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25 //
26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France
33 //
34 #define INCLXX_IN_GEANT4_MODE 1
35
36 #include "globals.hh"
37
38 #ifndef G4INCLGlobals_hh
39 #define G4INCLGlobals_hh 1
40
41 #include <cmath>
42 #include <string>
43 #include <vector>
44 #include "G4INCLParticleType.hh"
45
46 namespace G4INCL {
47 class Particle;
48
49 namespace PhysicalConstants {
50 /// \brief \f$\hbar c\f$ [MeV*fm]
51 const G4double hc = 197.328;
52
53 /// \brief \f$\hbar^2 c^2\f$ [MeV^2*fm^2]
54 const G4double hcSquared = hc*hc;
55
56 /// \brief Fermi momentum [MeV/c]
57 const G4double Pf = 1.37*hc;
58 // const G4double Pf = 1.36828*hc;
59
60 /** \brief Coulomb conversion factor [MeV*fm]
61 *
62 * \f[ e^2/(4 pi epsilon_0) \f]
63 */
64 const G4double eSquared = 1.439964;
65 }
66
67 namespace Math {
68 const G4double pi = 3.14159265358979323846264338328;
69 const G4double twoPi = 2.0 * pi;
70 const G4double tenPi = 10.0 * pi;
71 const G4double piOverTwo = 0.5 * pi;
72 const G4double oneOverSqrtTwo = 1./std::sqrt((G4double)2.);
73 const G4double oneOverSqrtThree = 1./std::sqrt((G4double)3.);
74 const G4double oneThird = 1./3.;
75 const G4double twoThirds = 2./3.;
76 const G4double sqrtFiveThirds = std::sqrt(5./3.);
77 const G4double sqrtThreeFifths = std::sqrt(3./5.);
78
79 inline G4double toDegrees(G4double radians) {
80 return radians * (180.0 / pi);
81 }
82
83 inline G4int heaviside(G4int n) {
84 if(n < 0) return 0;
85 else return 1;
86 }
87
88 inline G4double pow13(G4double x) {
89 return std::pow(x, oneThird);
90 }
91
92 inline G4double powMinus13(G4double x) {
93 return std::pow(x, -oneThird);
94 }
95
96 inline G4double pow23(G4double x) {
97 return std::pow(x, twoThirds);
98 }
99
100 inline G4double aSinH(G4double x) {
101 return std::log(x + std::sqrt(x*x+1.));
102 }
103
104 /**
105 * A simple sign function that allows us to port fortran code to c++ more easily.
106 */
107 template <typename T> inline G4int sign(const T t) {
108 return t > 0 ? 1: t < 0 ? -1 : 0;
109 }
110
111 /// brief Return the largest of the two arguments
112 template <typename T> inline T max(const T t1, const T t2) {
113 return t1 > t2 ? t1 : t2;
114 }
115
116 /// brief Return the smallest of the two arguments
117 template <typename T> inline T min(const T t1, const T t2) {
118 return t1 < t2 ? t1 : t2;
119 }
120
121 /** \brief Cumulative distribution function for Gaussian
122 *
123 * A public-domain approximation taken from Abramowitz and Stegun. Applies
124 * to a Gaussian with mean=0 and sigma=1.
125 *
126 * \param x a Gaussian variable
127 */
128 G4double gaussianCDF(const G4double x);
129
130 /** \brief Generic cumulative distribution function for Gaussian
131 *
132 * A public-domain approximation taken from Abramowitz and Stegun. Applies
133 * to a generic Gaussian.
134 *
135 * \param x a Gaussian variable
136 * \param x0 mean of the Gaussian
137 * \param sigma standard deviation of the Gaussian
138 */
139 G4double gaussianCDF(const G4double x, const G4double x0, const G4double sigma);
140
141 /** \brief Inverse cumulative distribution function for Gaussian
142 *
143 * A public-domain approximation taken from Abramowitz and Stegun. Applies
144 * to a Gaussian with mean=0 and sigma=1.
145 *
146 * \param x a uniform variate
147 * \return a Gaussian variate
148 */
149 G4double inverseGaussianCDF(const G4double x);
150
151 /// \brief Calculates arcsin with some tolerance on illegal arguments
152 G4double arcSin(const G4double x);
153
154 /// \brief Calculates arccos with some tolerance on illegal arguments
155 G4double arcCos(const G4double x);
156 }
157
158 namespace ParticleConfig {
159 G4bool isPair(Particle const * const p1, Particle const * const p2, ParticleType t1, ParticleType t2);
160 }
161
162 #ifndef INCLXX_IN_GEANT4_MODE
163 namespace String {
164 void wrap(std::string &str, const size_t lineLength=78, const std::string &separators=" \t");
165 void replaceAll(std::string &str, const std::string &from, const std::string &to, const size_t maxPosition=std::string::npos);
166 std::vector<std::string> tokenize(std::string const &str, const std::string &delimiters);
167 G4bool isInteger(std::string const &str);
168 std::string expandPath(std::string const &path);
169 }
170 #endif
171 }
172 #endif
173