Merge pull request #18 from Progmasoft/build/catch3-identity

Give Catch3 its own build names and headers

1 files changed, 61 insertions, 0 deletions

diff --git a/src/Progmasoft/Catch3/Internal/ReusableStringStream.hpp b/src/Progmasoft/Catch3/Internal/ReusableStringStream.hpp
new file mode 100644
index 00000000..852d2fa3
--- /dev/null
+++ b/src/Progmasoft/Catch3/Internal/ReusableStringStream.hpp
@@ -0,0 +1,61 @@
+
+//              Copyright Catch2 Authors
+// Distributed under the Boost Software License, Version 1.0.
+//   (See accompanying file LICENSE.txt or copy at
+//        https://www.boost.org/LICENSE_1_0.txt)
+
+// SPDX-License-Identifier: BSL-1.0
+#pragma once
+
+#include <Progmasoft/Catch3/Internal/NonCopyable.hpp>
+
+#include <iosfwd>
+#include <cstddef>
+#include <ostream>
+#include <string>
+
+namespace Catch {
+
+    class ReusableStringStream : Detail::NonCopyable {
+        std::size_t m_index;
+        std::ostream* m_oss;
+    public:
+        ReusableStringStream();
+        ~ReusableStringStream();
+
+        //! Returns the serialized state
+        std::string str() const;
+        //! Sets internal state to `str`
+        void str(std::string const& str);
+
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic push
+// Old versions of GCC do not understand -Wnonnull-compare
+#pragma GCC diagnostic ignored "-Wpragmas"
+// Streaming a function pointer triggers Waddress and Wnonnull-compare
+// on GCC, because it implicitly converts it to bool and then decides
+// that the check it uses (a? true : false) is tautological and cannot
+// be null...
+#pragma GCC diagnostic ignored "-Waddress"
+#pragma GCC diagnostic ignored "-Wnonnull-compare"
+#elif defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wpointer-bool-conversion"
+#pragma clang diagnostic ignored "-Wmicrosoft-cast"
+#endif
+
+        template<typename T>
+        auto operator << ( T const& value ) -> ReusableStringStream& {
+            *m_oss << value;
+            return *this;
+        }
+
+#if defined(__GNUC__) && !defined(__clang__)
+#pragma GCC diagnostic pop
+#elif defined(__clang__)
+#pragma clang diagnostic pop
+#endif
+        auto get() -> std::ostream& { return *m_oss; }
+    };
+}
+