Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 57 insertions, 0 deletions

diff --git a/src/boost/libs/signals2/example/slot_arguments.cpp b/src/boost/libs/signals2/example/slot_arguments.cpp
new file mode 100644
index 000000000..86c49cb6f
--- /dev/null
+++ b/src/boost/libs/signals2/example/slot_arguments.cpp
@@ -0,0 +1,57 @@
+// Example program for passing arguments from signal invocations to slots.
+//
+// Copyright Douglas Gregor 2001-2004.
+// Copyright Frank Mori Hess 2009.
+//
+// Use, modification and
+// distribution is subject to 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)
+// For more information, see http://www.boost.org
+
+#include <iostream>
+#include <boost/signals2/signal.hpp>
+
+//[ slot_arguments_slot_defs_code_snippet
+void print_args(float x, float y)
+{
+  std::cout << "The arguments are " << x << " and " << y << std::endl;
+}
+
+void print_sum(float x, float y)
+{
+  std::cout << "The sum is " << x + y << std::endl;
+}
+
+void print_product(float x, float y)
+{
+  std::cout << "The product is " << x * y << std::endl;
+}
+
+void print_difference(float x, float y)
+{
+  std::cout << "The difference is " << x - y << std::endl;
+}
+
+void print_quotient(float x, float y)
+{
+  std::cout << "The quotient is " << x / y << std::endl;
+}
+//]
+
+int main()
+{
+//[ slot_arguments_main_code_snippet
+  boost::signals2::signal<void (float, float)> sig;
+
+  sig.connect(&print_args);
+  sig.connect(&print_sum);
+  sig.connect(&print_product);
+  sig.connect(&print_difference);
+  sig.connect(&print_quotient);
+
+  sig(5., 3.);
+//]
+  return 0;
+}
+