Gabriele Cosmo
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
// -*- C++ -*-
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//
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// -----------------------------------------------------------------------
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// HEP Random
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// --- HepRandomEngine ---
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// inlined functions implementation file
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// -----------------------------------------------------------------------
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// This file is part of Geant4 (simulation toolkit for HEP).
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// =======================================================================
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// Gabriele Cosmo - Created: 5th September 1995
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// - Added == and != operators: 19th November 1996
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// - Moved seeds table to HepRandom: 19th March 1998
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// =======================================================================
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#include <cmath>
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namespace CLHEP {
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inline bool HepRandomEngine::operator==(const HepRandomEngine& engine) {
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return (this==&engine);
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}
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inline bool HepRandomEngine::operator!=(const HepRandomEngine& engine) {
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return (this!=&engine);
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}
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inline double HepRandomEngine::exponent_bit_32() {
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static const double exponent_bit_32 = std::pow(2.0, 32.0);
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return exponent_bit_32;
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}
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inline double HepRandomEngine::mantissa_bit_12() {
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static const double mantissa_bit_12 = std::pow(0.5, 12.0);
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return mantissa_bit_12;
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}
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inline double HepRandomEngine::mantissa_bit_24() {
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static const double mantissa_bit_24 = std::pow(0.5, 24.0);
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return mantissa_bit_24;
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}
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inline double HepRandomEngine::twoToMinus_32() {
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static const double twoToMinus_32 = std::ldexp(1.0, -32);
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return twoToMinus_32;
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}
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inline double HepRandomEngine::twoToMinus_48() {
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static const double twoToMinus_48 = std::ldexp(1.0, -48);
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return twoToMinus_48;
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}
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inline double HepRandomEngine::twoToMinus_49() {
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static const double twoToMinus_49 = std::ldexp(1.0, -49);
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return twoToMinus_49;
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}
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inline double HepRandomEngine::twoToMinus_53() {
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static const double twoToMinus_53 = std::ldexp(1.0, -53);
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return twoToMinus_53;
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}
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inline double HepRandomEngine::nearlyTwoToMinus_54() {
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static const double nearlyTwoToMinus_54 = std::ldexp(1.0, -54)
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- std::ldexp(1.0, -100);
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return nearlyTwoToMinus_54;
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}
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} // namespace CLHEP
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