diff options
Diffstat (limited to 'src/boost/libs/bind/bind_as_compose.cpp')
-rw-r--r-- | src/boost/libs/bind/bind_as_compose.cpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/src/boost/libs/bind/bind_as_compose.cpp b/src/boost/libs/bind/bind_as_compose.cpp new file mode 100644 index 000000000..8f07a6324 --- /dev/null +++ b/src/boost/libs/bind/bind_as_compose.cpp @@ -0,0 +1,78 @@ +#include <boost/config.hpp> + +#if defined(BOOST_MSVC) +#pragma warning(disable: 4786) // identifier truncated in debug info +#pragma warning(disable: 4710) // function not inlined +#pragma warning(disable: 4711) // function selected for automatic inline expansion +#pragma warning(disable: 4514) // unreferenced inline removed +#endif + +// +// bind_as_compose.cpp - function composition using bind.hpp +// +// Version 1.00.0001 (2001-08-30) +// +// Copyright (c) 2001 Peter Dimov and Multi Media Ltd. +// +// 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) +// + +#include <boost/bind/bind.hpp> +#include <iostream> +#include <string> + +using namespace boost::placeholders; + +std::string f(std::string const & x) +{ + return "f(" + x + ")"; +} + +std::string g(std::string const & x) +{ + return "g(" + x + ")"; +} + +std::string h(std::string const & x, std::string const & y) +{ + return "h(" + x + ", " + y + ")"; +} + +std::string k() +{ + return "k()"; +} + +template<class F> void test(F f) +{ + std::cout << f("x", "y") << '\n'; +} + +int main() +{ + using namespace boost; + + // compose_f_gx + + test( bind(f, bind(g, _1)) ); + + // compose_f_hxy + + test( bind(f, bind(h, _1, _2)) ); + + // compose_h_fx_gx + + test( bind(h, bind(f, _1), bind(g, _1)) ); + + // compose_h_fx_gy + + test( bind(h, bind(f, _1), bind(g, _2)) ); + + // compose_f_k + + test( bind(f, bind(k)) ); + + return 0; +} |