diff options
| author |  Gael Guennebaud <g.gael@free.fr> | 2019-11-14 14:58:08 +0100 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2019-11-14 14:58:08 +0100 |
| commit | b9837ca9aeccb933e410102125fcd475e6cbcada (patch) | |
| tree | e6660f907faface1660bf434c77a0802133dabfe /unsupported/test | |
| parent | 0fb6e244081bb5acf7d14b26001459c6df1a6c58 (diff) | |
bug #1281: fix AutoDiffScalar's make_coherent for nested expression of constant ADs.
Diffstat (limited to 'unsupported/test')
| -rw-r--r-- | unsupported/test/autodiff.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/unsupported/test/autodiff.cpp b/unsupported/test/autodiff.cpp index bafea6ae9..2cea56ba5 100644 --- a/unsupported/test/autodiff.cpp +++ b/unsupported/test/autodiff.cpp @@ -352,6 +352,21 @@ double bug_1264() { return v2(0).value(); } +// check with expressions on constants +double bug_1281() { + int n = 2; + typedef AutoDiffScalar<VectorXd> AD; + const AD c = 1.; + AD x0(2,n,0); + AD y1 = (AD(c)+AD(c))*x0; + y1 = x0 * (AD(c)+AD(c)); + AD y2 = (-AD(c))+x0; + y2 = x0+(-AD(c)); + AD y3 = (AD(c)*(-AD(c))+AD(c))*x0; + y3 = x0 * (AD(c)*(-AD(c))+AD(c)); + return (y1+y2+y3).value(); +} + #endif EIGEN_DECLARE_TEST(autodiff) @@ -367,5 +382,6 @@ EIGEN_DECLARE_TEST(autodiff) CALL_SUBTEST_5( bug_1223() ); CALL_SUBTEST_5( bug_1260() ); CALL_SUBTEST_5( bug_1261() ); + CALL_SUBTEST_5( bug_1281() ); } |