ta_midprice.c

股票主要技术指标源码

/* Generated */    /* Verify required price component. */
/* Generated */    if(!inHigh||!inLow)
/* 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. */

   /* MIDPRICE = (Highest High + Lowest Low)/2
    *
    * This function is equivalent to MEDPRICE when the
    * period is 1.
    */

   /* 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;
   
   while( today <= endIdx )
   {
      lowest  = inLow[trailingIdx];
      highest = inHigh[trailingIdx];
      trailingIdx++;
      for( i=trailingIdx; i <= today; i++ )
      {
         tmp = inLow[i];
         if( tmp < lowest ) lowest= tmp;
         tmp = inHigh[i];
         if( tmp > highest) highest = tmp;
      }

      outReal[outIdx++] = (highest+lowest)/2.0;
      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::MidPrice( int    startIdx,
/* Generated */                                          int    endIdx,
/* Generated */                                          cli::array<float>^ inHigh,
/* Generated */                                          cli::array<float>^ inLow,
/* 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 midPrice( int    startIdx,
/* Generated */                          int    endIdx,
/* Generated */                          float        inHigh[],
/* Generated */                          float        inLow[],
/* Generated */                          int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                          MInteger     outBegIdx,
/* Generated */                          MInteger     outNBElement,
/* Generated */                          double        outReal[] )
/* Generated */ #else
/* Generated */ TA_RetCode TA_S_MIDPRICE( int    startIdx,
/* Generated */                           int    endIdx,
/* Generated */                           const float  inHigh[],
/* Generated */                           const float  inLow[],
/* Generated */                           int           optInTimePeriod, /* From 2 to 100000 */
/* Generated */                           int          *outBegIdx,
/* Generated */                           int          *outNBElement,
/* Generated */                           double        outReal[] )
/* Generated */ #endif
/* Generated */ {
/* Generated */    double lowest, highest, tmp;
/* Generated */    int outIdx, nbInitialElementNeeded;
/* Generated */    int trailingIdx, today, i;
/* 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)
/* 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 */    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 */    while( today <= endIdx )
/* Generated */    {
/* Generated */       lowest  = inLow[trailingIdx];
/* Generated */       highest = inHigh[trailingIdx];
/* Generated */       trailingIdx++;
/* Generated */       for( i=trailingIdx; i <= today; i++ )
/* Generated */       {
/* Generated */          tmp = inLow[i];
/* Generated */          if( tmp < lowest ) lowest= tmp;
/* Generated */          tmp = inHigh[i];
/* Generated */          if( tmp > highest) highest = tmp;
/* Generated */       }
/* Generated */       outReal[outIdx++] = (highest+lowest)/2.0;
/* 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 ****/