diff options
author | Benoit Jacob <jacob.benoit.1@gmail.com> | 2009-08-13 22:50:55 -0400 |
---|---|---|
committer | Benoit Jacob <jacob.benoit.1@gmail.com> | 2009-08-13 22:50:55 -0400 |
commit | 1d80f561ad48a96e9852dd8bfdbc400574aa67e5 (patch) | |
tree | 1b1153ffe7cd8a178c49a3d2561b558829c1e0c3 /Eigen/src | |
parent | 99802094e471bb64cc3c3e3d0b2391ba2a1e75a2 (diff) |
apply change discussed on the list :
* new default precision "-1" means use the current stream precision
* otherwise, save and restore the stream precision
Diffstat (limited to 'Eigen/src')
-rw-r--r-- | Eigen/src/Core/IO.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/Eigen/src/Core/IO.h b/Eigen/src/Core/IO.h index 38ac3eef3..7cd2b683a 100644 --- a/Eigen/src/Core/IO.h +++ b/Eigen/src/Core/IO.h @@ -33,7 +33,7 @@ enum { Raw, AlignCols }; * \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 precision number of digits for floating point values. The default value -1 means that the current stream precision is used. * - \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 @@ -50,7 +50,7 @@ enum { Raw, AlignCols }; struct IOFormat { /** Default contructor, see class IOFormat for the meaning of the parameters */ - IOFormat(int _precision=4, int _flags=Raw, + IOFormat(int _precision=-1, 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="") @@ -134,12 +134,12 @@ std::ostream & ei_print_matrix(std::ostream & s, const Derived& _m, const IOForm for(int i = 0; i < m.rows(); ++i) { std::stringstream sstr; - sstr.precision(fmt.precision); + if(fmt.precision != -1) sstr.precision(fmt.precision); sstr << m.coeff(i,j); width = std::max<int>(width, int(sstr.str().length())); } } - s.precision(fmt.precision); + std::streamsize old_precision = s.precision(fmt.precision); s << fmt.matPrefix; for(int i = 0; i < m.rows(); ++i) { @@ -159,6 +159,7 @@ std::ostream & ei_print_matrix(std::ostream & s, const Derived& _m, const IOForm s << fmt.rowSeparator; } s << fmt.matSuffix; + s.precision(old_precision); return s; } |