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relax Matrix/Array(Index) ctors to allow size 0, add test.

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This commit is contained in:
Benoit Jacob 2011-02-01 07:46:02 -05:00
parent faa1284c12
commit 2d09b11a97
4 changed files with 8 additions and 3 deletions
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2
Eigen/src/Core/Array.h
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@ -147,7 +147,7 @@ class Array
{
Base::_check_template_params();
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Array)
eigen_assert(dim > 0);
eigen_assert(dim >= 0);
eigen_assert(SizeAtCompileTime == Dynamic || SizeAtCompileTime == dim);
EIGEN_INITIALIZE_BY_ZERO_IF_THAT_OPTION_IS_ENABLED
}

2
Eigen/src/Core/Matrix.h
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@ -235,7 +235,7 @@ class Matrix
{
Base::_check_template_params();
EIGEN_STATIC_ASSERT_VECTOR_ONLY(Matrix)
eigen_assert(dim > 0);
eigen_assert(dim >= 0);
eigen_assert(SizeAtCompileTime == Dynamic || SizeAtCompileTime == dim);
EIGEN_INITIALIZE_BY_ZERO_IF_THAT_OPTION_IS_ENABLED
}

6
doc/A05_PortingFrom2To3.dox
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@ -22,7 +22,11 @@ and gives tips to help porting your application from Eigen2 to Eigen3.
\section CompatibilitySupport Eigen2 compatibility support
In order to ease the switch from Eigen2 to Eigen3, Eigen3 features a compatibility mode which can be enabled by defining the EIGEN2_SUPPORT preprocessor token \b before including any Eigen header (typically it should be set in your project options).
In order to ease the switch from Eigen2 to Eigen3, Eigen3 features a Eigen2 support modes \ref TopicResizing "this page"..
The quick way to enable this is to define the EIGEN2_SUPPORT preprocessor token \b before including any Eigen header (typically it should be set in your project options).
Moreover, we also provided a staged migration path which may be useful to migrate large projects
\section Using The USING_PART_OF_NAMESPACE_EIGEN macro

1
test/CMakeLists.txt
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@ -121,6 +121,7 @@ ei_add_test(permutationmatrices)
ei_add_test(eigen2support)
ei_add_test(nullary)
ei_add_test(nesting_ops "${CMAKE_CXX_FLAGS_DEBUG}")
ei_add_test(zerosized)
ei_add_test(prec_inverse_4x4)