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Mantis - ALGLIB
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| ID: | Category: | Severity: | Reproducibility: | Date Submitted: | Last Update: |
| 293 | Linear algebra | crash | always | 2010-02-07 22:26 | 2010-02-08 10:38 |
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| Reporter: | wvd_vegt | Platform: | |||
| Assigned To: | SergeyB | OS: | |||
| Priority: | normal | OS Version: | |||
| Status: | resolved | Product Version: | 2.3.0 | ||
| Product Build: | Resolution: | no change required | |||
| Projection: | none | ||||
| ETA: | none | Fixed in Version: | |||
| Programming language: | C# | ||||
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| Summary: | 0000293: SVD Algorithhm crashes on array bounds | ||||
| Description: |
Hi, When i try to run an SVD the routine crashes on an array index out of bounds in Test method LsaTest.LsaTests.TestDecompose threw exception: System.IndexOutOfRangeException: De index ligt buiten de matrixgrenzen.. The error comes from the loop for(i_=1; i_<=nmip1;i_++) { t[i_] = a[i,i_+i1_]; } where the i_ index runs from 0 to 25 (in the alglib svd test code) where the array is only 25 elements and start at 0 (so the index should run from 0..24). |
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| Steps To Reproduce: | |||||
| Additional Information: |
Callstack: alglib.lq.lqdecomposition(Double[,]& a, Int32 m, Int32 n, Double[]& tau) in Alglib\lq.cs: line 285 alglib.svd.svddecomposition(Double[,] a, Int32 m, Int32 n, Int32 uneeded, Int32 vtneeded, Int32 additionalmemory, Double[]& w, Double[,]& u, Double[,]& vt) in Alglib\svd.cs: line 517 --<rest is from my test probject. Lsa.NET.Lsa.Decompose() in C:\Documents and Settings\veg\Mijn documenten\Visual Studio 2008\Projects\Lsa\lsa\Lsa.cs: line 942 LsaTest.LsaTests.TestDecompose() in C:\Documents and Settings\veg\Mijn documenten\Visual Studio 2008\Projects\Lsa\lsatest\LsaTests.cs: line 175 As you can see I compiled and ran a vs2k8 unit test (copied the code from the alglib test into it). |
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| Issue History | |||||
| Date Modified | Username | Field | Change | ||
| 2010-02-07 22:26 | wvd_vegt | New Issue | |||
| 2010-02-07 22:26 | wvd_vegt | Programming language | => C# | ||
| 2010-02-08 10:30 | SergeyB | Status | new => assigned | ||
| 2010-02-08 10:30 | SergeyB | Assigned To | => SergeyB | ||
| 2010-02-08 10:33 | SergeyB | Category | Statistics => Linear algebra | ||
| 2010-02-08 10:38 | SergeyB | Note Added: 0000045 | |||
| 2010-02-08 10:38 | SergeyB | Status | assigned => resolved | ||
| 2010-02-08 10:38 | SergeyB | Resolution | open => no change required | ||
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