C++标准库中的string，将指定字符删除

#include <string>
#include <iostream>
#include <algorithm>
#include <functional>
using namespace std;
void removeAll(string &str,char c)
{
    string::iterator new_end = remove_if(str.begin(), str.end(), bind2nd(equal_to<char>(),c));
    str.erase(new_end, str.end());
}
int main()
{
    string tmp="asdfasf.asfdasdfsa.afssdfsda.asfdsdafa.asdfsadfsa.asdfasf.asfdasdfsa.afssdfsda.asfdsdafa.asdfsadfsa.";
    removeAll(tmp,'.');
    cout<<tmp.c_str()<<endl;
    return 0;
}