118 Commits

Author SHA1 Message Date
Gael Guennebaud
b4a156671f * make use of the EvalBeforeNestingBit and EvalBeforeAssigningBit
in ei_xpr_copy and operator=, respectively.
 * added Matrix::lazyAssign() when EvalBeforeAssigningBit must be skipped
   (mainly internal use only)
 * all expressions are now stored by const reference
 * added Temporary xpr: .temporary() must be called on any temporary expression
   not directly returned by a function (mainly internal use only)
 * moved all functors in the Functors.h header
 * added some preliminaries stuff for the explicit vectorization
2008-04-05 11:10:54 +00:00
Gael Guennebaud
048910caae * added cwise comparisons
* added "all" and "any" special redux operators
 * added support bool matrices
 * added support for cost model of STL functors via ei_functor_traits
  (By default ei_functor_traits query the functor member Cost)
2008-04-03 18:13:27 +00:00
Benoit Jacob
d1a29d6319 -new: recursive costs system, useful to determine automatically
when to evaluate arguments and when to meta-unroll.
-use it in Product to determine when to eval args. not yet used
 to determine when to unroll. for now, not used anywhere else but
 that'll follow.
-fix badness of my last commit
2008-04-03 11:10:17 +00:00
Benoit Jacob
f279162ec4 * introducte recursive Flags system for the expressions
-- currently 3 flags: RowMajor, Lazy and Large
 -- only RowMajor actually used for now
* many minor improvements
2008-03-30 18:43:22 +00:00
Benoit Jacob
729618c945 * #define EIGEN_NDEBUG now also disables asserts. Useful
to disable eigen's asserts without disabling one's own program's
  asserts. Notice that Eigen code should now use ei_assert()
  instead of assert().
* Remove findBiggestCoeff() as it's now almost redundant.
* Improve echelon.cpp: inner for loop replaced by xprs.
* remove useless "(*this)." here and there. I think they were
  first introduced by automatic search&replace.
* fix compilation in Visitor.h (issue triggered by echelon.cpp)
* improve comment on swap().
2008-03-26 08:48:04 +00:00
Gael Guennebaud
612350e3f8 * Added a generic *redux* mini framework allowing custom redux operations
as well as partial redux (vertical or horizontal redux).
   Includes shortcuts for: sum, minCoeff and maxCoeff.
   There is no shortcut for the partial redux.

 * Added a generic *visitor* mini framework. A visitor is a custom object
   sequentially applied on each coefficient with knowledge of its value and
   coordinates.
   It is currentlly used to implement minCoeff(int*,int*) and maxCoeff(int*,int*).
   findBiggestCoeff is now a shortcut for "this->cwiseAbs().maxCoeff(i,j)"

 * Added coeff-wise min and max.
 * fixed an issue with ei_pow(int,int) and gcc < 4.3 or ICC
2008-03-16 14:36:25 +00:00
Benoit Jacob
fb3438e609 - expand MathFunctions.h to provide more functions, like exp, log...
- add cwiseExp(), cwiseLog()...
   --> for example, doing a gamma-correction on a bitmap image stored as
       an array of floats is a simple matter of:
         Eigen::Map<VectorXf> m = VectorXf::map(bitmap,size);
         m = m.cwisePow(gamma);
- apidoc improvements, reorganization of the \name's
- remove obsolete examples
- remove EIGEN_ALWAYS_INLINE on lazyProduct(), it seems useless.
2008-03-14 10:38:37 +00:00
Benoit Jacob
fe569b060c get rid of MatrixRef, simplifications. 2008-03-13 20:36:01 +00:00
Benoit Jacob
afc64f3332 a lot of renaming
internal classes: AaBb -> ei_aa_bb
IntAtRunTimeIfDynamic -> ei_int_if_dynamic
unify UNROLLING_LIMIT (there was no reason to have operator= use
a higher limit)
etc...
2008-03-13 09:33:26 +00:00
Benoit Jacob
2ee68a074e generalized ei_traits<>.
Finally the importing macro is named EIGEN_BASIC_PUBLIC_INTERFACE
because it does not only import the ei_traits, it also makes the base class
a friend, etc.
2008-03-12 17:17:36 +00:00
Benoit Jacob
01572b9f54 big change: MatrixBase only takes one template parameter "Derived", the
template parameter "Scalar" is removed. This is achieved by introducting a
template <typename Derived> struct Scalar to achieve a forward-declaration of
the Scalar typedefs.
2008-03-10 17:23:11 +00:00
Gael Guennebaud
721626dfc5 * Added support for a comma initializer: mat.block(i,j,2,2) << 1, 2, 3, 4;
If the number of coefficients does not match the matrix size, then an assertion is raised.
  No support for xpr on the right side for the moment.

* Added support for assertion checking. This allows to test that an assertion is indeed raised
  when it should be.

* Fixed a mistake in the CwiseUnary example.
2008-03-08 19:02:24 +00:00
Gael Guennebaud
138aad0ed0 * coefficient wise operators are more generic, with controllable result type.
- compatible with current STL's functors as well as with the extention proposal (TR1)
 * thanks to the above, Cast and ScalarMultiple have been removed
 * benchmark_suite is more flexible (compiler and matrix size)
2008-03-06 11:36:27 +00:00
Benoit Jacob
861c6f4c9b renaming: ref() --> asArg() 2008-03-04 17:08:23 +00:00
Gael Guennebaud
f65cca5d1d * Eigen compiles with any GCC versions from, at least, 3.3 without the previous ugly hack :)
* Renamed the scalar functors with the "Scalar" prefix (instead of "Cwise")
2008-03-04 12:34:58 +00:00
Gael Guennebaud
46885d33bf Removed trailling spaces. 2008-03-03 11:02:52 +00:00
Gael Guennebaud
255689231d * Added generic unary operators (replace Opposite and Conjugate)
* functor templates are not template template parameter anymore
   (this allows to make templated functors !)
 * Main page: extented compiler discussion
 * A small hack to support gcc 3.4 and 4.0 (see the main page)
 * Fix a cast type issue in Cast
 * Various doxygen updates (mainly Cwise stuff and added doxygen groups
   in MatrixBase to split the huge memeber list, still not perfect though)
 * Updated Gael's email address
2008-03-03 10:52:44 +00:00
Benoit Jacob
a2f8d4be6a Patch by Gael Guennebaud: coeff-wise binary operators.
This unifies + and - and moreover this patch introduces
coeff-wise * and / based on this. Also, corresponding test.
2008-02-29 14:35:14 +00:00