Re: Is this a legal C++ code?
On Feb 12, 10:01 am, "Jay Zhu" <Findek...@gmail.com> wrote:
I originally implemented following code in Visual StudioC++ 2005 with
SP1, it gets compiled and runs well. However when I try to compile it
in VC++ 2005 without SP, the compiler compains about an internal error
and stop the building process.
can anyone tell me if the following code is a valid C++ code per
current standard?
#include <cstdlib>
#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>
using namespace std;
void foo(vector<string>& strings)
{
struct Doer
{
Doer() : nCount('0'){}
void operator()(string& str)
{
str += nCount;
nCount++;
}
private:
char nCount;
};
for_each(strings.begin(), strings.end(), Doer());
}
Although some C++ compilers allow a template to be instantiated with a
local class, the C++ Standard does not. So a C++ compiler should
reject the call to for_each() because the third argument is an object
of a local class type (Doer).
Greg
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