Initial Vexta Core v0.1.0 release

src/compat/glibcxx_sanity.cpp

@@ -0,0 +1,62 @@
+// Copyright (c) 2009-2020 The Bitcoin Core developers
+// Copyright (c) 2014-2020 The DigiByte Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <list>
+#include <locale>
+#include <stdexcept>
+
+namespace
+{
+// trigger: use ctype<char>::widen to trigger ctype<char>::_M_widen_init().
+// test: convert a char from narrow to wide and back. Verify that the result
+//   matches the original.
+bool sanity_test_widen(char testchar)
+{
+    const std::ctype<char>& test(std::use_facet<std::ctype<char> >(std::locale()));
+    return test.narrow(test.widen(testchar), 'b') == testchar;
+}
+
+// trigger: use list::push_back and list::pop_back to trigger _M_hook and
+//   _M_unhook.
+// test: Push a sequence of integers into a list. Pop them off and verify that
+//   they match the original sequence.
+bool sanity_test_list(unsigned int size)
+{
+    std::list<unsigned int> test;
+    for (unsigned int i = 0; i != size; ++i)
+        test.push_back(i + 1);
+
+    if (test.size() != size)
+        return false;
+
+    while (!test.empty()) {
+        if (test.back() != test.size())
+            return false;
+        test.pop_back();
+    }
+    return true;
+}
+
+} // namespace
+
+// trigger: string::at(x) on an empty string to trigger __throw_out_of_range_fmt.
+// test: force std::string to throw an out_of_range exception. Verify that
+//   it's caught correctly.
+bool sanity_test_range_fmt()
+{
+    std::string test;
+    try {
+        test.at(1);
+    } catch (const std::out_of_range&) {
+        return true;
+    } catch (...) {
+    }
+    return false;
+}
+
+bool glibcxx_sanity_test()
+{
+    return sanity_test_widen('a') && sanity_test_list(100) && sanity_test_range_fmt();
+}