/* TA-LIB Copyright (c) 1999-2025, Mario Fortier
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
*   notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above copyright
*   notice, this list of conditions and the following disclaimer in
*   the documentation and/or other materials provided with the
*   distribution.
*
* - Neither name of author nor the names of its contributors
*   may be used to endorse or promote products derived from this
*   software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/* AUTO-GENERATED by ta_codegen — DO NOT EDIT.
* Source of truth: ta_codegen/input/<name>/  (regenerate: cd ta_codegen/generator && cargo run -- generate)
*/

#include <string.h>
#include <math.h>
#include "ta_func.h"
#include "ta_utility.h"
#include "ta_memory.h"
#include "ta_func_unguarded.h"

/* List of contributors:
 *
 *  Initial  Name/description
 *  -------------------------------------------------------------------
 *  MF       Mario Fortier
 *  PP       Peter Pudaite
 *  CF       Christo Fogelberg
 *
 * Change history:
 *
 *  MMDDYY BY    Description
 *  -------------------------------------------------------------------
 *  120802 MF    Template creation.
 *  091503 PP    Reworked TA_SAR to allow customisation of more SAR params.
 *  092103 MF    Some changes related on first round of tests
 *  092303 PP    Minor bug fixes.
 *  122104 MF,CF Fix#1089506 for out-of-bound access to ep_temp.
 */

TA_LIB_API int TA_SAREXT_Lookback( double optInStartValue, double optInOffsetOnReverse, double optInAccelerationInitLong, double optInAccelerationLong, double optInAccelerationMaxLong, double optInAccelerationInitShort, double optInAccelerationShort, double optInAccelerationMaxShort )
{
   if( optInStartValue == -4e37 )
      optInStartValue = 0;
   if( optInOffsetOnReverse == -4e37 )
      optInOffsetOnReverse = 0;
   else if( optInOffsetOnReverse < 0e0 || optInOffsetOnReverse > 1.7976931348623157e308 )
      return -1;
   if( optInAccelerationInitLong == -4e37 )
      optInAccelerationInitLong = 0.02;
   else if( optInAccelerationInitLong < 0e0 || optInAccelerationInitLong > 1.7976931348623157e308 )
      return -1;
   if( optInAccelerationLong == -4e37 )
      optInAccelerationLong = 0.02;
   else if( optInAccelerationLong < 0e0 || optInAccelerationLong > 1.7976931348623157e308 )
      return -1;
   if( optInAccelerationMaxLong == -4e37 )
      optInAccelerationMaxLong = 0.2;
   else if( optInAccelerationMaxLong < 0e0 || optInAccelerationMaxLong > 1.7976931348623157e308 )
      return -1;
   if( optInAccelerationInitShort == -4e37 )
      optInAccelerationInitShort = 0.02;
   else if( optInAccelerationInitShort < 0e0 || optInAccelerationInitShort > 1.7976931348623157e308 )
      return -1;
   if( optInAccelerationShort == -4e37 )
      optInAccelerationShort = 0.02;
   else if( optInAccelerationShort < 0e0 || optInAccelerationShort > 1.7976931348623157e308 )
      return -1;
   if( optInAccelerationMaxShort == -4e37 )
      optInAccelerationMaxShort = 0.2;
   else if( optInAccelerationMaxShort < 0e0 || optInAccelerationMaxShort > 1.7976931348623157e308 )
      return -1;
   /* SAR always sacrifices one price bar to establish the
    * initial extreme price.
    */
   return 1;
}

TA_LIB_API TA_RetCode TA_SAREXT( int    startIdx,
                                 int    endIdx,
                                 const double inHigh[],
                                 const double inLow[],
                                 double optInStartValue,
                                 double optInOffsetOnReverse,
                                 double optInAccelerationInitLong,
                                 double optInAccelerationLong,
                                 double optInAccelerationMaxLong,
                                 double optInAccelerationInitShort,
                                 double optInAccelerationShort,
                                 double optInAccelerationMaxShort,
                                 int          *outBegIdx,
                                 int          *outNBElement,
                                 double        outReal[] )
{
   TA_RetCode retCode;
   int isLong;
   int todayIdx;
   int outIdx;
   int tempInt;
   double newHigh;
   double newLow;
   double prevHigh;
   double prevLow;
   double afLong;
   double afShort;
   double ep;
   double sar;
   double ep_temp[1];

   if( startIdx < 0 )
      return TA_OUT_OF_RANGE_START_INDEX;
   if( (endIdx < 0) || (endIdx < startIdx) )
      return TA_OUT_OF_RANGE_END_INDEX;

   if( !inHigh )
      return TA_BAD_PARAM;
   if( !inLow )
      return TA_BAD_PARAM;
   if( optInStartValue == -4e37 )
      optInStartValue = 0;
   if( optInOffsetOnReverse == -4e37 )
      optInOffsetOnReverse = 0;
   else if( optInOffsetOnReverse < 0e0 || optInOffsetOnReverse > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationInitLong == -4e37 )
      optInAccelerationInitLong = 0.02;
   else if( optInAccelerationInitLong < 0e0 || optInAccelerationInitLong > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationLong == -4e37 )
      optInAccelerationLong = 0.02;
   else if( optInAccelerationLong < 0e0 || optInAccelerationLong > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationMaxLong == -4e37 )
      optInAccelerationMaxLong = 0.2;
   else if( optInAccelerationMaxLong < 0e0 || optInAccelerationMaxLong > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationInitShort == -4e37 )
      optInAccelerationInitShort = 0.02;
   else if( optInAccelerationInitShort < 0e0 || optInAccelerationInitShort > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationShort == -4e37 )
      optInAccelerationShort = 0.02;
   else if( optInAccelerationShort < 0e0 || optInAccelerationShort > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationMaxShort == -4e37 )
      optInAccelerationMaxShort = 0.2;
   else if( optInAccelerationMaxShort < 0e0 || optInAccelerationMaxShort > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( !outReal )
      return TA_BAD_PARAM;

   /* > 0 indicates long. == 0 indicates short */
   /* This function is the same as TA_SAR, except that the caller has
    * greater control on the SAR dynamic and initial state.
    *
    * In additon, the TA_SAREXT returns negative values when the position
    * is short. This allow to distinguish when the SAR do actually reverse.
    */
   /* Implementation of the SAR has been a little bit open to interpretation
    * since Wilder (the original author) did not define a precise algorithm
    * on how to bootstrap the algorithm. Take any existing software application
    * and you will see slight variation on how the algorithm was adapted.
    *
    * What is the initial trade direction? Long or short?
    * ===================================================
    * The interpretation of what should be the initial SAR values is
    * open to interpretation, particularly since the caller to the function
    * does not specify the initial direction of the trade.
    *
    * In TA-Lib, the following default logic is used:
    *  - Calculate +DM and -DM between the first and
    *    second bar. The highest directional indication will
    *    indicate the assumed direction of the trade for the second
    *    price bar.
    *  - In the case of a tie between +DM and -DM,
    *    the direction is LONG by default.
    *
    * What is the initial "extreme point" and thus SAR?
    * =================================================
    * The following shows how different people took different approach:
    *  - Metastock use the first price bar high/low depending of
    *    the direction. No SAR is calculated for the first price
    *    bar.
    *  - Tradestation use the closing price of the second bar. No
    *    SAR are calculated for the first price bar.
    *  - Wilder (the original author) use the SIP from the
    *    previous trade (cannot be implement here since the
    *    direction and length of the previous trade is unknonw).
    *  - The Magazine TASC seems to follow Wilder approach which
    *    is not practical here.
    *
    * TA-Lib "consume" the first price bar and use its high/low as the
    * initial SAR of the second price bar. I found that approach to be
    * the closest to Wilders idea of having the first entry day use
    * the previous extreme point, except that here the extreme point is
    * derived solely from the first price bar. I found the same approach
    * to be used by Metastock.
    *
    *
    * Can I force the initial SAR?
    * ============================
    * Yes. Using the optInStartValue_0 parameter:
    *  optInStartValue_0 >  0 : SAR is long at optInStartValue_0.
    *  optInStartValue_0 <  0 : SAR is short at fabs(optInStartValue_0).
    *
    * And when optInStartValue_0 == 0, the logic is the same as for TA_SAR
    * (See previous two sections).
    */
   /* Identify the minimum number of price bar needed
    * to calculate at least one output.
    *
    * Move up the start index if there is not
    * enough initial data.
    */
   if( startIdx < 1 )
   {
      startIdx = 1;
   }
   /* Make sure there is still something to evaluate. */
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   /* Check if the acceleration factors are being defined by the user.
    * Make sure the acceleration and maximum are coherent.
    * If not, correct the acceleration.
    * Default afLong = 0.02
    * Default afShort = 0.02
    */
   afLong = optInAccelerationInitLong;
   afShort = optInAccelerationInitShort;
   if( afLong > optInAccelerationMaxLong )
   {
      optInAccelerationInitLong = optInAccelerationMaxLong;
      afLong = optInAccelerationInitLong;
   }
   if( optInAccelerationLong > optInAccelerationMaxLong )
   {
      optInAccelerationLong = optInAccelerationMaxLong;
   }
   if( afShort > optInAccelerationMaxShort )
   {
      optInAccelerationInitShort = optInAccelerationMaxShort;
      afShort = optInAccelerationInitShort;
   }
   if( optInAccelerationShort > optInAccelerationMaxShort )
   {
      optInAccelerationShort = optInAccelerationMaxShort;
   }
   /* Initialise SAR calculations */
   if( optInStartValue == 0 )
   {
      /* Default action */
      /* Identify if the initial direction is long or short.
       * (ep is just used as a temp buffer here, the name
       *  of the parameter is not significant).
       */
      retCode = TA_MINUS_DM_Unguarded(startIdx,startIdx,inHigh,inLow,1,&tempInt,&tempInt,ep_temp);
      if( ep_temp[0] > 0 )
      {
         isLong = 0;
      } else 
      {
         isLong = 1;
      }
      if( retCode != TA_SUCCESS )
      {
         *outBegIdx= 0;
         *outNBElement= 0;
         return retCode;
      }
   } else if( optInStartValue > 0 )
   {
      /* Start Long */
      isLong = 1;
   } else 
   {
      /* optInStartValue_0 < 0 => Start Short */
      isLong = 0;
   }
   *outBegIdx= startIdx;
   outIdx = 0;
   /* Write the first SAR. */
   todayIdx = startIdx;
   newHigh = inHigh[todayIdx - 1];
   newLow = inLow[todayIdx - 1];
   if( optInStartValue == 0 )
   {
      /* Default action */
      if( isLong == 1 )
      {
         ep = inHigh[todayIdx];
         sar = newLow;
      } else 
      {
         ep = inLow[todayIdx];
         sar = newHigh;
      }
   } else if( optInStartValue > 0 )
   {
      /* Start Long at specified value. */
      ep = inHigh[todayIdx];
      sar = optInStartValue;
   } else 
   {
      /* if optInStartValue < 0 => Start Short at specified value. */
      ep = inLow[todayIdx];
      sar = fabs(optInStartValue);
   }
   /* Cheat on the newLow and newHigh for the
    * first iteration.
    */
   newLow = inLow[todayIdx];
   newHigh = inHigh[todayIdx];
   while( todayIdx <= endIdx )
   {
      prevLow = newLow;
      prevHigh = newHigh;
      newLow = inLow[todayIdx];
      newHigh = inHigh[todayIdx];
      todayIdx += 1;
      if( isLong == 1 )
      {
         /* Switch to short if the low penetrates the SAR value. */
         if( newLow <= sar )
         {
            /* Switch and Overide the SAR with the ep */
            isLong = 0;
            sar = ep;
            /* Make sure the overide SAR is within
             * yesterday's and today's range.
             */
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
            /* Output the overide SAR */
            if( optInOffsetOnReverse != 0.0 )
            {
               sar += sar * optInOffsetOnReverse;
            }
            outReal[outIdx++] = 0 - sar;
            /* Adjust afShort and ep */
            afShort = optInAccelerationInitShort;
            ep = newLow;
            /* Calculate the new SAR */
            sar = sar + afShort * (ep - sar);
            /* Make sure the new SAR is within
             * yesterday's and today's range.
             */
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
         } else 
         {
            /* No switch */
            /* Output the SAR (was calculated in the previous iteration) */
            outReal[outIdx++] = sar;
            /* Adjust afLong and ep. */
            if( newHigh > ep )
            {
               ep = newHigh;
               afLong += optInAccelerationLong;
               if( afLong > optInAccelerationMaxLong )
               {
                  afLong = optInAccelerationMaxLong;
               }
            }
            /* Calculate the new SAR */
            sar = sar + afLong * (ep - sar);
            /* Make sure the new SAR is within
             * yesterday's and today's range.
             */
            if( sar > prevLow )
            {
               sar = prevLow;
            }
            if( sar > newLow )
            {
               sar = newLow;
            }
         }
      /* Switch to long if the high penetrates the SAR value. */
      } else if( newHigh >= sar )
      {
         /* Switch and Overide the SAR with the ep */
         isLong = 1;
         sar = ep;
         /* Make sure the overide SAR is within
          * yesterday's and today's range.
          */
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
         /* Output the overide SAR */
         if( optInOffsetOnReverse != 0.0 )
         {
            sar -= sar * optInOffsetOnReverse;
         }
         outReal[outIdx++] = sar;
         /* Adjust afLong and ep */
         afLong = optInAccelerationInitLong;
         ep = newHigh;
         /* Calculate the new SAR */
         sar = sar + afLong * (ep - sar);
         /* Make sure the new SAR is within
          * yesterday's and today's range.
          */
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
      } else 
      {
         /* No switch */
         /* Output the SAR (was calculated in the previous iteration) */
         outReal[outIdx++] = 0 - sar;
         /* Adjust afShort and ep. */
         if( newLow < ep )
         {
            ep = newLow;
            afShort += optInAccelerationShort;
            if( afShort > optInAccelerationMaxShort )
            {
               afShort = optInAccelerationMaxShort;
            }
         }
         /* Calculate the new SAR */
         sar = sar + afShort * (ep - sar);
         /* Make sure the new SAR is within
          * yesterday's and today's range.
          */
         if( sar < prevHigh )
         {
            sar = prevHigh;
         }
         if( sar < newHigh )
         {
            sar = newHigh;
         }
      }
   }
   *outNBElement= outIdx;
   return TA_SUCCESS;
}

TA_LIB_API TA_RetCode TA_SAREXT_Unguarded( int    startIdx,
                                           int    endIdx,
                                           const double inHigh[],
                                           const double inLow[],
                                           double optInStartValue,
                                           double optInOffsetOnReverse,
                                           double optInAccelerationInitLong,
                                           double optInAccelerationLong,
                                           double optInAccelerationMaxLong,
                                           double optInAccelerationInitShort,
                                           double optInAccelerationShort,
                                           double optInAccelerationMaxShort,
                                           int          *outBegIdx,
                                           int          *outNBElement,
                                           double        outReal[] )
{
   TA_RetCode retCode;
   int isLong;
   int todayIdx;
   int outIdx;
   int tempInt;
   double newHigh;
   double newLow;
   double prevHigh;
   double prevLow;
   double afLong;
   double afShort;
   double ep;
   double sar;
   double ep_temp[1];

   if( startIdx < 1 )
   {
      startIdx = 1;
   }
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   afLong = optInAccelerationInitLong;
   afShort = optInAccelerationInitShort;
   if( afLong > optInAccelerationMaxLong )
   {
      optInAccelerationInitLong = optInAccelerationMaxLong;
      afLong = optInAccelerationInitLong;
   }
   if( optInAccelerationLong > optInAccelerationMaxLong )
   {
      optInAccelerationLong = optInAccelerationMaxLong;
   }
   if( afShort > optInAccelerationMaxShort )
   {
      optInAccelerationInitShort = optInAccelerationMaxShort;
      afShort = optInAccelerationInitShort;
   }
   if( optInAccelerationShort > optInAccelerationMaxShort )
   {
      optInAccelerationShort = optInAccelerationMaxShort;
   }
   if( optInStartValue == 0 )
   {
      retCode = TA_MINUS_DM_Unguarded(startIdx,startIdx,inHigh,inLow,1,&tempInt,&tempInt,ep_temp);
      if( ep_temp[0] > 0 )
      {
         isLong = 0;
      } else 
      {
         isLong = 1;
      }
      if( retCode != TA_SUCCESS )
      {
         *outBegIdx= 0;
         *outNBElement= 0;
         return retCode;
      }
   } else if( optInStartValue > 0 )
   {
      isLong = 1;
   } else 
   {
      isLong = 0;
   }
   *outBegIdx= startIdx;
   outIdx = 0;
   todayIdx = startIdx;
   newHigh = inHigh[todayIdx - 1];
   newLow = inLow[todayIdx - 1];
   if( optInStartValue == 0 )
   {
      if( isLong == 1 )
      {
         ep = inHigh[todayIdx];
         sar = newLow;
      } else 
      {
         ep = inLow[todayIdx];
         sar = newHigh;
      }
   } else if( optInStartValue > 0 )
   {
      ep = inHigh[todayIdx];
      sar = optInStartValue;
   } else 
   {
      ep = inLow[todayIdx];
      sar = fabs(optInStartValue);
   }
   newLow = inLow[todayIdx];
   newHigh = inHigh[todayIdx];
   while( todayIdx <= endIdx )
   {
      prevLow = newLow;
      prevHigh = newHigh;
      newLow = inLow[todayIdx];
      newHigh = inHigh[todayIdx];
      todayIdx += 1;
      if( isLong == 1 )
      {
         if( newLow <= sar )
         {
            isLong = 0;
            sar = ep;
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
            if( optInOffsetOnReverse != 0.0 )
            {
               sar += sar * optInOffsetOnReverse;
            }
            outReal[outIdx++] = 0 - sar;
            afShort = optInAccelerationInitShort;
            ep = newLow;
            sar = sar + afShort * (ep - sar);
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
         } else 
         {
            outReal[outIdx++] = sar;
            if( newHigh > ep )
            {
               ep = newHigh;
               afLong += optInAccelerationLong;
               if( afLong > optInAccelerationMaxLong )
               {
                  afLong = optInAccelerationMaxLong;
               }
            }
            sar = sar + afLong * (ep - sar);
            if( sar > prevLow )
            {
               sar = prevLow;
            }
            if( sar > newLow )
            {
               sar = newLow;
            }
         }
      } else if( newHigh >= sar )
      {
         isLong = 1;
         sar = ep;
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
         if( optInOffsetOnReverse != 0.0 )
         {
            sar -= sar * optInOffsetOnReverse;
         }
         outReal[outIdx++] = sar;
         afLong = optInAccelerationInitLong;
         ep = newHigh;
         sar = sar + afLong * (ep - sar);
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
      } else 
      {
         outReal[outIdx++] = 0 - sar;
         if( newLow < ep )
         {
            ep = newLow;
            afShort += optInAccelerationShort;
            if( afShort > optInAccelerationMaxShort )
            {
               afShort = optInAccelerationMaxShort;
            }
         }
         sar = sar + afShort * (ep - sar);
         if( sar < prevHigh )
         {
            sar = prevHigh;
         }
         if( sar < newHigh )
         {
            sar = newHigh;
         }
      }
   }
   *outNBElement= outIdx;
   return TA_SUCCESS;
}

TA_RetCode TA_S_SAREXT( int    startIdx,
                        int    endIdx,
                        const float inHigh[],
                        const float inLow[],
                        double optInStartValue,
                        double optInOffsetOnReverse,
                        double optInAccelerationInitLong,
                        double optInAccelerationLong,
                        double optInAccelerationMaxLong,
                        double optInAccelerationInitShort,
                        double optInAccelerationShort,
                        double optInAccelerationMaxShort,
                        int          *outBegIdx,
                        int          *outNBElement,
                        double        outReal[] )
{
   TA_RetCode retCode;
   int isLong;
   int todayIdx;
   int outIdx;
   int tempInt;
   double newHigh;
   double newLow;
   double prevHigh;
   double prevLow;
   double afLong;
   double afShort;
   double ep;
   double sar;
   double ep_temp[1];

   if( startIdx < 0 )
      return TA_OUT_OF_RANGE_START_INDEX;
   if( (endIdx < 0) || (endIdx < startIdx) )
      return TA_OUT_OF_RANGE_END_INDEX;

   if( !inHigh )
      return TA_BAD_PARAM;
   if( !inLow )
      return TA_BAD_PARAM;
   if( optInStartValue == -4e37 )
      optInStartValue = 0;
   if( optInOffsetOnReverse == -4e37 )
      optInOffsetOnReverse = 0;
   else if( optInOffsetOnReverse < 0e0 || optInOffsetOnReverse > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationInitLong == -4e37 )
      optInAccelerationInitLong = 0.02;
   else if( optInAccelerationInitLong < 0e0 || optInAccelerationInitLong > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationLong == -4e37 )
      optInAccelerationLong = 0.02;
   else if( optInAccelerationLong < 0e0 || optInAccelerationLong > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationMaxLong == -4e37 )
      optInAccelerationMaxLong = 0.2;
   else if( optInAccelerationMaxLong < 0e0 || optInAccelerationMaxLong > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationInitShort == -4e37 )
      optInAccelerationInitShort = 0.02;
   else if( optInAccelerationInitShort < 0e0 || optInAccelerationInitShort > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationShort == -4e37 )
      optInAccelerationShort = 0.02;
   else if( optInAccelerationShort < 0e0 || optInAccelerationShort > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( optInAccelerationMaxShort == -4e37 )
      optInAccelerationMaxShort = 0.2;
   else if( optInAccelerationMaxShort < 0e0 || optInAccelerationMaxShort > 1.7976931348623157e308 )
      return TA_BAD_PARAM;
   if( !outReal )
      return TA_BAD_PARAM;

   if( startIdx < 1 )
   {
      startIdx = 1;
   }
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   afLong = optInAccelerationInitLong;
   afShort = optInAccelerationInitShort;
   if( afLong > optInAccelerationMaxLong )
   {
      optInAccelerationInitLong = optInAccelerationMaxLong;
      afLong = optInAccelerationInitLong;
   }
   if( optInAccelerationLong > optInAccelerationMaxLong )
   {
      optInAccelerationLong = optInAccelerationMaxLong;
   }
   if( afShort > optInAccelerationMaxShort )
   {
      optInAccelerationInitShort = optInAccelerationMaxShort;
      afShort = optInAccelerationInitShort;
   }
   if( optInAccelerationShort > optInAccelerationMaxShort )
   {
      optInAccelerationShort = optInAccelerationMaxShort;
   }
   if( optInStartValue == 0 )
   {
      retCode = TA_S_MINUS_DM_Unguarded(startIdx,startIdx,inHigh,inLow,1,&tempInt,&tempInt,ep_temp);
      if( ep_temp[0] > 0 )
      {
         isLong = 0;
      } else 
      {
         isLong = 1;
      }
      if( retCode != TA_SUCCESS )
      {
         *outBegIdx= 0;
         *outNBElement= 0;
         return retCode;
      }
   } else if( optInStartValue > 0 )
   {
      isLong = 1;
   } else 
   {
      isLong = 0;
   }
   *outBegIdx= startIdx;
   outIdx = 0;
   todayIdx = startIdx;
   newHigh = inHigh[todayIdx - 1];
   newLow = inLow[todayIdx - 1];
   if( optInStartValue == 0 )
   {
      if( isLong == 1 )
      {
         ep = inHigh[todayIdx];
         sar = newLow;
      } else 
      {
         ep = inLow[todayIdx];
         sar = newHigh;
      }
   } else if( optInStartValue > 0 )
   {
      ep = inHigh[todayIdx];
      sar = optInStartValue;
   } else 
   {
      ep = inLow[todayIdx];
      sar = fabs(optInStartValue);
   }
   newLow = inLow[todayIdx];
   newHigh = inHigh[todayIdx];
   while( todayIdx <= endIdx )
   {
      prevLow = newLow;
      prevHigh = newHigh;
      newLow = inLow[todayIdx];
      newHigh = inHigh[todayIdx];
      todayIdx += 1;
      if( isLong == 1 )
      {
         if( newLow <= sar )
         {
            isLong = 0;
            sar = ep;
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
            if( optInOffsetOnReverse != 0.0 )
            {
               sar += sar * optInOffsetOnReverse;
            }
            outReal[outIdx++] = 0 - sar;
            afShort = optInAccelerationInitShort;
            ep = newLow;
            sar = sar + afShort * (ep - sar);
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
         } else 
         {
            outReal[outIdx++] = sar;
            if( newHigh > ep )
            {
               ep = newHigh;
               afLong += optInAccelerationLong;
               if( afLong > optInAccelerationMaxLong )
               {
                  afLong = optInAccelerationMaxLong;
               }
            }
            sar = sar + afLong * (ep - sar);
            if( sar > prevLow )
            {
               sar = prevLow;
            }
            if( sar > newLow )
            {
               sar = newLow;
            }
         }
      } else if( newHigh >= sar )
      {
         isLong = 1;
         sar = ep;
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
         if( optInOffsetOnReverse != 0.0 )
         {
            sar -= sar * optInOffsetOnReverse;
         }
         outReal[outIdx++] = sar;
         afLong = optInAccelerationInitLong;
         ep = newHigh;
         sar = sar + afLong * (ep - sar);
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
      } else 
      {
         outReal[outIdx++] = 0 - sar;
         if( newLow < ep )
         {
            ep = newLow;
            afShort += optInAccelerationShort;
            if( afShort > optInAccelerationMaxShort )
            {
               afShort = optInAccelerationMaxShort;
            }
         }
         sar = sar + afShort * (ep - sar);
         if( sar < prevHigh )
         {
            sar = prevHigh;
         }
         if( sar < newHigh )
         {
            sar = newHigh;
         }
      }
   }
   *outNBElement= outIdx;
   return TA_SUCCESS;
}

TA_RetCode TA_S_SAREXT_Unguarded( int    startIdx,
                                  int    endIdx,
                                  const float inHigh[],
                                  const float inLow[],
                                  double optInStartValue,
                                  double optInOffsetOnReverse,
                                  double optInAccelerationInitLong,
                                  double optInAccelerationLong,
                                  double optInAccelerationMaxLong,
                                  double optInAccelerationInitShort,
                                  double optInAccelerationShort,
                                  double optInAccelerationMaxShort,
                                  int          *outBegIdx,
                                  int          *outNBElement,
                                  double        outReal[] )
{
   TA_RetCode retCode;
   int isLong;
   int todayIdx;
   int outIdx;
   int tempInt;
   double newHigh;
   double newLow;
   double prevHigh;
   double prevLow;
   double afLong;
   double afShort;
   double ep;
   double sar;
   double ep_temp[1];

   if( startIdx < 1 )
   {
      startIdx = 1;
   }
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   afLong = optInAccelerationInitLong;
   afShort = optInAccelerationInitShort;
   if( afLong > optInAccelerationMaxLong )
   {
      optInAccelerationInitLong = optInAccelerationMaxLong;
      afLong = optInAccelerationInitLong;
   }
   if( optInAccelerationLong > optInAccelerationMaxLong )
   {
      optInAccelerationLong = optInAccelerationMaxLong;
   }
   if( afShort > optInAccelerationMaxShort )
   {
      optInAccelerationInitShort = optInAccelerationMaxShort;
      afShort = optInAccelerationInitShort;
   }
   if( optInAccelerationShort > optInAccelerationMaxShort )
   {
      optInAccelerationShort = optInAccelerationMaxShort;
   }
   if( optInStartValue == 0 )
   {
      retCode = TA_S_MINUS_DM_Unguarded(startIdx,startIdx,inHigh,inLow,1,&tempInt,&tempInt,ep_temp);
      if( ep_temp[0] > 0 )
      {
         isLong = 0;
      } else 
      {
         isLong = 1;
      }
      if( retCode != TA_SUCCESS )
      {
         *outBegIdx= 0;
         *outNBElement= 0;
         return retCode;
      }
   } else if( optInStartValue > 0 )
   {
      isLong = 1;
   } else 
   {
      isLong = 0;
   }
   *outBegIdx= startIdx;
   outIdx = 0;
   todayIdx = startIdx;
   newHigh = inHigh[todayIdx - 1];
   newLow = inLow[todayIdx - 1];
   if( optInStartValue == 0 )
   {
      if( isLong == 1 )
      {
         ep = inHigh[todayIdx];
         sar = newLow;
      } else 
      {
         ep = inLow[todayIdx];
         sar = newHigh;
      }
   } else if( optInStartValue > 0 )
   {
      ep = inHigh[todayIdx];
      sar = optInStartValue;
   } else 
   {
      ep = inLow[todayIdx];
      sar = fabs(optInStartValue);
   }
   newLow = inLow[todayIdx];
   newHigh = inHigh[todayIdx];
   while( todayIdx <= endIdx )
   {
      prevLow = newLow;
      prevHigh = newHigh;
      newLow = inLow[todayIdx];
      newHigh = inHigh[todayIdx];
      todayIdx += 1;
      if( isLong == 1 )
      {
         if( newLow <= sar )
         {
            isLong = 0;
            sar = ep;
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
            if( optInOffsetOnReverse != 0.0 )
            {
               sar += sar * optInOffsetOnReverse;
            }
            outReal[outIdx++] = 0 - sar;
            afShort = optInAccelerationInitShort;
            ep = newLow;
            sar = sar + afShort * (ep - sar);
            if( sar < prevHigh )
            {
               sar = prevHigh;
            }
            if( sar < newHigh )
            {
               sar = newHigh;
            }
         } else 
         {
            outReal[outIdx++] = sar;
            if( newHigh > ep )
            {
               ep = newHigh;
               afLong += optInAccelerationLong;
               if( afLong > optInAccelerationMaxLong )
               {
                  afLong = optInAccelerationMaxLong;
               }
            }
            sar = sar + afLong * (ep - sar);
            if( sar > prevLow )
            {
               sar = prevLow;
            }
            if( sar > newLow )
            {
               sar = newLow;
            }
         }
      } else if( newHigh >= sar )
      {
         isLong = 1;
         sar = ep;
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
         if( optInOffsetOnReverse != 0.0 )
         {
            sar -= sar * optInOffsetOnReverse;
         }
         outReal[outIdx++] = sar;
         afLong = optInAccelerationInitLong;
         ep = newHigh;
         sar = sar + afLong * (ep - sar);
         if( sar > prevLow )
         {
            sar = prevLow;
         }
         if( sar > newLow )
         {
            sar = newLow;
         }
      } else 
      {
         outReal[outIdx++] = 0 - sar;
         if( newLow < ep )
         {
            ep = newLow;
            afShort += optInAccelerationShort;
            if( afShort > optInAccelerationMaxShort )
            {
               afShort = optInAccelerationMaxShort;
            }
         }
         sar = sar + afShort * (ep - sar);
         if( sar < prevHigh )
         {
            sar = prevHigh;
         }
         if( sar < newHigh )
         {
            sar = newHigh;
         }
      }
   }
   *outNBElement= outIdx;
   return TA_SUCCESS;
}

