diff options
author | Gael Guennebaud <g.gael@free.fr> | 2008-08-23 19:41:00 +0000 |
---|---|---|
committer | Gael Guennebaud <g.gael@free.fr> | 2008-08-23 19:41:00 +0000 |
commit | bfe86b8fc0434cf03838bc1534f9f810594f2f08 (patch) | |
tree | 942566f88571c1fd7753e54ac1c55c0df5c3e307 /Eigen/src/Core | |
parent | c3f46cf55b7fab237edb379f501aecc619dc0038 (diff) |
* add documentation of the cool (?) "print with format" feature
* move the ioformat.cpp test to a documentation example
* rename IoFormat => IOFormat
Diffstat (limited to 'Eigen/src/Core')
-rw-r--r-- | Eigen/src/Core/Cwise.h | 2 | ||||
-rw-r--r-- | Eigen/src/Core/IO.h | 58 | ||||
-rw-r--r-- | Eigen/src/Core/MatrixBase.h | 2 | ||||
-rw-r--r-- | Eigen/src/Core/util/ForwardDeclarations.h | 2 |
4 files changed, 55 insertions, 9 deletions
diff --git a/Eigen/src/Core/Cwise.h b/Eigen/src/Core/Cwise.h index c3a15e307..b4c508ddd 100644 --- a/Eigen/src/Core/Cwise.h +++ b/Eigen/src/Core/Cwise.h @@ -68,7 +68,7 @@ template<typename ExpressionType> class Cwise inline const ExpressionType& _expression() const { return m_matrix; } template<typename OtherDerived> - const EIGEN_CWISE_BINOP_RETURN_TYPE(ei_scalar_product_op) + const EIGEN_CWISE_BINOP_RETURN_TYPE(ei_scalar_product_op) operator*(const MatrixBase<OtherDerived> &other) const; template<typename OtherDerived> diff --git a/Eigen/src/Core/IO.h b/Eigen/src/Core/IO.h index 5b503b590..1512fdb8a 100644 --- a/Eigen/src/Core/IO.h +++ b/Eigen/src/Core/IO.h @@ -27,9 +27,29 @@ enum { Raw, AlignCols }; -struct IoFormat +/** \class IOFormat + * + * \brief Stores a set of parameters controlling the way matrices are printed + * + * List of available parameters: + * - \b precision number of digits for floating point values + * - \b flags can be either Raw (default) or AlignCols which aligns all the columns + * - \b coeffSeparator string printed between two coefficients of the same row + * - \b rowSeparator string printed between two rows + * - \b rowPrefix string printed at the begining of each row + * - \b rowSuffix string printed at the end of each row + * - \b matPrefix string printed at the begining of the matrix + * - \b matSuffix string printed at the end of the matrix + * + * Example: \include IOFormat.cpp + * Output: \verbinclude IOFormat.out + * + * \sa MatrixBase::format(), class WithFormat + */ +struct IOFormat { - IoFormat(int _precision=4, int _flags=Raw, + /** Default contructor, see class IOFormat for the meaning of the parameters */ + IOFormat(int _precision=4, int _flags=Raw, const std::string& _coeffSeparator = " ", const std::string& _rowSeparator = "\n", const std::string& _rowPrefix="", const std::string& _rowSuffix="", const std::string& _matPrefix="", const std::string& _matSuffix="") @@ -51,12 +71,26 @@ struct IoFormat int flags; }; +/** \class WithFormat + * + * \brief Pseudo expression providing matrix output with given format + * + * \param ExpressionType the type of the object on which IO stream operations are performed + * + * This class represents an expression with stream operators controlled by a given IOFormat. + * It is the return type of MatrixBase::format() + * and most of the time this is the only way it is used. + * + * See class IOFormat for some examples. + * + * \sa MatrixBase::format(), class IOFormat + */ template<typename ExpressionType> class WithFormat { public: - WithFormat(const ExpressionType& matrix, const IoFormat& format) + WithFormat(const ExpressionType& matrix, const IOFormat& format) : m_matrix(matrix), m_format(format) {} @@ -67,19 +101,28 @@ class WithFormat protected: const typename ExpressionType::Nested m_matrix; - IoFormat m_format; + IOFormat m_format; }; +/** \returns a WithFormat proxy object allowing to print a matrix the with given + * format \a fmt. + * + * See class IOFormat for some examples. + * + * \sa class IOFormat, class WithFormat + */ template<typename Derived> inline const WithFormat<Derived> -MatrixBase<Derived>::format(const IoFormat& fmt) const +MatrixBase<Derived>::format(const IOFormat& fmt) const { return WithFormat<Derived>(derived(), fmt); } +/** \internal + * print the matrix \a _m to the output stream \a s using the output format \a fmt */ template<typename Derived> std::ostream & ei_print_matrix(std::ostream & s, const MatrixBase<Derived> & _m, - const IoFormat& fmt = IoFormat()) + const IOFormat& fmt = IOFormat()) { const typename Derived::Nested m = _m; int width = 0; @@ -121,6 +164,9 @@ std::ostream & ei_print_matrix(std::ostream & s, const MatrixBase<Derived> & _m, /** \relates MatrixBase * * Outputs the matrix, laid out as an array as usual, to the given stream. + * You can control the way the matrix is printed using MatrixBase::format(). + * + * \sa MatrixBase::format() */ template<typename Derived> std::ostream & operator << diff --git a/Eigen/src/Core/MatrixBase.h b/Eigen/src/Core/MatrixBase.h index a60ae3ff5..a36376bfd 100644 --- a/Eigen/src/Core/MatrixBase.h +++ b/Eigen/src/Core/MatrixBase.h @@ -525,7 +525,7 @@ template<typename Derived> class MatrixBase const Cwise<Derived> cwise() const; Cwise<Derived> cwise(); - inline const WithFormat<Derived> format(const IoFormat& fmt) const; + inline const WithFormat<Derived> format(const IOFormat& fmt) const; /////////// Array module /////////// diff --git a/Eigen/src/Core/util/ForwardDeclarations.h b/Eigen/src/Core/util/ForwardDeclarations.h index 0ad72b6f6..3d9f99644 100644 --- a/Eigen/src/Core/util/ForwardDeclarations.h +++ b/Eigen/src/Core/util/ForwardDeclarations.h @@ -82,7 +82,7 @@ template<typename Scalar> struct ei_scalar_max_op; template<typename Scalar> struct ei_scalar_random_op; template<typename Scalar> struct ei_scalar_add_op; -struct IoFormat; +struct IOFormat; template<typename Scalar> void ei_cache_friendly_product( |