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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp | |
parent | Initial commit. (diff) | |
download | ceph-upstream/16.2.11+ds.tar.xz ceph-upstream/16.2.11+ds.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp')
-rw-r--r-- | src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp b/src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp new file mode 100644 index 000000000..d80f2f9f0 --- /dev/null +++ b/src/boost/libs/parameter/test/literate/building-argumentpacks0.cpp @@ -0,0 +1,61 @@ + +#include <boost/parameter.hpp> +#include <iostream> + +BOOST_PARAMETER_NAME(index) + +template <typename ArgumentPack> +int print_index(ArgumentPack const& args) +{ + std::cout << "index = " << args[_index] << std::endl; + return 0; +} + +BOOST_PARAMETER_NAME(name) + +template <typename ArgumentPack> +int print_name_and_index(ArgumentPack const& args) +{ + std::cout << "name = " << args[_name] << "; "; + return print_index(args); +} + +#include <boost/core/lightweight_test.hpp> +#include <boost/mpl/bool.hpp> +#include <boost/mpl/placeholders.hpp> +#include <boost/mpl/if.hpp> +#include <boost/type_traits/is_convertible.hpp> + +int main() +{ + int x = print_index(_index = 3); // prints "index = 3" + int y = print_name_and_index((_index = 3, _name = "jones")); + boost::parameter::parameters< + boost::parameter::required< + tag::name + , boost::mpl::if_< + boost::is_convertible<boost::mpl::_,char const*> + , boost::mpl::true_ + , boost::mpl::false_ + > + > + , boost::parameter::optional< + tag::index + , boost::mpl::if_< + boost::is_convertible<boost::mpl::_,int> + , boost::mpl::true_ + , boost::mpl::false_ + > + > + > spec; + char const sam[] = "sam"; + int twelve = 12; + int z0 = print_name_and_index(spec(sam, twelve)); + int z1 = print_name_and_index(spec(_index=12, _name="sam")); + BOOST_TEST(!x); + BOOST_TEST(!y); + BOOST_TEST(!z0); + BOOST_TEST(!z1); + return boost::report_errors(); +} + |