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Antonio Sanchez bb1de9dbde Fix Ref Stride checks. 
The existing `Ref` class failed to consider cases where the Ref's
`Stride` setting *could* match the underlying referred object's stride,
but **didn't** at runtime.  This led to trying to set invalid stride values,
causing runtime failures in some cases, and garbage due to mismatched
strides in others.

Here we add the missing runtime checks.  This involves computing the
strides necessary to align with the referred object's storage, and
verifying we can actually set those strides at runtime.

In the `const` case, if it *may* be possible to refer to the original
storage at compile-time but fails at runtime, then we defer to the
`construct(...)` method that makes a copy.

Added more tests to check these cases.

Fixes #2093.
2021-01-05 10:41:25 -08:00
bench Fix #1911: add benchmark for move semantics with fixed-size matrix 2020-06-11 23:43:25 +00:00
blas STYLE: Remove CMake-language block-end command arguments 2019-10-31 11:36:27 -05:00
ci Add CI configuration for ppc64le 2020-09-22 00:26:23 +00:00
cmake check for include dirs set 2020-11-26 10:22:46 +00:00
debug MIsc. source and comment typos 2018-03-11 10:01:44 -04:00
demos Make file formatting comply with POSIX and Unix standards 2020-03-23 18:09:02 +00:00
doc Fix typo in doc 2020-11-30 10:53:29 +00:00
Eigen Fix Ref Stride checks. 2021-01-05 10:41:25 -08:00
failtest Make file formatting comply with POSIX and Unix standards 2020-03-23 18:09:02 +00:00
lapack Remove code checking for CMake < 3.5 2020-12-14 09:57:44 +00:00
scripts Replace calls to "hg" by calls to "git" 2019-12-04 11:24:06 +01:00
test Fix Ref Stride checks. 2021-01-05 10:41:25 -08:00
unsupported Add CUDA complex sqrt. 2020-12-22 23:25:23 -08:00
.gitignore New CI infrastructure, including AArch64 runners 2020-09-11 18:11:49 +00:00
.gitlab-ci.yml New CI infrastructure, including AArch64 runners 2020-09-11 18:11:49 +00:00
.hgeol Added a pattern which forces LF line endings for *.sh files. 2013-07-31 18:20:58 +02:00
CMakeLists.txt Remove code checking for CMake < 3.5 2020-12-14 09:57:44 +00:00
COPYING.APACHE Add Apache 2.0 license text in COPYING.APACHE. 2020-06-18 12:45:27 -07:00
COPYING.BSD Make file formatting comply with POSIX and Unix standards 2020-03-23 18:09:02 +00:00
COPYING.GPL there's no reason why we should follow the FSF's stupid recommendation for the naming of these files, right? This could give the wrong impression that Eigen is only GPL-licensed. 2009-11-14 23:26:07 -05:00
COPYING.LGPL Replace COPYING.LGPL by a copy of the LGPL 2.1 (instead of LGPL 3). 2012-09-10 13:27:44 -04:00
COPYING.MINPACK Make file formatting comply with POSIX and Unix standards 2020-03-23 18:09:02 +00:00
COPYING.MPL2 add COPYING.MPL2 2012-07-15 10:20:59 -04:00
COPYING.README Replace COPYING.LGPL by a copy of the LGPL 2.1 (instead of LGPL 3). 2012-09-10 13:27:44 -04:00
CTestConfig.cmake STYLE: Convert CMake-language commands to lower case 2019-10-31 11:36:37 -05:00
CTestCustom.cmake.in Allow to filter out build-error messages 2018-07-24 20:12:49 +02:00
eigen3.pc.in Further fixes for CMAKE_INSTALL_PREFIX correctness 2015-11-07 21:29:24 -05:00
INSTALL finally, the right fix: set CTEST_BUILD_TARGET. 2009-10-04 20:27:44 -04:00
README.md Update old links to bitbucket to point to gitlab.com 2019-12-04 10:57:07 +01:00
signature_of_eigen3_matrix_library improve the scripts for building unit tests: 2009-11-25 21:26:37 -05:00

README.md

Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.

For more information go to http://eigen.tuxfamily.org/.

For pull request, bug reports, and feature requests, go to https://gitlab.com/libeigen/eigen.