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clarify docs as requested on the forum

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Benoit Jacob 2010-01-02 12:54:55 -05:00
parent 74207a31fa
commit e4c88c14ec
2 changed files with 5 additions and 4 deletions
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doc/StlContainers.dox
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@ -11,7 +11,7 @@ namespace Eigen {
\section summary Executive summary
Using STL containers on \ref FixedSizeVectorizable "fixed-size vectorizable Eigen types" requires taking the following two steps:
Using STL containers on \ref FixedSizeVectorizable "fixed-size vectorizable Eigen types", or classes having members of such types, requires taking the following two steps:
\li A 16-byte-aligned allocator must be used. Eigen does provide one ready for use: aligned_allocator.
\li If you want to use the std::vector container, you need to \#include <Eigen/StdVector>.

7
doc/UnalignedArrayAssert.dox
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@ -55,16 +55,17 @@ Note that here, Eigen::Vector2d is only used as an example, more generally the i
\section c2 Cause 2: STL Containers
If you use STL Containers such as std::vector, std::map, ..., with Eigen objects, like this,
If you use STL Containers such as std::vector, std::map, ..., with Eigen objects, or with classes containing Eigen objects, like this,
\code
std::vector<Eigen::Matrix2f> my_vector;
std::map<int, Eigen::Matrix2f> my_map;
struct my_class { ... Eigen::Matrix2f m; ... };
std::map<int, my_class> my_map;
\endcode
then you need to read this separate page: \ref StlContainers "Using STL Containers with Eigen".
Note that here, Eigen::Matrix2f is only used as an example, more generally the issue arises for all \ref FixedSizeVectorizable "fixed-size vectorizable Eigen types".
Note that here, Eigen::Matrix2f is only used as an example, more generally the issue arises for all \ref FixedSizeVectorizable "fixed-size vectorizable Eigen types" and \ref StructHavingEigenMembers "structures having such Eigen objects as member".
\section c3 Cause 3: Passing Eigen objects by value