scuffed-code/icu4c/source/test/perf/howExpensiveIs/sieve.h
2012-05-25 20:09:01 +00:00

38 lines
1.1 KiB
C

/*
**********************************************************************
* Copyright (c) 2011-2012,International Business Machines
* Corporation and others. All Rights Reserved.
**********************************************************************
*/
#ifndef SIEVE_H
#define SIEVE_H
#ifndef U_LOTS_OF_TIMES
#define U_LOTS_OF_TIMES 1000000
#endif
#include "unicode/utypes.h"
/**
* Calculate the standardized sieve time (1 run)
*/
U_INTERNAL double uprv_calcSieveTime(void);
/**
* Calculate the mean time, with margin of error
* @param times array of times (modified/sorted)
* @param timeCount length of array
* @param marginOfError out parameter: gives +/- margin of err at 95% confidence
* @return the mean time, or negative if error/imprecision.
*/
U_INTERNAL double uprv_getMeanTime(double *times, uint32_t timeCount, double *marginOfError);
/**
* Get the standardized sieve time. (Doesn't recalculate if already computed.
* @param marginOfError out parameter: gives +/- margin of error at 95% confidence.
* @return the mean time, or negative if error/imprecision.
*/
U_INTERNAL double uprv_getSieveTime(double *marginOfError);
#endif