1 files changed, 24 insertions, 0 deletions
diff --git a/src/boost/libs/callable_traits/example/is_invocable.cpp b/src/boost/libs/callable_traits/example/is_invocable.cpp
new file mode 100644
index 00000000..a374de01
--- /dev/null
+++ b/src/boost/libs/callable_traits/example/is_invocable.cpp
@@ -0,0 +1,24 @@
+/*<-
+Copyright (c) 2016 Barrett Adair
+
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+->*/
+
+//[ is_invocable
+#include <type_traits>
+#include <boost/callable_traits/is_invocable.hpp>
+
+namespace ct = boost::callable_traits;
+
+struct foo {
+    template<typename T>
+    typename std::enable_if<std::is_integral<T>::value>::type
+    operator()(T){}
+};
+
+static_assert(ct::is_invocable<foo, int>::value, "");
+static_assert(!ct::is_invocable<foo, double>::value, "");
+
+int main() {}
+//]