Remove additional spaces from a text in C++

#include <iostream>
#include <string>
using namespace std;
int main()
{
    string _text = "My  name    is        Ahmed    Saber" , mod_text = "";
    bool space = true;
    for(int i=0;i<_text.length();i++)
    {
        if(_text[i]==' ' && space)
        {
            space=false;
            mod_text+=' ';
        }
        else if(_text[i]==' ' && !space)
        { }
        else
        {
            mod_text+=_text[i];
            space=true;
        }
    }
    cout<<"Before : "<<_text<<endl;
    cout<<"After : "<<mod_text;
}