123456789101112131415161718192021222324252627282930 |
- [/==============================================================================
- Copyright (C) 2001-2011 Joel de Guzman
- Copyright (C) 2001-2011 Hartmut Kaiser
- 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)
- ===============================================================================/]
- [section Number List - stuffing numbers into a std::vector]
- This sample demonstrates a parser for a comma separated list of numbers. The
- numbers are inserted in a vector using phoenix.
- [import ../../example/qi/num_list2.cpp]
- [tutorial_numlist2]
- The full cpp file for this example can be found here: [@../../example/qi/num_list2.cpp]
- This, again, is the same parser as before. This time, instead of summing up the
- numbers, we stuff them in a `std::vector`. `push_back` is supplied by
- __phoenix__. The expression:
- push_back(ref(v), _1)
- appends the parsed number. Like before, `_1` is a __phoenix__ placeholder for
- the parsed result attribute. Also, like before, `ref(v)` tells __phoenix__ that
- `v`, the `std::vector`, is a mutable reference.
- [endsect]
|