From 19fcec84d8d7d21e796c7624e521b60d28ee21ed Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:45:59 +0200 Subject: Adding upstream version 16.2.11+ds. Signed-off-by: Daniel Baumann --- src/boost/libs/hana/example/zip_with.cpp | 51 ++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 src/boost/libs/hana/example/zip_with.cpp (limited to 'src/boost/libs/hana/example/zip_with.cpp') diff --git a/src/boost/libs/hana/example/zip_with.cpp b/src/boost/libs/hana/example/zip_with.cpp new file mode 100644 index 000000000..55ae01026 --- /dev/null +++ b/src/boost/libs/hana/example/zip_with.cpp @@ -0,0 +1,51 @@ +// Copyright Louis Dionne 2013-2017 +// Distributed under the Boost Software License, Version 1.0. +// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) + +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +namespace hana = boost::hana; + + +// Basic usage: +static_assert( + hana::zip_with(hana::mult, hana::make_tuple(1, 2, 3, 4), hana::make_tuple(5, 6, 7, 8)) + == + hana::make_tuple(5, 12, 21, 32) +, ""); + + + +// Example of computing a tuple of all the common types of several tuples: +template +using common_tuple_t = typename decltype( + hana::unpack( + hana::zip_with( + hana::metafunction, + hana::transform(std::declval(), hana::decltype_)... + ), + hana::template_ + ) +)::type; + + +static_assert(std::is_same< + common_tuple_t< + std::tuple, + std::tuple, + std::tuple + >, + std::tuple +>::value, ""); + +int main() { } -- cgit v1.2.3