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| author |  Gael Guennebaud <g.gael@free.fr> | 2013-02-07 18:07:07 +0100 |
|---|---|---|
| committer | Gael Guennebaud <g.gael@free.fr> | 2013-02-07 18:07:07 +0100 |
| commit | 5115f4c50429398b61807181f6c155ba17243af7 (patch) | |
| tree | 9e231dafb242618d65f43e04abcb4c0e1d010a16 /doc/PreprocessorDirectives.dox | |
| parent | 3c1ccca28577e4b9e815b4e263295a21ad654136 (diff) | |
add EIGEN_INITIALIZE_MATRICES_BY_NAN
Diffstat (limited to 'doc/PreprocessorDirectives.dox')
| -rw-r--r-- | doc/PreprocessorDirectives.dox | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/PreprocessorDirectives.dox b/doc/PreprocessorDirectives.dox index 0c4c47464..f731b5628 100644 --- a/doc/PreprocessorDirectives.dox +++ b/doc/PreprocessorDirectives.dox @@ -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. |