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(C++) BoostUnitsExample9

 

Cpp98BoostQt CreatorLubuntuWindows

 

Boost.Units example 9: calculating pressure from a force and an area is a Boost.Units example.

 

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Qt project file: ./CppBoostUnitsExample9/CppBoostUnitExample9.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

 

 

 

 

 

./CppBoostUnitsExample9/main.cpp

 

#include <iostream>

#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Weffc++"
#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
#include <boost/units/io.hpp>
#include <boost/units/systems/si.hpp>
#include <boost/units/systems/si/prefixes.hpp>
#pragma GCC diagnostic pop

int main()
{
  using boost::units::quantity;
  using boost::units::si::area;
  using boost::units::si::force;
  using boost::units::si::kilo;
  using boost::units::si::micro;
  using boost::units::si::newton;
  using boost::units::si::pascal;
  using boost::units::si::pressure;
  using boost::units::si::square_meter;

  {
    const quantity<pressure> p(2.0 * pascal);
    const quantity<force> f(6.0 * newton);
    const quantity<area> a(3.0 * square_meter);
    assert(p == f/a);
    assert(a == f/p);
    assert(f == p*a);
    assert(f == a*p);
    std::cout
      << "f: " << f << '\n'
      << "p: " << p << '\n'
      << "a: " << a << '\n';
  }
  {
    const quantity<pressure> p(2.0 * micro * newton / (kilo * square_meter));
    const quantity<force> f(6.0 * micro * newton);
    const quantity<area> a(3.0 * kilo * square_meter);
    assert(p == f/a);
    assert(a == f/p);
    assert(f == p*a);
    assert(f == a*p);
    std::cout
      << "f: " << f << '\n'
      << "p: " << p << '\n'
      << "a: " << a << '\n';
  }
}

 

 

 

 

 

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