1[/============================================================================== 2 Copyright (C) 2001-2010 Joel de Guzman 3 Copyright (C) 2001-2005 Dan Marsden 4 Copyright (C) 2001-2010 Thomas Heller 5 6 Distributed under the Boost Software License, Version 1.0. (See accompanying 7 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 8===============================================================================/] 9 10[section Lazy Statements] 11 12Lazy statements? Sure. There are lazy versions of the C++ statements we all know 13and love. For example: 14 15 if_(arg1 > 5) 16 [ 17 std::cout << arg1 18 ] 19 20Say, for example, we wish to print all the elements that are greater than 5 21(separated by a comma) in a vector. Here's how we write it: 22 23 std::for_each(v.begin(), v.end(), 24 if_(arg1 > 5) 25 [ 26 std::cout << arg1 << ", " 27 ] 28 ); 29 30(See [@../../example/if.cpp if.cpp]) 31 32[blurb __tip__ Learn more about statements [link phoenix.modules.statement here.]] 33 34[endsect] 35