proof of concept

Author: heinwessels-philips

infra/util/ReallyAssert.hpp

@@ -4,11 +4,29 @@
 //  really_assert is a macro similar to assert, however it is not compiled away in release mode
 
 #include <cassert>
+#include <cstdint>
 #include <cstdlib>
 
 #ifdef EMIL_HOST_BUILD
 #include <functional>
 
+namespace
+{
+    // Source - https://stackoverflow.com/a/19004720
+    // Posted by Chetan Reddy, modified by community. See post 'Timeline' for change history
+    // Retrieved 2026-01-06, License - CC BY-SA 4.0
+
+    constexpr int32_t basename_index(const char* const path, const int32_t index = 0, const int32_t slash_index = -1)
+    {
+        return path[index]
+                   ? (path[index] == '/'
+                             ? basename_index(path, index + 1, index)
+                             : basename_index(path, index + 1, slash_index))
+                   : (slash_index + 1);
+    }
+
+}
+
 namespace infra
 {
     using AssertionFailureHandler = std::function<void(const char* condition, const char* file, int line)>;
@@ -19,9 +37,17 @@ namespace infra
 }
 #endif
 
+#define STRINGIZE_DETAIL(x) #x
+#define STRINGIZE(x) STRINGIZE_DETAIL(x)
+
+// TODO(HW): Does this work for ehader files and everything?
+#define __FILENAME__ ({ static const int32_t basename_idx = basename_index(__FILE__); \
+                        static_assert (basename_idx >= 0, "compile-time basename");   \
+                        __FILE__ ":" STRINGIZE(__LINE__) ": " + basename_idx; })
+
 #ifdef EMIL_HOST_BUILD
 #define INFRA_UTIL_REALLY_ASSERT_TRIGGER(condition) \
-    infra::HandleAssertionFailure(#condition, __FILE__, __LINE__)
+    infra::HandleAssertionFailure(#condition, __FILENAME__, __LINE__)
 #else
 #define INFRA_UTIL_REALLY_ASSERT_TRIGGER(condition)
 #endif