错误消息:“jj"的名称查找已更改为 ISO“for"范围，(如果您使用“-fpermissive"，G++ 将接受您的代码)

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 << "
-----------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 << "
-----------branch: " << routeVector[i].selectedBranchesVector[jj].connectedExitPoint;
                }
            }
        }

这里有什么问题?

编辑 1:

我更改了以下内容:

for (int jj = 0; jj < routeVector[i].selectedBranchesVector.size(); jj++);

到:

int jj;
for (jj = 0; jj < routeVector[i].selectedBranchesVector.size(); jj++);

现在它开始工作了！！我不明白原因.

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