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// password.cpp
//
// Copyright (c) 2010
// Steven Watanabe
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//[password
/*`
For the source of this example see
[@boost://libs/random/example/password.cpp password.cpp].
This example demonstrates generating a random 8 character
password.
*/
#include <boost/random/random_device.hpp>
#include <boost/random/uniform_int_distribution.hpp>
#include <iostream>
int main() {
/*<< We first define the characters that we're going
to allow. This is pretty much just the characters
on a standard keyboard.
>>*/
std::string chars(
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"1234567890"
"!@#$%^&*()"
"`~-_=+[{]}\\|;:'\",<.>/? ");
/*<< We use __random_device as a source of entropy, since we want
passwords that are not predictable.
>>*/
boost::random::random_device rng;
/*<< Finally we select 8 random characters from the
string and print them to cout.
>>*/
boost::random::uniform_int_distribution<> index_dist(0, chars.size() - 1);
for(int i = 0; i < 8; ++i) {
std::cout << chars[index_dist(rng)];
}
std::cout << std::endl;
}
//]
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