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| author | Alan Mishchenko <alanmi@berkeley.edu> | 2018-12-12 22:15:10 -0800 |
|---|---|---|
| committer | Alan Mishchenko <alanmi@berkeley.edu> | 2018-12-12 22:15:10 -0800 |
| commit | 1f016988b2aaf55b6a4e8868bea1bd1c4259195b (patch) | |
| tree | 78bea969a5ff7d3b072aaa2564784df637edc020 | |
| parent | 2f88284d7b5dd2fc7e9d1141d8818a6349f15194 (diff) | |
| download | abc-1f016988b2aaf55b6a4e8868bea1bd1c4259195b.tar.gz abc-1f016988b2aaf55b6a4e8868bea1bd1c4259195b.tar.bz2 abc-1f016988b2aaf55b6a4e8868bea1bd1c4259195b.zip | |
Fixing float overflow during edge-flow computation in 'if' mapper (change to avoid dependence on the order of additions).
| -rw-r--r-- | src/map/if/ifCut.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/map/if/ifCut.c b/src/map/if/ifCut.c index 9d884e75..52603671 100644 --- a/src/map/if/ifCut.c +++ b/src/map/if/ifCut.c @@ -934,7 +934,11 @@ float If_CutAreaFlow( If_Man_t * p, If_Cut_t * pCut ) if ( Flow >= (float)1e32 || AddOn >= (float)1e32 ) Flow = (float)1e32; else + { Flow += AddOn; + if ( Flow > (float)1e32 ) + Flow = (float)1e32; + } } return Flow; } @@ -968,7 +972,11 @@ float If_CutEdgeFlow( If_Man_t * p, If_Cut_t * pCut ) if ( Flow >= (float)1e32 || AddOn >= (float)1e32 ) Flow = (float)1e32; else + { Flow += AddOn; + if ( Flow > (float)1e32 ) + Flow = (float)1e32; + } } return Flow; } |