first commit

Version 3.x.x

core/objects.cc

@@ -0,0 +1,39 @@
+/**
+ * Support of object hierarchy.
+ */
+
+#include "objects.h"
+
+#ifdef __APPLE__
+#define _vsnprintf_s(dest, dest_sz, cnt, fmt, args) _vsnprintf((dest), (dest_sz), (fmt), (args))
+#endif // __APPLE__
+
+std::string string_format(const char *format, ...) 
+{
+	va_list args;
+	va_start(args, format);
+	int size = 100;
+	std::string res;
+	for (;;) {
+		res.resize(size);
+        va_start(args, format);
+        int n = _vsnprintf_s(&res[0], size, _TRUNCATE, format, args);
+        if (n > -1 && n < size) {
+            res.resize(n);
+			break;
+        }
+        if (n > -1)
+            size = n + 1;
+        else
+            size *= 2;
+	}
+	va_end(args);
+	return res;
+}
+
+int AddressableObject::CompareWith(const AddressableObject &other) const
+{
+	if (address_ > other.address_) return 1;
+	if (address_ < other.address_) return -1;
+	return 0;
+}