icuSources/test/perf/howExpensiveIs/sieve.h

   1 /*
   2  **********************************************************************
   3  * Copyright (c) 2011-2012,International Business Machines
   4  * Corporation and others.  All Rights Reserved.
   5  **********************************************************************
   6  */
   7
   8 #ifndef SIEVE_H
   9 #define SIEVE_H
  10
  11 #ifndef U_LOTS_OF_TIMES
  12 #define U_LOTS_OF_TIMES 1000000
  13 #endif
  14
  15 #include "unicode/utypes.h"
  16 /**
  17  * Calculate the standardized sieve time (1 run)
  18  */
  19 U_INTERNAL double uprv_calcSieveTime(void);
  20
  21 /**
  22  * Calculate the mean time, with margin of error
  23  * @param times array of times (modified/sorted)
  24  * @param timeCount length of array - on return, how many remain after throwing out outliers
  25  * @param marginOfError out parameter: gives +/- margin of err at 95% confidence
  26  * @return the mean time, or negative if error/imprecision.
  27  */
  28 U_INTERNAL double uprv_getMeanTime(double *times, uint32_t *timeCount, double *marginOfError);
  29
  30 /**
  31  * Get the standardized sieve time. (Doesn't recalculate if already computed.
  32  * @param marginOfError out parameter: gives +/- margin of error at 95% confidence.
  33  * @return the mean time, or negative if error/imprecision.
  34  */
  35 U_INTERNAL double uprv_getSieveTime(double *marginOfError);
  36
  37 #endif