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* update the general TOC

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* integrate the old geometry/sparse tutorial into the new one (they are better than nothing)
* remove the old tutorial on the core module
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Gael Guennebaud
2010-07-04 10:14:47 +02:00
parent 11329f49f4
commit 41ea92d355
15 changed files with 71 additions and 826 deletions
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doc/D07_PassingByValue.dox
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namespace Eigen {
/** \page PassingByValue Troubleshooting - Passing Eigen objects by value to functions
/** \page TopicPassingByValue Passing Eigen objects by value to functions
Passing objects by value is almost always a very bad idea in C++, as this means useless copies, and one should pass them by reference instead.
With Eigen, this is even more important: passing \ref FixedSizeVectorizable "fixed-size vectorizable Eigen objects" by value is not only inefficient, it can be illegal or make your program crash! And the reason is that these Eigen objects have alignment modifiers that aren't respected when they are passed by value.
With Eigen, this is even more important: passing \ref TopicFixedSizeVectorizable "fixed-size vectorizable Eigen objects" by value is not only inefficient, it can be illegal or make your program crash! And the reason is that these Eigen objects have alignment modifiers that aren't respected when they are passed by value.
So for example, a function like this, where v is passed by value: