blob: 487610e344c01bf68013a4b7889763d0d70f3b79 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
.. Copyright David Abrahams 2006. 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)
Build a Simple Program Using Boost
==================================
To keep things simple, let's start by using a header-only library.
The following program reads a sequence of integers from standard
input, uses Boost.Lambda to multiply each number by three, and
writes them to standard output::
#include <boost/lambda/lambda.hpp>
#include <iostream>
#include <iterator>
#include <algorithm>
int main()
{
using namespace boost::lambda;
typedef std::istream_iterator<int> in;
std::for_each(
in(std::cin), in(), std::cout << (_1 * 3) << " " );
}
Copy the text of this program into a file called ``example.cpp``.
|
