ta_adxr.c

股票主要技术指标源码

/* Generated */       return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */ 
/* Generated */    #endif /* !defined(_JAVA)*/
/* Generated */    /* min/max are checked for optInTimePeriod. */
/* Generated */    if( (int)optInTimePeriod == TA_INTEGER_DEFAULT )
/* Generated */       optInTimePeriod = 14;
/* Generated */    else if( ((int)optInTimePeriod < 2) || ((int)optInTimePeriod > 100000) )
/* Generated */       return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */ 
/* Generated */    #if !defined(_JAVA)
/* Generated */    if( !outReal )
/* 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 ****/

   /* Insert TA function code here. */

   /* Original implementation from Wilder's book was doing some integer
    * rounding in its calculations.
    *
    * This was understandable in the context that at the time the book
    * was written, most user were doing the calculation by hand.
    * 
    * For a computer, rounding is unnecessary (and even problematic when inputs
    * are close to 1).
    *
    * TA-Lib does not do the rounding. Still, if you want to reproduce Wilder's examples,
    * you can comment out the following #undef/#define and rebuild the library.
    */
   #undef  round_pos
   #define round_pos(x) (x)

   /* Move up the start index if there is not
    * enough initial data.
    * Always one price bar gets consumed.
    */
   adxrLookback = LOOKBACK_CALL(ADXR)( optInTimePeriod );

   if( startIdx < adxrLookback )
      startIdx = adxrLookback;

   /* 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);
   }

   ARRAY_ALLOC( adx, endIdx-startIdx+optInTimePeriod );
   #if !defined( _JAVA )
      if( !adx )
         return ENUM_VALUE(RetCode,TA_ALLOC_ERR,AllocErr);
   #endif

   retCode = FUNCTION_CALL(ADX)( startIdx-(optInTimePeriod-1), endIdx,
                                 inHigh, inLow, inClose,
                                 optInTimePeriod, outBegIdx, outNBElement, adx );

   if( retCode != ENUM_VALUE(RetCode,TA_SUCCESS,Success) )      
   {
      ARRAY_FREE( adx );
      return retCode;
   }

   i = optInTimePeriod-1;
   j = 0;
   outIdx = 0;
   nbElement = endIdx-startIdx+2;
   while( --nbElement != 0 )
      outReal[outIdx++] = round_pos( (adx[i++]+adx[j++])/2.0 );

   ARRAY_FREE( adx );

   VALUE_HANDLE_DEREF(outBegIdx)    = startIdx;
   VALUE_HANDLE_DEREF(outNBElement) = outIdx;

   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::Adxr( int    startIdx,
/* Generated */                                      int    endIdx,
/* Generated */                                      cli::array<float>^ inHigh,
/* Generated */                                      cli::array<float>^ inLow,
/* Generated */                                      cli::array<float>^ inClose,
/* Generated */                                      int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                                      [Out]int%    outBegIdx,
/* Generated */                                      [Out]int%    outNBElement,
/* Generated */                                      cli::array<double>^  outReal )
/* Generated */ #elif defined( _JAVA )
/* Generated */ public RetCode adxr( int    startIdx,
/* Generated */                      int    endIdx,
/* Generated */                      float        inHigh[],
/* Generated */                      float        inLow[],
/* Generated */                      float        inClose[],
/* Generated */                      int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                      MInteger     outBegIdx,
/* Generated */                      MInteger     outNBElement,
/* Generated */                      double        outReal[] )
/* Generated */ #else
/* Generated */ TA_RetCode TA_S_ADXR( int    startIdx,
/* Generated */                       int    endIdx,
/* Generated */                       const float  inHigh[],
/* Generated */                       const float  inLow[],
/* Generated */                       const float  inClose[],
/* Generated */                       int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                       int          *outBegIdx,
/* Generated */                       int          *outNBElement,
/* Generated */                       double        outReal[] )
/* Generated */ #endif
/* Generated */ {
/* Generated */    ARRAY_REF( adx );
/* Generated */    int adxrLookback, i, j, outIdx, nbElement;
/* Generated */    ENUM_DECLARATION(RetCode) retCode;
/* 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(!inHigh||!inLow||!inClose)
/* Generated */        return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #endif 
/* Generated */     if( (int)optInTimePeriod == TA_INTEGER_DEFAULT )
/* Generated */        optInTimePeriod = 14;
/* Generated */     else if( ((int)optInTimePeriod < 2) || ((int)optInTimePeriod > 100000) )
/* Generated */        return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #if !defined(_JAVA)
/* Generated */     if( !outReal )
/* Generated */        return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #endif 
/* Generated */  #endif 
/* Generated */    #undef  round_pos
/* Generated */    #define round_pos(x) (x)
/* Generated */    adxrLookback = LOOKBACK_CALL(ADXR)( optInTimePeriod );
/* Generated */    if( startIdx < adxrLookback )
/* Generated */       startIdx = adxrLookback;
/* 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 */    ARRAY_ALLOC( adx, endIdx-startIdx+optInTimePeriod );
/* Generated */    #if !defined( _JAVA )
/* Generated */       if( !adx )
/* Generated */          return ENUM_VALUE(RetCode,TA_ALLOC_ERR,AllocErr);
/* Generated */    #endif
/* Generated */    retCode = FUNCTION_CALL(ADX)( startIdx-(optInTimePeriod-1), endIdx,
/* Generated */                                  inHigh, inLow, inClose,
/* Generated */                                  optInTimePeriod, outBegIdx, outNBElement, adx );
/* Generated */    if( retCode != ENUM_VALUE(RetCode,TA_SUCCESS,Success) )      
/* Generated */    {
/* Generated */       ARRAY_FREE( adx );
/* Generated */       return retCode;
/* Generated */    }
/* Generated */    i = optInTimePeriod-1;
/* Generated */    j = 0;
/* Generated */    outIdx = 0;
/* Generated */    nbElement = endIdx-startIdx+2;
/* Generated */    while( --nbElement != 0 )
/* Generated */       outReal[outIdx++] = round_pos( (adx[i++]+adx[j++])/2.0 );
/* Generated */    ARRAY_FREE( adx );
/* Generated */    VALUE_HANDLE_DEREF(outBegIdx)    = startIdx;
/* Generated */    VALUE_HANDLE_DEREF(outNBElement) = outIdx;
/* 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 ****/