Constants.h

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// --------------------------------------------------------------------------
//                   OpenMS -- Open-Source Mass Spectrometry
// --------------------------------------------------------------------------
// Copyright The OpenMS Team -- Eberhard Karls University Tuebingen,
// ETH Zurich, and Freie Universitaet Berlin 2002-2018.
//
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//    may be used to endorse or promote products derived from this software
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// $Maintainer: Timo Sachsenberg$
// $Authors: Marc Sturm $
// --------------------------------------------------------------------------

#pragma once

#include <OpenMS/config.h>
#include <string>

namespace OpenMS
{
  namespace Constants
  {

    extern OPENMS_DLLAPI const double  PI;

    extern OPENMS_DLLAPI const double  E;

    extern OPENMS_DLLAPI double EPSILON;


    extern OPENMS_DLLAPI const double   ELEMENTARY_CHARGE;           // C

    extern OPENMS_DLLAPI const double   e0;

    extern OPENMS_DLLAPI const double   ELECTRON_MASS;                   // kg

    extern OPENMS_DLLAPI const double ELECTRON_MASS_U;             // u

    extern OPENMS_DLLAPI const double   PROTON_MASS;                     // kg

    extern OPENMS_DLLAPI const double PROTON_MASS_U;               // u

    extern OPENMS_DLLAPI const double C13C12_MASSDIFF_U;     // u

    extern OPENMS_DLLAPI const double   NEUTRON_MASS;                    // kg

    extern OPENMS_DLLAPI const double NEUTRON_MASS_U;              // u

    extern OPENMS_DLLAPI const double   AVOGADRO;

    extern OPENMS_DLLAPI const double   NA;

    extern OPENMS_DLLAPI const double   MOL;

    extern OPENMS_DLLAPI const double   BOLTZMANN;

    extern OPENMS_DLLAPI const double   k;

    extern OPENMS_DLLAPI const double   PLANCK;

    extern OPENMS_DLLAPI const double   h;

    extern OPENMS_DLLAPI const double   GAS_CONSTANT;

    extern OPENMS_DLLAPI const double R;

    extern OPENMS_DLLAPI const double   FARADAY;

    extern OPENMS_DLLAPI const double   F;

    extern OPENMS_DLLAPI const double   BOHR_RADIUS;

    extern OPENMS_DLLAPI const double   a0;

    //  the following values from:
    //  P.W.Atkins: Physical Chemistry, 5th ed., Oxford University Press, 1995

    extern OPENMS_DLLAPI const double   VACUUM_PERMITTIVITY;

    extern OPENMS_DLLAPI const double   VACUUM_PERMEABILITY;

    extern OPENMS_DLLAPI const double   SPEED_OF_LIGHT;

    extern OPENMS_DLLAPI const double   c;

    extern OPENMS_DLLAPI const double   GRAVITATIONAL_CONSTANT;

    extern OPENMS_DLLAPI const double   FINE_STRUCTURE_CONSTANT;


    extern OPENMS_DLLAPI const double   DEG_PER_RAD;

    extern OPENMS_DLLAPI const double   RAD_PER_DEG;

    extern OPENMS_DLLAPI const double   MM_PER_INCH;

    extern OPENMS_DLLAPI const double   M_PER_FOOT;

    extern OPENMS_DLLAPI const double   JOULE_PER_CAL;

    extern OPENMS_DLLAPI const double   CAL_PER_JOULE;

    extern OPENMS_DLLAPI const std::string   PRECURSOR_ERROR_PPM_USERPARAM;

    extern OPENMS_DLLAPI const std::string   FRAGMENT_ANNOTATION_USERPARAM;


  }
}