C++ 阵列超出范围MQL5循环

我试图通过一系列收盘价来获得每项资产的回报率。我写的代码是：

'

无效返回（MqlRates&rt[]，整数大小）

{

double-rtacao[]；
ArraySetAsSeries（rtacao，真实）；
ArrayResize（rtacao，（a_尺寸-1））；
对于（int i=1；i数组从0开始计数。这意味着数组的最后一个索引是（array_size-1）。根据这一点，您应该使用“i  double rtacao[];
  ArraySetAsSeries(rtacao, true);
  ArrayResize(rtacao,(a_size-1));

  for(int i=1;i<=a_size;i++)
  {
    rtacao[i]=MathLog(rt[i].close/rt[i-1].close); 
  }
 return;

 int nacoes=144; 
 string acao[];

 count_instr("ativos.txt",nacoes);
 ArrayResize(acao,nacoes);
 load_instr("ativos.txt",nacoes,acao,100);

 MqlRates rates[];
 ArraySetAsSeries(rates,true);
 ArrayResize (rates,100);


 for (int i=0;i<nacoes;i++)
  {

     SymbolSelect(acao[i],true);
     if(CopyRates(acao[i],APeriod,0,100,rates)!=100)
     {
        Print("CopyRates of ",acao[i]," failed, no history");
        //Erase(acao, i);
        //nacoes=nacoes-1;
     } else
     {
        Returns(rates, 100);
     }
  }     

for(int i=0;i<a_size;i++)
{
  rtacao[i]=MathLog(rt[i].close/rt[i-1].close); 
}

for(int i=0;i<a_size;i++)
{
  if(i==0)
     // something that happens when i is 0
  else
     rtacao[i]=MathLog(rt[i].close/rt[i-1].close); 
}

// something that happens when i is 0
for(int i=1;i<a_size;i++)
{
  rtacao[i]=MathLog(rt[i].close/rt[i-1].close); 
}