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

Give Catch3 its own build names and headers

1 files changed, 43 insertions, 0 deletions

diff --git a/src/Progmasoft/Catch3/Internal/FloatingPointHelpers.cpp b/src/Progmasoft/Catch3/Internal/FloatingPointHelpers.cpp
new file mode 100644
index 00000000..f9858bb1
--- /dev/null
+++ b/src/Progmasoft/Catch3/Internal/FloatingPointHelpers.cpp
@@ -0,0 +1,43 @@
+
+//              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
+
+#include <Progmasoft/Catch3/Internal/FloatingPointHelpers.hpp>
+
+#include <cstring>
+
+namespace Catch {
+    namespace Detail {
+
+        uint32_t convertToBits(float f) {
+            static_assert(sizeof(float) == sizeof(uint32_t), "Important ULP matcher assumption violated");
+            uint32_t i;
+            std::memcpy(&i, &f, sizeof(f));
+            return i;
+        }
+
+        uint64_t convertToBits(double d) {
+            static_assert(sizeof(double) == sizeof(uint64_t), "Important ULP matcher assumption violated");
+            uint64_t i;
+            std::memcpy(&i, &d, sizeof(d));
+            return i;
+        }
+
+#if defined( __GNUC__ ) || defined( __clang__ )
+#    pragma GCC diagnostic push
+#    pragma GCC diagnostic ignored "-Wfloat-equal"
+#endif
+        bool directCompare( float lhs, float rhs ) { return lhs == rhs; }
+        bool directCompare( double lhs, double rhs ) { return lhs == rhs; }
+#if defined( __GNUC__ ) || defined( __clang__ )
+#    pragma GCC diagnostic pop
+#endif
+
+
+    } // end namespace Detail
+} // end namespace Catch
+