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Differential D87 Diff 389 src/EvtGenBase/EvtSimpleRandomEngine.cpp

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src/EvtGenBase/EvtSimpleRandomEngine.cpp

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double EvtSimpleRandomEngine::random() double EvtSimpleRandomEngine::random()
{ {
_next = _next * 1103515245 + 123345; _next = _next * 1103515245 + 123345;
unsigned temp = (unsigned)( _next / 65536 ) % 32768; unsigned temp = (unsigned)( _next / 65536 ) % 32768;
return ( temp + 1.0 ) / 32769.0; return ( temp + 1.0 ) / 32769.0;
} }
unsigned long EvtSimpleRandomEngine::urandom()
{
_next = _next * 1103515245 + 123345;
unsigned temp = (unsigned)( _next / 65536 ) % 32768;
return (long)temp << 49;
}