bug记事：STL map 引发的血案

1:  int pairwiseOneSeqIndex  = pc->pairwiseOne[i];

2:  int pairwiseTwoSeqIndex  = pc->pairwiseTwo[i];

3:   

4:  int pairwiseOneBetaIndex  =  MapSeqIndexToBetaIndex[pairwiseOneSeqIndex];

5:  int pairwiseTwoBetaIndex  =  MapSeqIndexToBetaIndex[pairwiseTwoSeqIndex];

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
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.csharpcode .lnum { color: #606060; }

 

这个问题是这样的， 莫名发现map里面多了某个元素，而这个问题就在于，map不一定得像下面那样才算增加一个元素（也可能是覆盖最初的值）：

1:  MapSeqIndexToBetaIndex[i] = BetaResideIndex;

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }

像最上面的那样在赋值符号右边也可能莫名增加一些元素，只是莫名增加的元素key存在，而value却为默认值0（对int,char等）。所以在使用的时候一定要谨记不要对自己不存在的key取值。