/* TA-LIB Copyright (c) 1999-2025, Mario Fortier
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*
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*
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/* 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
 *  -------------------------------------------------------------------
 *  AC       Angelo Ciceri
 *
 *
 * Change history:
 *
 *  MMDDYY BY   Description
 *  -------------------------------------------------------------------
 *  103004 AC   Creation
 */

TA_LIB_API int TA_CDL3BLACKCROWS_Lookback( void )
{
   int ShadowVeryShort_rangeType = TA_Globals->candleSettings[TA_ShadowVeryShort].rangeType;
   int ShadowVeryShort_avgPeriod = TA_Globals->candleSettings[TA_ShadowVeryShort].avgPeriod;
   double ShadowVeryShort_factor = TA_Globals->candleSettings[TA_ShadowVeryShort].factor;
   return ShadowVeryShort_avgPeriod + 3;
}

TA_LIB_API TA_RetCode TA_CDL3BLACKCROWS( int    startIdx,
                                         int    endIdx,
                                         const double inOpen[],
                                         const double inHigh[],
                                         const double inLow[],
                                         const double inClose[],
                                         int          *outBegIdx,
                                         int          *outNBElement,
                                         int        outInteger[] )
{
   double ShadowVeryShortPeriodTotal[3];
   int i;
   int outIdx;
   int totIdx;
   int ShadowVeryShortTrailingIdx;
   int lookbackTotal;
   int ShadowVeryShort_rangeType = TA_Globals->candleSettings[TA_ShadowVeryShort].rangeType;
   int ShadowVeryShort_avgPeriod = TA_Globals->candleSettings[TA_ShadowVeryShort].avgPeriod;
   double ShadowVeryShort_factor = TA_Globals->candleSettings[TA_ShadowVeryShort].factor;

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

   if( !inOpen )
      return TA_BAD_PARAM;
   if( !inHigh )
      return TA_BAD_PARAM;
   if( !inLow )
      return TA_BAD_PARAM;
   if( !inClose )
      return TA_BAD_PARAM;
   if( !outInteger )
      return TA_BAD_PARAM;

   /* Identify the minimum number of price bar needed
    * to calculate at least one output.
    */
   lookbackTotal = TA_CDL3BLACKCROWS_Lookback();
   /* Move up the start index if there is not
    * enough initial data.
    */
   if( startIdx < lookbackTotal )
   {
      startIdx = lookbackTotal;
   }
   /* Make sure there is still something to evaluate. */
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   /* Do the calculation using tight loops. */
   /* Add-up the initial period, except for the last value. */
   ShadowVeryShortPeriodTotal[2] = 0;
   ShadowVeryShortPeriodTotal[1] = 0;
   ShadowVeryShortPeriodTotal[0] = 0;
   ShadowVeryShortTrailingIdx = startIdx - ShadowVeryShort_avgPeriod;
   i = ShadowVeryShortTrailingIdx;
   while( i < startIdx )
   {
      ShadowVeryShortPeriodTotal[2] = ShadowVeryShortPeriodTotal[2] + TA_CANDLERANGE(ShadowVeryShort,i - 2);
      ShadowVeryShortPeriodTotal[1] = ShadowVeryShortPeriodTotal[1] + TA_CANDLERANGE(ShadowVeryShort,i - 1);
      ShadowVeryShortPeriodTotal[0] = ShadowVeryShortPeriodTotal[0] + TA_CANDLERANGE(ShadowVeryShort,i);
      i += 1;
   }
   i = startIdx;
   /* Proceed with the calculation for the requested range.
    * Must have:
    * - three consecutive and declining black candlesticks
    * - each candle must have no or very short lower shadow
    * - each candle after the first must open within the prior candle's real body
    * - the first candle's close should be under the prior white candle's high
    * The meaning of "very short" is specified with TA_SetCandleSettings
    * outInteger is negative (-1 to -100): three black crows is always bearish;
    * the user should consider that 3 black crows is significant when it appears after a mature advance or at high levels,
    * while this function does not consider it
    */
   outIdx = 0;
   do
   {
      if( ((inClose[i - 3] >= inOpen[i - 3]) ? 1 : 0 - 1) == 1 &&     /* white */
          ((inClose[i - 2] >= inOpen[i - 2]) ? 1 : 0 - 1) == 0 - 1 && /* 1st black */
          ((inClose[i - 1] >= inOpen[i - 1]) ? 1 : 0 - 1) == 0 - 1 && /* 2nd black */
          ((inClose[i] >= inOpen[i]) ? 1 : 0 - 1) == 0 - 1 &&         /* 3rd black */
          inOpen[i - 1] < inOpen[i - 2] &&
          inOpen[i - 1] > inClose[i - 2] &&                           /* 2nd black opens within 1st black's rb */
          inOpen[i] < inOpen[i - 1] &&
          inOpen[i] > inClose[i - 1] &&                               /* 3rd black opens within 2nd black's rb */
          inHigh[i - 3] > inClose[i - 2] &&                           /* 1st black closes under prior candle's high */
          inClose[i - 2] > inClose[i - 1] &&                          /* three declining */
          inClose[i - 1] > inClose[i] &&                              /* three declining */
          (((inClose[i - 2] >= inOpen[i - 2]) ? inOpen[i - 2] : inClose[i - 2]) - inLow[i - 2]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[2],i - 2) && /* very short lower shadow */
          (((inClose[i - 1] >= inOpen[i - 1]) ? inOpen[i - 1] : inClose[i - 1]) - inLow[i - 1]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[1],i - 1) && /* very short lower shadow */
          (((inClose[i] >= inOpen[i]) ? inOpen[i] : inClose[i]) - inLow[i]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[0],i) ) /* very short lower shadow */
      {
         outInteger[outIdx++] = 0 - 100;
      } else 
      {
         outInteger[outIdx++] = 0;
      }
      /* add the current range and subtract the first range: this is done after the pattern recognition
       * when avgPeriod is not 0, that means "compare with the previous candles" (it excludes the current candle)
       */
      for( totIdx = 2; totIdx >= 0; totIdx -= 1 )
      {
         ShadowVeryShortPeriodTotal[totIdx] = ShadowVeryShortPeriodTotal[totIdx] + (TA_CANDLERANGE(ShadowVeryShort,i - totIdx) - TA_CANDLERANGE(ShadowVeryShort,ShadowVeryShortTrailingIdx - totIdx));
      }
      i += 1;
      ShadowVeryShortTrailingIdx += 1;
   } while( i <= endIdx );
   /* All done. Indicate the output limits and return. */
   *outNBElement= outIdx;
   *outBegIdx= startIdx;
   return TA_SUCCESS;
}

TA_LIB_API TA_RetCode TA_CDL3BLACKCROWS_Unguarded( int    startIdx,
                                                   int    endIdx,
                                                   const double inOpen[],
                                                   const double inHigh[],
                                                   const double inLow[],
                                                   const double inClose[],
                                                   int          *outBegIdx,
                                                   int          *outNBElement,
                                                   int        outInteger[] )
{
   double ShadowVeryShortPeriodTotal[3];
   int i;
   int outIdx;
   int totIdx;
   int ShadowVeryShortTrailingIdx;
   int lookbackTotal;
   int ShadowVeryShort_rangeType = TA_Globals->candleSettings[TA_ShadowVeryShort].rangeType;
   int ShadowVeryShort_avgPeriod = TA_Globals->candleSettings[TA_ShadowVeryShort].avgPeriod;
   double ShadowVeryShort_factor = TA_Globals->candleSettings[TA_ShadowVeryShort].factor;

   lookbackTotal = TA_CDL3BLACKCROWS_Lookback();
   if( startIdx < lookbackTotal )
   {
      startIdx = lookbackTotal;
   }
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   ShadowVeryShortPeriodTotal[2] = 0;
   ShadowVeryShortPeriodTotal[1] = 0;
   ShadowVeryShortPeriodTotal[0] = 0;
   ShadowVeryShortTrailingIdx = startIdx - ShadowVeryShort_avgPeriod;
   i = ShadowVeryShortTrailingIdx;
   while( i < startIdx )
   {
      ShadowVeryShortPeriodTotal[2] = ShadowVeryShortPeriodTotal[2] + TA_CANDLERANGE(ShadowVeryShort,i - 2);
      ShadowVeryShortPeriodTotal[1] = ShadowVeryShortPeriodTotal[1] + TA_CANDLERANGE(ShadowVeryShort,i - 1);
      ShadowVeryShortPeriodTotal[0] = ShadowVeryShortPeriodTotal[0] + TA_CANDLERANGE(ShadowVeryShort,i);
      i += 1;
   }
   i = startIdx;
   outIdx = 0;
   do
   {
      if( ((inClose[i - 3] >= inOpen[i - 3]) ? 1 : 0 - 1) == 1 && ((inClose[i - 2] >= inOpen[i - 2]) ? 1 : 0 - 1) == 0 - 1 && ((inClose[i - 1] >= inOpen[i - 1]) ? 1 : 0 - 1) == 0 - 1 && ((inClose[i] >= inOpen[i]) ? 1 : 0 - 1) == 0 - 1 && inOpen[i - 1] < inOpen[i - 2] && inOpen[i - 1] > inClose[i - 2] && inOpen[i] < inOpen[i - 1] && inOpen[i] > inClose[i - 1] && inHigh[i - 3] > inClose[i - 2] && inClose[i - 2] > inClose[i - 1] && inClose[i - 1] > inClose[i] && (((inClose[i - 2] >= inOpen[i - 2]) ? inOpen[i - 2] : inClose[i - 2]) - inLow[i - 2]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[2],i - 2) && (((inClose[i - 1] >= inOpen[i - 1]) ? inOpen[i - 1] : inClose[i - 1]) - inLow[i - 1]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[1],i - 1) && (((inClose[i] >= inOpen[i]) ? inOpen[i] : inClose[i]) - inLow[i]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[0],i) )
      {
         outInteger[outIdx++] = 0 - 100;
      } else 
      {
         outInteger[outIdx++] = 0;
      }
      for( totIdx = 2; totIdx >= 0; totIdx -= 1 )
      {
         ShadowVeryShortPeriodTotal[totIdx] = ShadowVeryShortPeriodTotal[totIdx] + (TA_CANDLERANGE(ShadowVeryShort,i - totIdx) - TA_CANDLERANGE(ShadowVeryShort,ShadowVeryShortTrailingIdx - totIdx));
      }
      i += 1;
      ShadowVeryShortTrailingIdx += 1;
   } while( i <= endIdx );
   *outNBElement= outIdx;
   *outBegIdx= startIdx;
   return TA_SUCCESS;
}

TA_RetCode TA_S_CDL3BLACKCROWS( int    startIdx,
                                int    endIdx,
                                const float inOpen[],
                                const float inHigh[],
                                const float inLow[],
                                const float inClose[],
                                int          *outBegIdx,
                                int          *outNBElement,
                                int        outInteger[] )
{
   double ShadowVeryShortPeriodTotal[3];
   int i;
   int outIdx;
   int totIdx;
   int ShadowVeryShortTrailingIdx;
   int lookbackTotal;
   int ShadowVeryShort_rangeType = TA_Globals->candleSettings[TA_ShadowVeryShort].rangeType;
   int ShadowVeryShort_avgPeriod = TA_Globals->candleSettings[TA_ShadowVeryShort].avgPeriod;
   double ShadowVeryShort_factor = TA_Globals->candleSettings[TA_ShadowVeryShort].factor;

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

   if( !inOpen )
      return TA_BAD_PARAM;
   if( !inHigh )
      return TA_BAD_PARAM;
   if( !inLow )
      return TA_BAD_PARAM;
   if( !inClose )
      return TA_BAD_PARAM;
   if( !outInteger )
      return TA_BAD_PARAM;

   lookbackTotal = TA_CDL3BLACKCROWS_Lookback();
   if( startIdx < lookbackTotal )
   {
      startIdx = lookbackTotal;
   }
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   ShadowVeryShortPeriodTotal[2] = 0;
   ShadowVeryShortPeriodTotal[1] = 0;
   ShadowVeryShortPeriodTotal[0] = 0;
   ShadowVeryShortTrailingIdx = startIdx - ShadowVeryShort_avgPeriod;
   i = ShadowVeryShortTrailingIdx;
   while( i < startIdx )
   {
      ShadowVeryShortPeriodTotal[2] = ShadowVeryShortPeriodTotal[2] + TA_CANDLERANGE(ShadowVeryShort,i - 2);
      ShadowVeryShortPeriodTotal[1] = ShadowVeryShortPeriodTotal[1] + TA_CANDLERANGE(ShadowVeryShort,i - 1);
      ShadowVeryShortPeriodTotal[0] = ShadowVeryShortPeriodTotal[0] + TA_CANDLERANGE(ShadowVeryShort,i);
      i += 1;
   }
   i = startIdx;
   outIdx = 0;
   do
   {
      if( ((inClose[i - 3] >= inOpen[i - 3]) ? 1 : 0 - 1) == 1 && ((inClose[i - 2] >= inOpen[i - 2]) ? 1 : 0 - 1) == 0 - 1 && ((inClose[i - 1] >= inOpen[i - 1]) ? 1 : 0 - 1) == 0 - 1 && ((inClose[i] >= inOpen[i]) ? 1 : 0 - 1) == 0 - 1 && inOpen[i - 1] < inOpen[i - 2] && inOpen[i - 1] > inClose[i - 2] && inOpen[i] < inOpen[i - 1] && inOpen[i] > inClose[i - 1] && inHigh[i - 3] > inClose[i - 2] && inClose[i - 2] > inClose[i - 1] && inClose[i - 1] > inClose[i] && (((inClose[i - 2] >= inOpen[i - 2]) ? inOpen[i - 2] : inClose[i - 2]) - inLow[i - 2]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[2],i - 2) && (((inClose[i - 1] >= inOpen[i - 1]) ? inOpen[i - 1] : inClose[i - 1]) - inLow[i - 1]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[1],i - 1) && (((inClose[i] >= inOpen[i]) ? inOpen[i] : inClose[i]) - inLow[i]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[0],i) )
      {
         outInteger[outIdx++] = 0 - 100;
      } else 
      {
         outInteger[outIdx++] = 0;
      }
      for( totIdx = 2; totIdx >= 0; totIdx -= 1 )
      {
         ShadowVeryShortPeriodTotal[totIdx] = ShadowVeryShortPeriodTotal[totIdx] + (TA_CANDLERANGE(ShadowVeryShort,i - totIdx) - TA_CANDLERANGE(ShadowVeryShort,ShadowVeryShortTrailingIdx - totIdx));
      }
      i += 1;
      ShadowVeryShortTrailingIdx += 1;
   } while( i <= endIdx );
   *outNBElement= outIdx;
   *outBegIdx= startIdx;
   return TA_SUCCESS;
}

TA_RetCode TA_S_CDL3BLACKCROWS_Unguarded( int    startIdx,
                                          int    endIdx,
                                          const float inOpen[],
                                          const float inHigh[],
                                          const float inLow[],
                                          const float inClose[],
                                          int          *outBegIdx,
                                          int          *outNBElement,
                                          int        outInteger[] )
{
   double ShadowVeryShortPeriodTotal[3];
   int i;
   int outIdx;
   int totIdx;
   int ShadowVeryShortTrailingIdx;
   int lookbackTotal;
   int ShadowVeryShort_rangeType = TA_Globals->candleSettings[TA_ShadowVeryShort].rangeType;
   int ShadowVeryShort_avgPeriod = TA_Globals->candleSettings[TA_ShadowVeryShort].avgPeriod;
   double ShadowVeryShort_factor = TA_Globals->candleSettings[TA_ShadowVeryShort].factor;

   lookbackTotal = TA_CDL3BLACKCROWS_Lookback();
   if( startIdx < lookbackTotal )
   {
      startIdx = lookbackTotal;
   }
   if( startIdx > endIdx )
   {
      *outBegIdx= 0;
      *outNBElement= 0;
      return TA_SUCCESS;
   }
   ShadowVeryShortPeriodTotal[2] = 0;
   ShadowVeryShortPeriodTotal[1] = 0;
   ShadowVeryShortPeriodTotal[0] = 0;
   ShadowVeryShortTrailingIdx = startIdx - ShadowVeryShort_avgPeriod;
   i = ShadowVeryShortTrailingIdx;
   while( i < startIdx )
   {
      ShadowVeryShortPeriodTotal[2] = ShadowVeryShortPeriodTotal[2] + TA_CANDLERANGE(ShadowVeryShort,i - 2);
      ShadowVeryShortPeriodTotal[1] = ShadowVeryShortPeriodTotal[1] + TA_CANDLERANGE(ShadowVeryShort,i - 1);
      ShadowVeryShortPeriodTotal[0] = ShadowVeryShortPeriodTotal[0] + TA_CANDLERANGE(ShadowVeryShort,i);
      i += 1;
   }
   i = startIdx;
   outIdx = 0;
   do
   {
      if( ((inClose[i - 3] >= inOpen[i - 3]) ? 1 : 0 - 1) == 1 && ((inClose[i - 2] >= inOpen[i - 2]) ? 1 : 0 - 1) == 0 - 1 && ((inClose[i - 1] >= inOpen[i - 1]) ? 1 : 0 - 1) == 0 - 1 && ((inClose[i] >= inOpen[i]) ? 1 : 0 - 1) == 0 - 1 && inOpen[i - 1] < inOpen[i - 2] && inOpen[i - 1] > inClose[i - 2] && inOpen[i] < inOpen[i - 1] && inOpen[i] > inClose[i - 1] && inHigh[i - 3] > inClose[i - 2] && inClose[i - 2] > inClose[i - 1] && inClose[i - 1] > inClose[i] && (((inClose[i - 2] >= inOpen[i - 2]) ? inOpen[i - 2] : inClose[i - 2]) - inLow[i - 2]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[2],i - 2) && (((inClose[i - 1] >= inOpen[i - 1]) ? inOpen[i - 1] : inClose[i - 1]) - inLow[i - 1]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[1],i - 1) && (((inClose[i] >= inOpen[i]) ? inOpen[i] : inClose[i]) - inLow[i]) < TA_CANDLEAVERAGE(ShadowVeryShort,ShadowVeryShortPeriodTotal[0],i) )
      {
         outInteger[outIdx++] = 0 - 100;
      } else 
      {
         outInteger[outIdx++] = 0;
      }
      for( totIdx = 2; totIdx >= 0; totIdx -= 1 )
      {
         ShadowVeryShortPeriodTotal[totIdx] = ShadowVeryShortPeriodTotal[totIdx] + (TA_CANDLERANGE(ShadowVeryShort,i - totIdx) - TA_CANDLERANGE(ShadowVeryShort,ShadowVeryShortTrailingIdx - totIdx));
      }
      i += 1;
      ShadowVeryShortTrailingIdx += 1;
   } while( i <= endIdx );
   *outNBElement= outIdx;
   *outBegIdx= startIdx;
   return TA_SUCCESS;
}

