ta_cdlmatchinglow.c

股票主要技术指标源码

/* Generated */    if( !outInteger )
/* Generated */       return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */ 
/* Generated */    #endif /* !defined(_JAVA) */
/* Generated */ #endif /* TA_FUNC_NO_RANGE_CHECK */
/* Generated */ 
/**** END GENCODE SECTION 4 - DO NOT DELETE THIS LINE ****/

   /* Identify the minimum number of price bar needed
    * to calculate at least one output.
    */

   lookbackTotal = LOOKBACK_CALL(CDLMATCHINGLOW)();

   /* 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 )
   {
      VALUE_HANDLE_DEREF_TO_ZERO(outBegIdx);
      VALUE_HANDLE_DEREF_TO_ZERO(outNBElement);
      return ENUM_VALUE(RetCode,TA_SUCCESS,Success);
   }

   /* Do the calculation using tight loops. */
   /* Add-up the initial period, except for the last value. */
   EqualPeriodTotal = 0;
   EqualTrailingIdx = startIdx - TA_CANDLEAVGPERIOD(Equal);

   i = EqualTrailingIdx;
   while( i < startIdx ) {
        EqualPeriodTotal += TA_CANDLERANGE( Equal, i-1 );
        i++;
   }
   i = startIdx;

   /* Proceed with the calculation for the requested range.
    * Must have:
    * - first candle: black candle
    * - second candle: black candle with the close equal to the previous close
    * The meaning of "equal" is specified with TA_SetCandleSettings
    * outInteger is always positive (1 to 100): matching low is always bullish;
    */
   outIdx = 0;
   do
   {
        if( TA_CANDLECOLOR(i-1) == -1 &&                                                        // first black
            TA_CANDLECOLOR(i) == -1 &&                                                          // second black
            inClose[i] <= inClose[i-1] + TA_CANDLEAVERAGE( Equal, EqualPeriodTotal, i-1 ) && // 1st and 2nd same close
            inClose[i] >= inClose[i-1] - TA_CANDLEAVERAGE( Equal, EqualPeriodTotal, i-1 )
          )
            outInteger[outIdx++] = 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)
         */
        EqualPeriodTotal += TA_CANDLERANGE( Equal, i-1 ) - TA_CANDLERANGE( Equal, EqualTrailingIdx-1 );
        i++;
        EqualTrailingIdx++;
   } while( i <= endIdx );

   /* All done. Indicate the output limits and return. */
   VALUE_HANDLE_DEREF(outNBElement) = outIdx;
   VALUE_HANDLE_DEREF(outBegIdx)    = startIdx;

   return ENUM_VALUE(RetCode,TA_SUCCESS,Success);
}

/**** START GENCODE SECTION 5 - DO NOT DELETE THIS LINE ****/
/* Generated */ 
/* Generated */ #define  USE_SINGLE_PRECISION_INPUT
/* Generated */ #if !defined( _MANAGED ) && !defined( _JAVA )
/* Generated */    #undef   TA_PREFIX
/* Generated */    #define  TA_PREFIX(x) TA_S_##x
/* Generated */ #endif
/* Generated */ #undef   INPUT_TYPE
/* Generated */ #define  INPUT_TYPE float
/* Generated */ #if defined( _MANAGED )
/* Generated */ enum class Core::RetCode Core::CdlMatchingLow( int    startIdx,
/* Generated */                                                int    endIdx,
/* Generated */                                                cli::array<float>^ inOpen,
/* Generated */                                                cli::array<float>^ inHigh,
/* Generated */                                                cli::array<float>^ inLow,
/* Generated */                                                cli::array<float>^ inClose,
/* Generated */                                                [Out]int%    outBegIdx,
/* Generated */                                                [Out]int%    outNBElement,
/* Generated */                                                cli::array<int>^  outInteger )
/* Generated */ #elif defined( _JAVA )
/* Generated */ public RetCode cdlMatchingLow( int    startIdx,
/* Generated */                                int    endIdx,
/* Generated */                                float        inOpen[],
/* Generated */                                float        inHigh[],
/* Generated */                                float        inLow[],
/* Generated */                                float        inClose[],
/* Generated */                                MInteger     outBegIdx,
/* Generated */                                MInteger     outNBElement,
/* Generated */                                int           outInteger[] )
/* Generated */ #else
/* Generated */ TA_RetCode TA_S_CDLMATCHINGLOW( int    startIdx,
/* Generated */                                 int    endIdx,
/* Generated */                                 const float  inOpen[],
/* Generated */                                 const float  inHigh[],
/* Generated */                                 const float  inLow[],
/* Generated */                                 const float  inClose[],
/* Generated */                                 int          *outBegIdx,
/* Generated */                                 int          *outNBElement,
/* Generated */                                 int           outInteger[] )
/* Generated */ #endif
/* Generated */ {
/* Generated */     double EqualPeriodTotal;
/* Generated */     int i, outIdx, EqualTrailingIdx, lookbackTotal;
/* Generated */  #ifndef TA_FUNC_NO_RANGE_CHECK
/* Generated */     if( startIdx < 0 )
/* Generated */        return ENUM_VALUE(RetCode,TA_OUT_OF_RANGE_START_INDEX,OutOfRangeStartIndex);
/* Generated */     if( (endIdx < 0) || (endIdx < startIdx))
/* Generated */        return ENUM_VALUE(RetCode,TA_OUT_OF_RANGE_END_INDEX,OutOfRangeEndIndex);
/* Generated */     #if !defined(_JAVA)
/* Generated */     if(!inOpen||!inHigh||!inLow||!inClose)
/* Generated */        return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #endif 
/* Generated */     #if !defined(_JAVA)
/* Generated */     if( !outInteger )
/* Generated */        return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #endif 
/* Generated */  #endif 
/* Generated */    lookbackTotal = LOOKBACK_CALL(CDLMATCHINGLOW)();
/* Generated */    if( startIdx < lookbackTotal )
/* Generated */       startIdx = lookbackTotal;
/* Generated */    if( startIdx > endIdx )
/* Generated */    {
/* Generated */       VALUE_HANDLE_DEREF_TO_ZERO(outBegIdx);
/* Generated */       VALUE_HANDLE_DEREF_TO_ZERO(outNBElement);
/* Generated */       return ENUM_VALUE(RetCode,TA_SUCCESS,Success);
/* Generated */    }
/* Generated */    EqualPeriodTotal = 0;
/* Generated */    EqualTrailingIdx = startIdx - TA_CANDLEAVGPERIOD(Equal);
/* Generated */    i = EqualTrailingIdx;
/* Generated */    while( i < startIdx ) {
/* Generated */         EqualPeriodTotal += TA_CANDLERANGE( Equal, i-1 );
/* Generated */         i++;
/* Generated */    }
/* Generated */    i = startIdx;
/* Generated */    outIdx = 0;
/* Generated */    do
/* Generated */    {
/* Generated */         if( TA_CANDLECOLOR(i-1) == -1 &&                                                        // first black
/* Generated */             TA_CANDLECOLOR(i) == -1 &&                                                          // second black
/* Generated */             inClose[i] <= inClose[i-1] + TA_CANDLEAVERAGE( Equal, EqualPeriodTotal, i-1 ) && // 1st and 2nd same close
/* Generated */             inClose[i] >= inClose[i-1] - TA_CANDLEAVERAGE( Equal, EqualPeriodTotal, i-1 )
/* Generated */           )
/* Generated */             outInteger[outIdx++] = 100;
/* Generated */         else
/* Generated */             outInteger[outIdx++] = 0;
/* Generated */         EqualPeriodTotal += TA_CANDLERANGE( Equal, i-1 ) - TA_CANDLERANGE( Equal, EqualTrailingIdx-1 );
/* Generated */         i++;
/* Generated */         EqualTrailingIdx++;
/* Generated */    } while( i <= endIdx );
/* Generated */    VALUE_HANDLE_DEREF(outNBElement) = outIdx;
/* Generated */    VALUE_HANDLE_DEREF(outBegIdx)    = startIdx;
/* Generated */    return ENUM_VALUE(RetCode,TA_SUCCESS,Success);
/* Generated */ }
/* Generated */ 
/* Generated */ #if defined( _MANAGED )
/* Generated */ }}} // Close namespace TicTacTec.TA.Lib
/* Generated */ #endif
/**** END GENCODE SECTION 5 - DO NOT DELETE THIS LINE ****/