117 lines
2.9 KiB
C++
117 lines
2.9 KiB
C++
// Boost.Units - A C++ library for zero-overhead dimensional analysis and
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// unit/quantity manipulation and conversion
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//
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// Copyright (C) 2003-2008 Matthias Christian Schabel
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// Copyright (C) 2008 Steven Watanabe
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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/**
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\file
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\brief composite_output.cpp
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\details An example of textual representations of units.
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Output:
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@verbatim
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//[conversion_output_output
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2 dyn
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2 dyn
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2 dyne
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cm g s^-1
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centimeter gram second^-1
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dyn
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dyne
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n
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nano
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n
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nano
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F
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farad
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1 F
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1 farad
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nF
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nanofarad
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1 nF
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1 nanofarad
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n(cm g s^-1)
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nano(centimeter gram second^-1)
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//]
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@endverbatim
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**/
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#include <boost/units/quantity.hpp>
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#include <boost/units/systems/cgs.hpp>
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#include <boost/units/io.hpp>
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#include <boost/units/scale.hpp>
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#include <boost/units/detail/utility.hpp>
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#include <boost/units/systems/si/capacitance.hpp>
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#include <boost/units/systems/si/io.hpp>
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#include <boost/units/systems/si/prefixes.hpp>
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#include <iostream>
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#include <sstream>
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namespace boost {
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namespace units {
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//[composite_output_snippet_1
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std::string name_string(const cgs::force&)
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{
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return "dyne";
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}
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std::string symbol_string(const cgs::force&)
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{
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return "dyn";
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}
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//]
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}
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}
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int main()
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{
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using namespace boost::units;
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using boost::units::cgs::centimeter;
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using boost::units::cgs::gram;
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using boost::units::cgs::second;
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using boost::units::cgs::dyne;
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//[composite_output_snippet_2]
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std::cout << 2.0 * dyne << std::endl
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<< symbol_format << 2.0 * dyne << std::endl
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<< name_format << 2.0 * dyne << std::endl
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<< symbol_format << gram*centimeter/second << std::endl
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<< name_format << gram*centimeter/second << std::endl
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<< symbol_format << gram*centimeter/(second*second) << std::endl
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<< name_format << gram*centimeter/(second*second) << std::endl
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<< symbol_string(scale<10,static_rational<-9> >()) << std::endl
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<< name_string(scale<10,static_rational<-9> >()) << std::endl
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<< symbol_format << si::nano << std::endl
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<< name_format << si::nano << std::endl
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<< symbol_format << si::farad << std::endl
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<< name_format << si::farad << std::endl
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<< symbol_format << 1.0*si::farad << std::endl
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<< name_format << 1.0*si::farad << std::endl
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<< symbol_format << si::farad*si::nano << std::endl
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<< name_format << si::farad*si::nano << std::endl
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<< symbol_format << 1.0*si::farad*si::nano << std::endl
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<< name_format << 1.0*si::farad*si::nano << std::endl
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<< symbol_format << si::nano*gram*centimeter/second << std::endl
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<< name_format << si::nano*gram*centimeter/second << std::endl;
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//]
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return 0;
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}
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