summaryrefslogtreecommitdiffstats
path: root/src/boost/libs/hof/example/pointfree.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:45:59 +0000
commit19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch)
tree42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/boost/libs/hof/example/pointfree.cpp
parentInitial commit. (diff)
downloadceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz
ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.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/hof/example/pointfree.cpp')
-rw-r--r--src/boost/libs/hof/example/pointfree.cpp33
1 files changed, 33 insertions, 0 deletions
diff --git a/src/boost/libs/hof/example/pointfree.cpp b/src/boost/libs/hof/example/pointfree.cpp
new file mode 100644
index 000000000..6aa136479
--- /dev/null
+++ b/src/boost/libs/hof/example/pointfree.cpp
@@ -0,0 +1,33 @@
+/*=============================================================================
+ Copyright (c) 2017 Paul Fultz II
+ pointfree.cpp
+ 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)
+==============================================================================*/
+/*=============================================================================
+ Copyright (c) 2016 Paul Fultz II
+ pointfree.cpp
+ 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 "example.h"
+
+using namespace boost::hof;
+
+BOOST_HOF_STATIC_FUNCTION(simple_print) = BOOST_HOF_LIFT(std::ref(std::cout) << _);
+BOOST_HOF_STATIC_FUNCTION(print) = proj(simple_print);
+BOOST_HOF_STATIC_FUNCTION(print_lines) = proj(flow(simple_print, _ << std::integral_constant<char, '\n'>{}));
+BOOST_HOF_STATIC_FUNCTION(max) = fold(BOOST_HOF_LIFT(std::max));
+
+int main()
+{
+ simple_print("Hello\n");
+ print("Hello", "World\n");
+ print_lines("Hello", "World");
+
+ auto n = max(1, 2, 4, 3); // Returns 4
+ auto m = max(0.1, 0.2, 0.5, 0.4); // Returns 0.5
+
+ print_lines(n, m);
+}