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(C++) BoostUnitsExample2

 

Cpp98BoostQt CreatorLubuntuWindows

 

Boost.Units example 2: calculate the area from two lengths is a Boost.Units example.

 

Technical facts

 

Operating system(s) or programming environment(s)

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Qt project file: ./CppBoostUnitsExample2/CppBoostUnitsExample2.pro

 

include(../../ConsoleApplication.pri) #Or use the code below
# QT += core
# QT += gui
# greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
# CONFIG   += console
# CONFIG   -= app_bundle
# TEMPLATE = app
# CONFIG(release, debug|release) {
#   DEFINES += NDEBUG NTRACE_BILDERBIKKEL
# }
# QMAKE_CXXFLAGS += -std=c++11 -Wall -Wextra -Weffc++
# unix {
#   QMAKE_CXXFLAGS += -Werror
# }

include(../../Libraries/Boost.pri) #Or use the code below
# win32 {
#   INCLUDEPATH += \
#     ../../Libraries/boost_1_54_0
# }

SOURCES += main.cpp

 

 

 

 

 

./CppBoostUnitsExample2/main.cpp

 

#include <iostream>
#include <boost/math/constants/constants.hpp>
#include <boost/units/systems/si/length.hpp>
#include <boost/units/systems/si/prefixes.hpp>
#include <boost/units/systems/si/io.hpp>
#include <boost/units/physical_dimensions/area.hpp>

int main()
{
  using namespace boost::units;
  using namespace boost::units::si;
  const double pi = boost::math::constants::pi<double>();
  const quantity<length> my_ray(2.0*micro*meter);
  const quantity<area> my_area(my_ray*my_ray*pi);

    std::cout
      << "ray = " << my_ray <<  '\n'
      << "area = " << my_area <<  '\n';
}

 

 

 

 

 

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