Adding upstream version 14.2.21.upstream/14.2.21upstream

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

1 files changed, 24 insertions, 0 deletions

diff --git a/src/boost/libs/contract/example/features/introduction_comments.cpp b/src/boost/libs/contract/example/features/introduction_comments.cpp
new file mode 100644
index 00000000..3eba12f8
--- /dev/null
+++ b/src/boost/libs/contract/example/features/introduction_comments.cpp
@@ -0,0 +1,24 @@
+
+// Copyright (C) 2008-2018 Lorenzo Caminiti
+// Distributed under the Boost Software License, Version 1.0 (see accompanying
+// file LICENSE_1_0.txt or a copy at http://www.boost.org/LICENSE_1_0.txt).
+// See: http://www.boost.org/doc/libs/release/libs/contract/doc/html/index.html
+
+#include <cassert>
+
+//[introduction_comments
+void inc(int& x)
+    // Precondition:    x < std::numeric_limit<int>::max()
+    // Postcondition:   x == oldof(x) + 1
+{
+    ++x; // Function body.
+}
+//]
+
+int main() {
+    int x = 10;
+    inc(x);
+    assert(x == 11);
+    return 0;
+}
+