Compile error on VS2013 when range-based for loop and do while loop are used simultaneously

Question

#include <vector>

int main()
{
    std::vector<int> v;
    for (int x : v) do {} while (0);
}

Compiling the code above on VS2013 will yield error C2059: syntax error : '}' . However, GCC can successfully compile the code.

To reproduce the error, the following requirements should be fulfilled:

1. Use range-based for loop;
2. Do not surround for-loop body by "{}";
3. Write a single "do while" statement in the for-loop body.

Any insight on this?

Answer 1

这是一个错误，已在VS2015中修复。

Answer 2

You can use parentheses to avoid MSVC 2013 error. The following code is compiling fine in MSVC 2013 Update 4:

std::vector<int> v;
for (int x : v)
{
    do
    {
    } while (0);
}