错误是：
In function ‘int returnShortestWeightedBranch(std::vector<route,std::allocator<route> >*)’: error: name lookup of ‘jj’ changed for ISO ‘for’ scoping note: (if you use ‘-fpermissive’ G++ will accept your code)
代码是：
for (int i = 0; i< routeVector.size(); i++)
{
if (routeVector[i].exitPoint == exitPointDetailsvector[preserveL].exitPoint)
{
cout << "\n-----------parent: " << routeVector[i].exitPoint;
branch obj;
obj.connectedExitPoint = exitPointDetailsvector[preserveI].exitPoint;
routeVector[i].selectedBranchesvector.push_back (obj);
for (int jj = 0; jj < routeVector[i].selectedBranchesvector.size(); jj++);
{
cout << "\n-----------branch: " << routeVector[i].selectedBranchesvector[jj].connectedExitPoint;
}
}
}
这里有什么问题？
编辑1：
我改变了以下几点：
for (int jj = 0; jj < routeVector[i].selectedBranchesvector.size(); jj++);
至：
int jj; for (jj = 0; jj < routeVector[i].selectedBranchesvector.size(); jj++);
现在正在工作！我不明白原因.
解决方法
在内部for语句的末尾有一个分号.这样就结束了jj的范围,所以它在块内是不可见的.
编辑
你已经解决了范围问题,但仍然有你的for循环执行
<nothing>;
括号后删除分号！