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fixed the precision problem in converting double to long long int (0.0000325 *1E9), cant find another example

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Dhanya Maliakal 2017-06-13 12:58:56 +02:00
parent 3d8903b2da
commit cb7b8713cf
1 changed files with 8 additions and 4 deletions
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12
slsDetectorSoftware/slsDetector/slsDetectorCommand.cpp
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@ -4212,12 +4212,16 @@ string slsDetectorCommand::cmdTimer(int narg, char *args[], int action) {
if (action==PUT_ACTION) {
if (sscanf(args[1],"%lf", &val))
;
;//printf("value:%0.9lf\n",val);
else
return string("cannot scan timer value ")+string(args[1]);
if (index==ACQUISITION_TIME || index==SUBFRAME_ACQUISITION_TIME || index==FRAME_PERIOD || index==DELAY_AFTER_TRIGGER)
t=(int64_t)(val*1E+9);
else t=(int64_t)val;
if (index==ACQUISITION_TIME || index==SUBFRAME_ACQUISITION_TIME || index==FRAME_PERIOD || index==DELAY_AFTER_TRIGGER) {
// t=(int64_t)(val*1E+9); for precision of eg.0.0000325, following done
val*=1E9;
t = (int64_t)val;
if(fabs(val-t)) // to validate precision loss
t = t + val - t; //even t += vak-t loses precision
}else t=(int64_t)val;
}