User-defined double output precision #15
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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));
As proposed in other patches, it is convenient to pass a user-defined precision for the (programmatic) output of a single double value to an OutputStream. This patch adds an additional overload with an explicit precision argument to the (Pretty)Writer class templates.
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Writing a
doubleto anOutputStreamcurrent prints at most 6 significantdigits (according to the C standard).
The functions
Set/GetDoublePrecision(), added to theWriterclassescan be used to fluently set the precision, i.e. the number of significant
digits to use for writing the double:
Additionally, a new
Double(double,int)overload is added to theWriterclasses,allowing to programmatically write a single
doublevalue with a custom output precision:An additional unit test
Writer.DoublePrecisionis added as well.See upstream issues