STL问题

[验证码识别]

   TPoint *pPt = ptSet.begin(); 

编译出错
No user-defined-conversion operator available that can perform this conversion,

要怎么做才能使上面便宜没有错误，还是不能这样用？

-------------------------------------------
//下面没有错误
TPoint tPt = *ptSet.begin();
set<TPoint>::iterator sPtIter = ptSet.begin();
--------------------------------------------

[太乙]

ptSet如何定义？

[WingForce]

TPoint *pPt = &(*ptSet.begin());
或者
TPoint *pPt = &ptSet[0]
或者
TPoint *pPt = &ptSet.front()

[mstlq]

标准没有规定iterator一定要用指针去实现……
不能转换也是正常的……

[macrojj]

TPoint tPt = *ptSet.begin();

很明显 你的ptSet是一个装TPoint指针的Set

[fallening]

[Quote=引用楼主 yzm888 的回复:]
C/C++ code
TPoint*pPt= ptSet.begin();

编译出错
  No user-defined-conversion operator available that can perform this conversion,

要怎么做才能使上面便宜没有错误，还是不能这样用？

-------------------------------------------
//下面没有错误
  TPoint tPt = *ptSet.begin();
  set <TPoint>::iterator sPtIter = ptSet.begin();
--------------------------------------------
[/Quote]

TPoint *tPt = &*ptSet.begin();
TPoint *tPt = &ptSet.front();