/usr/include/CLHEP/Random/RandomEngine.icc is in libclhep-dev 2.1.4.1-1.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | // $Id: RandomEngine.icc,v 1.4 2010/10/25 18:18:47 garren Exp $
// -*- C++ -*-
//
// -----------------------------------------------------------------------
// HEP Random
// --- HepRandomEngine ---
// inlined functions implementation file
// -----------------------------------------------------------------------
// This file is part of Geant4 (simulation toolkit for HEP).
// =======================================================================
// Gabriele Cosmo - Created: 5th September 1995
// - Added == and != operators: 19th November 1996
// - Moved seeds table to HepRandom: 19th March 1998
// =======================================================================
#include <cmath>
namespace CLHEP {
inline bool HepRandomEngine::operator==(const HepRandomEngine& engine) {
return (this==&engine);
}
inline bool HepRandomEngine::operator!=(const HepRandomEngine& engine) {
return (this!=&engine);
}
inline double HepRandomEngine::exponent_bit_32() {
static double exponent_bit_32 = std::pow(2.0, 32.0);
return exponent_bit_32;
}
inline double HepRandomEngine::mantissa_bit_12() {
static double mantissa_bit_12 = std::pow(0.5, 12.0);
return mantissa_bit_12;
}
inline double HepRandomEngine::mantissa_bit_24() {
static double mantissa_bit_24 = std::pow(0.5, 24.0);
return mantissa_bit_24;
}
inline double HepRandomEngine::twoToMinus_32() {
static double twoToMinus_32 = std::ldexp(1.0, -32);
return twoToMinus_32;
}
inline double HepRandomEngine::twoToMinus_48() {
static double twoToMinus_48 = std::ldexp(1.0, -48);
return twoToMinus_48;
}
inline double HepRandomEngine::twoToMinus_49() {
static double twoToMinus_49 = std::ldexp(1.0, -49);
return twoToMinus_49;
}
inline double HepRandomEngine::twoToMinus_53() {
static double twoToMinus_53 = std::ldexp(1.0, -53);
return twoToMinus_53;
}
inline double HepRandomEngine::nearlyTwoToMinus_54() {
static double nearlyTwoToMinus_54 = std::ldexp(1.0, -54)
- std::ldexp(1.0, -100);
return nearlyTwoToMinus_54;
}
} // namespace CLHEP
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