Philipp A. Hartmann 0ccc51fbae Writer: add SetDoublePrecision to control number of significant digits
Writing a double to an OutputStream current prints at most 6 significant
digits (according to the C standard).

The function SetDoublePrecision(), added to the Writer classes
can be used to fluently set the precision, i.e. the number of
significant digits to use for writing the double:

  Writer<...> writer(...);
  d.Accept(writer.SetDoublePrecision(12));
2014-06-25 18:09:16 +02:00
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