File freerdp-3-macro.patch of Package freerdp.42881

Index: freerdp-2.11.7/winpr/include/winpr/assert.h
===================================================================
--- freerdp-2.11.7.orig/winpr/include/winpr/assert.h
+++ freerdp-2.11.7/winpr/include/winpr/assert.h
@@ -47,6 +47,41 @@
 	} while (0)
 #endif
 
+/**
+ * @brief C++ safe cast macro
+ * @since version 3.10.1
+ */
+#ifdef __cplusplus
+#define WINPR_CXX_COMPAT_CAST(t, val) static_cast<t>(val)
+#else
+#define WINPR_CXX_COMPAT_CAST(t, val) (t)(val)
+#endif
+
+/**
+ * @brief A macro to do checked integer casts.
+ * will check if the value does change by casting to and from the target type and comparing the
+ * values. will also check if the sign of a value changes during conversion.
+ *
+ * @param type the type to cast to
+ * @param var the integer of unknown type to cast
+ * @return The casted integer
+ * @since version 3.10.1
+ */
+#if defined(__GNUC__) || defined(__clang__)
+#define WINPR_ASSERTING_INT_CAST(type, ivar)                                                    \
+	__extension__({                                                                             \
+		__typeof(ivar) var = ivar;                                                              \
+		WINPR_ASSERT((var) ==                                                                   \
+		             WINPR_CXX_COMPAT_CAST(__typeof(var), WINPR_CXX_COMPAT_CAST(type, (var)))); \
+		WINPR_ASSERT((((var) > 0) && (WINPR_CXX_COMPAT_CAST(type, (var)) > 0)) ||               \
+		             (((var) <= 0) && WINPR_CXX_COMPAT_CAST(type, (var)) <= 0));                \
+		WINPR_CXX_COMPAT_CAST(type, (var));                                                     \
+	})
+
+#else
+#define WINPR_ASSERTING_INT_CAST(type, var) WINPR_CXX_COMPAT_CAST(type, var)
+#endif
+
 #ifdef __cplusplus
 extern "C"
 {