ta_maxindex.c

股票主要技术指标源码

/* 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. */

   /* Identify the minimum number of price bar needed
    * to identify at least one output over the specified
    * period.
    */
   nbInitialElementNeeded = (optInTimePeriod-1);

   /* Move up the start index if there is not
    * enough initial data.
    */
   if( startIdx < nbInitialElementNeeded )
      startIdx = nbInitialElementNeeded;

   /* 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);
   }

   /* Proceed with the calculation for the requested range.
    * Note that this algorithm allows the input and
    * output to be the same buffer.
    */
   outIdx = 0;
   today       = startIdx;
   trailingIdx = startIdx-nbInitialElementNeeded;
   highestIdx  = -1;
   highest     = 0.0;

   while( today <= endIdx )
   {
      tmp = inReal[today];

      if( highestIdx < trailingIdx )
      {
        highestIdx = trailingIdx;
        highest = inReal[highestIdx];
        i = highestIdx;
        while( ++i<=today )
        {
           tmp = inReal[i];
           if( tmp > highest )
           {
              highestIdx = i;
              highest = tmp;
           }
        }
      }
      else if( tmp >= highest )
      {
        highestIdx = today;
        highest = tmp;
      }

      outInteger[outIdx++] = highestIdx;
      trailingIdx++;
      today++;  
   }

   /* Keep the outBegIdx relative to the
    * caller input before returning.
    */
   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::MaxIndex( int    startIdx,
/* Generated */                                          int    endIdx,
/* Generated */                                          cli::array<float>^ inReal,
/* Generated */                                          int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                                          [Out]int%    outBegIdx,
/* Generated */                                          [Out]int%    outNBElement,
/* Generated */                                          cli::array<int>^  outInteger )
/* Generated */ #elif defined( _JAVA )
/* Generated */ public RetCode maxIndex( int    startIdx,
/* Generated */                          int    endIdx,
/* Generated */                          float        inReal[],
/* Generated */                          int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                          MInteger     outBegIdx,
/* Generated */                          MInteger     outNBElement,
/* Generated */                          int           outInteger[] )
/* Generated */ #else
/* Generated */ TA_RetCode TA_S_MAXINDEX( int    startIdx,
/* Generated */                           int    endIdx,
/* Generated */                           const float  inReal[],
/* Generated */                           int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                           int          *outBegIdx,
/* Generated */                           int          *outNBElement,
/* Generated */                           int           outInteger[] )
/* Generated */ #endif
/* Generated */ {
/* Generated */    double highest, tmp;
/* Generated */    int outIdx, nbInitialElementNeeded;
/* Generated */    int trailingIdx, today, i, highestIdx;
/* 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( !inReal ) return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #endif 
/* Generated */     if( (int)optInTimePeriod == TA_INTEGER_DEFAULT )
/* Generated */        optInTimePeriod = 30;
/* Generated */     else if( ((int)optInTimePeriod < 2) || ((int)optInTimePeriod > 100000) )
/* Generated */        return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #if !defined(_JAVA)
/* Generated */     if( !outInteger )
/* Generated */        return ENUM_VALUE(RetCode,TA_BAD_PARAM,BadParam);
/* Generated */     #endif 
/* Generated */  #endif 
/* Generated */    nbInitialElementNeeded = (optInTimePeriod-1);
/* Generated */    if( startIdx < nbInitialElementNeeded )
/* Generated */       startIdx = nbInitialElementNeeded;
/* 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 */    outIdx = 0;
/* Generated */    today       = startIdx;
/* Generated */    trailingIdx = startIdx-nbInitialElementNeeded;
/* Generated */    highestIdx  = -1;
/* Generated */    highest     = 0.0;
/* Generated */    while( today <= endIdx )
/* Generated */    {
/* Generated */       tmp = inReal[today];
/* Generated */       if( highestIdx < trailingIdx )
/* Generated */       {
/* Generated */         highestIdx = trailingIdx;
/* Generated */         highest = inReal[highestIdx];
/* Generated */         i = highestIdx;
/* Generated */         while( ++i<=today )
/* Generated */         {
/* Generated */            tmp = inReal[i];
/* Generated */            if( tmp > highest )
/* Generated */            {
/* Generated */               highestIdx = i;
/* Generated */               highest = tmp;
/* Generated */            }
/* Generated */         }
/* Generated */       }
/* Generated */       else if( tmp >= highest )
/* Generated */       {
/* Generated */         highestIdx = today;
/* Generated */         highest = tmp;
/* Generated */       }
/* Generated */       outInteger[outIdx++] = highestIdx;
/* Generated */       trailingIdx++;
/* Generated */       today++;  
/* Generated */    }
/* 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 ****/