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add EIGEN_INITIALIZE_MATRICES_BY_NAN

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Gael Guennebaud
2013-02-07 18:07:07 +01:00
parent 3c1ccca285
commit 5115f4c504
4 changed files with 21 additions and 15 deletions
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6
doc/PreprocessorDirectives.dox
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@@ -27,7 +27,11 @@ are doing.
- \b EIGEN_DEFAULT_IO_FORMAT - the IOFormat to use when printing a matrix if no %IOFormat is specified.
Defaults to the %IOFormat constructed by the default constructor IOFormat::IOFormat().
- \b EIGEN_INITIALIZE_MATRICES_BY_ZERO - if defined, all entries of newly constructed matrices and arrays are
initializes to zero, as are new entries in matrices and arrays after resizing. Not defined by default.
initialized to zero, as are new entries in matrices and arrays after resizing. Not defined by default.
- \b EIGEN_INITIALIZE_MATRICES_BY_NAN - if defined, all entries of newly constructed matrices and arrays are
initialized to NaN, as are new entries in matrices and arrays after resizing. This option is especially
useful for debugging purpose, though a memory tool like <a href="http://valgrind.org/">valgring</a> is
preferable. Not defined by default.
- \b EIGEN_NO_AUTOMATIC_RESIZING - if defined, the matrices (or arrays) on both sides of an assignment
<tt>a = b</tt> have to be of the same size; otherwise, %Eigen automatically resizes \c a so that it is of
the correct size. Not defined by default.