import quincy beta 17.1.0

[ceph.git] / ceph / src / boost / libs / pfr / test / run / destructuring_tie.cpp

diff --git a/ceph/src/boost/libs/pfr/test/run/destructuring_tie.cpp b/ceph/src/boost/libs/pfr/test/run/destructuring_tie.cpp
new file mode 100644 (file)
index 0000000..09744f6
--- /dev/null
+++ b/ceph/src/boost/libs/pfr/test/run/destructuring_tie.cpp
@@ -0,0 +1,60 @@
+// Copyright (c) 2018 Adam Butcher, Antony Polukhin
+// Copyright (c) 2019-2020 Antony Polukhin
+//
+// 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 <boost/pfr/core.hpp>
+#include <boost/core/lightweight_test.hpp>
+
+auto parseHex(char const* p, size_t limit = ~0u) {
+    struct { size_t val; char const* rest; } res = { 0, p };
+    while (limit) {
+        int v = *res.rest;
+        if (v >= '0' && v <= '9')
+            v = v - '0';
+        else if (v >= 'A' && v <= 'F')
+            v = 10 + v - 'A';
+        else if (v >= 'a' && v <= 'f')
+            v = 10 + v - 'a';
+        else
+            break;
+        res.val = (res.val << 4) + v;
+        --limit;
+        ++res.rest;
+    }
+    return res;
+}
+
+auto parseLinePrefix(char const* line) {
+     struct {
+          size_t byteCount, address, recordType; char const* rest;
+     } res;
+     using namespace boost::pfr;
+     tie_from_structure (res.byteCount, line) = parseHex(line, 2);
+     tie_from_structure (res.address, line) = parseHex(line, 4);
+     tie_from_structure (res.recordType, line) = parseHex(line, 2);
+     res.rest = line;
+     return res;
+}
+
+int main() {
+    auto line = "0860E000616263646566000063";
+    auto meta = parseLinePrefix(line);
+    BOOST_TEST_EQ(meta.byteCount, 8);
+    BOOST_TEST_EQ(meta.address, 24800);
+    BOOST_TEST_EQ(meta.recordType, 0);
+    BOOST_TEST_EQ(meta.rest, line + 8);
+
+    size_t val;
+    using namespace boost::pfr;
+
+    tie_from_structure (val, std::ignore) = parseHex("a73b");
+    BOOST_TEST_EQ(val, 42811);
+
+    tie_from_structure (std::ignore, line) = parseHex(line, 8);
+    BOOST_TEST_EQ(line, meta.rest);
+
+    return boost::report_errors();
+}
+