Create cpp/util/other/double-step.cpp and cpp/util/other/float-step.cpp

XPhyro · Sep 16, 2024 · ec1a462 · ec1a462
1 parent 2492ea7
commit ec1a462
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diff --git a/src/cpp/util/other/double-step.cpp b/src/cpp/util/other/double-step.cpp
@@ -0,0 +1,16 @@
+// @CXXFLAGS -Wno-strict-aliasing -Wno-uninitialized
+
+#include <cstdint>
+#include <iostream>
+
+int main()
+{
+    double d;
+
+    static_assert(sizeof(double) == sizeof(std::uint64_t));
+    reinterpret_cast<std::uint64_t&>(d) = 1;
+
+    std::cout << d << '\n';
+
+    return 0;
+}
diff --git a/src/cpp/util/other/float-step.cpp b/src/cpp/util/other/float-step.cpp
@@ -0,0 +1,16 @@
+// @CXXFLAGS -Wno-strict-aliasing -Wno-uninitialized
+
+#include <cstdint>
+#include <iostream>
+
+int main()
+{
+    float f;
+
+    static_assert(sizeof(float) == sizeof(std::uint32_t));
+    reinterpret_cast<std::uint32_t&>(f) = 1;
+
+    std::cout << f << '\n';
+
+    return 0;
+}