std::count leaked outside namespace std?

[Paolo Carlini]

On 04/23/2013 11:26 PM, bd satish wrote:
> Hi,
>
> Here's a simple program:
>
> #include <algorithm>
> #include <vector>
>
> int main()
> {
>    std::vector<int>  vec;
>    count(vec.begin(), vec.end(), 0);   // shouldn't this be std::count ?
> }
>
> The above compiles successfully, but I think it shouldn't. I expect a
> message like "error: `count` not declared in scope" because I meant to
> say std::count. Isn't this a bug, or am I missing something?
You are: https://en.wikipedia.org/wiki/Argument-dependent_name_lookup

Paolo.