type_template unit_binary_op

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Description

expression template ¹ used to compose units for output using * and / operators.

Example:

  basic_quantity<
      decltype( si::mass_unit::g() * si::area_unit::mm2() / si::time_unit::min() ),
      double
   > Q{123.45};

   output<charset_utf8>(std::cout,Q) <<'\n';

sample output :123.45 g⋅mm²⁄min

Notes

• [1] https://en.wikipedia.org/wiki/Expression_templates