNum &u) { |
| 46 | FloatVal est = c; |
| 47 | for (int i=n; i--; ) |
| 48 | est += t[i].a * t[i].x.domain(); |
| 49 | FloatNum min = est.min(); |
| 50 | FloatNum max = est.max(); |
| 51 | if (min < Limits::min) |
| 52 | min = Limits::min; |
| 53 | if (min > Limits::max) |
| 54 | min = Limits::max; |
| 55 | l = min; |
| 56 | if (max < Limits::min) |
| 57 | max = Limits::min; |
| 58 | if (max > Limits::max) |
| 59 | max = Limits::max; |
| 60 | u = max; |
| 61 | } |
| 62 | |
| 63 | forceinline bool |
| 64 | overflow(Term* t, int n, FloatVal c) { |