TablePrinter.tpp

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#if defined(USE_BOOST_KARMA)
#include <boost/spirit/include/karma.hpp>
namespace karma = boost::spirit::karma;
#endif
 
#include <arch.h>
 
namespace bprinter
{
#if defined(USE_BOOST_KARMA)
template<typename T> void TablePrinter::OutputDecimalNumber(T input)
{
  *out_stream_ << karma::format(
                 karma::maxwidth(column_widths_.at(j_))[
                   karma::right_align(column_widths_.at(j_))[
                     karma::double_
                   ]
                 ], input
               );
 
  if (j_ == get_num_columns()-1)
    {
      *out_stream_ << "│\n";
      i_ = i_ + 1;
      j_ = 0;
    }
  else
    {
      *out_stream_ << separator_;
      j_ = j_ + 1;
    }
}
#else
template<typename T> void TablePrinter::OutputDecimalNumber(T input)
{
 
  // determine what precision we need
  int precision = column_widths_.at(j_) - 1; // leave room for the decimal point
  if (input < 0)
    --precision; // leave room for the minus sign
 
  // leave room for digits before the decimal?
  if (input < -1 || input > 1)
    {
      int num_digits_before_decimal = 1 + (int)log10(std::abs(input));
      precision -= num_digits_before_decimal;
    }
  else
    precision --; // e.g. 0.12345 or -0.1234
 
  if (precision < 0)
    precision = 0; // don't go negative with precision
 
  *out_stream_ << std::setiosflags(std::ios::fixed)
               << std::setprecision(std::min(precision, 5))
               << std::setw(column_widths_.at(j_));
  out_stream_->unsetf(std::ios_base::floatfield);
  *out_stream_ << input;
 
  if (j_ == get_num_columns()-1)
    {
      *out_stream_ << "│\n";
      i_ = i_ + 1;
      j_ = 0;
    }
  else
    {
      *out_stream_ << separator_;
      j_ = j_ + 1;
    }
}
#endif //USE_BOOST_KARMA
}