--- /dev/null
+////////////////////////////////////////////////////////////////////////////////\r
+\r
+// Author: Andy Rushton\r
+// Copyright: (c) Southampton University 1999-2004\r
+// (c) Andy Rushton 2004-2009\r
+// License: BSD License, see ../docs/license.html\r
+\r
+// Notes:\r
+\r
+// Feb 2007: Rewritten in terms of platform-specific fixes to the\r
+// buffer-overflow problem. Using native functions for this has the added\r
+// benefit of giving access to other features of the C-runtime such as Unicode\r
+// support.\r
+\r
+////////////////////////////////////////////////////////////////////////////////\r
+\r
+#include "dprintf.hpp"\r
+#include <stdio.h>\r
+#include <limits.h>\r
+#include <float.h>\r
+#include <ctype.h>\r
+#include <stdlib.h>\r
+\r
+////////////////////////////////////////////////////////////////////////////////\r
+\r
+namespace stlplus\r
+{\r
+\r
+////////////////////////////////////////////////////////////////////////////////\r
+\r
+ int vdprintf(std::string& formatted, const char* format, va_list args)\r
+ {\r
+#ifdef MSWINDOWS\r
+ int length = 0;\r
+ char* buffer = 0;\r
+ for(int buffer_length = 256; ; buffer_length*=2)\r
+ {\r
+ buffer = (char*)malloc(buffer_length);\r
+ if (!buffer) return -1;\r
+ length = _vsnprintf(buffer, buffer_length-1, format, args);\r
+ if (length >= 0)\r
+ {\r
+ buffer[length] = 0;\r
+ formatted += std::string(buffer);\r
+ free(buffer);\r
+ break;\r
+ }\r
+ free(buffer);\r
+ }\r
+ return length;\r
+#else\r
+ char* buffer = 0;\r
+ int length = vasprintf(&buffer, format, args);\r
+ if (!buffer) return -1;\r
+ if (length >= 0)\r
+ formatted += std::string(buffer);\r
+ free(buffer);\r
+ return length;\r
+#endif\r
+ }\r
+\r
+ int dprintf(std::string& formatted, const char* format, ...)\r
+ {\r
+ va_list args;\r
+ va_start(args, format);\r
+ int result = vdprintf(formatted, format, args);\r
+ va_end(args);\r
+ return result;\r
+ }\r
+\r
+ std::string vdformat(const char* format, va_list args) throw(std::invalid_argument)\r
+ {\r
+ std::string formatted;\r
+ int length = vdprintf(formatted, format, args);\r
+ if (length < 0) throw std::invalid_argument("dprintf");\r
+ return formatted;\r
+ }\r
+\r
+ std::string dformat(const char* format, ...) throw(std::invalid_argument)\r
+ {\r
+ std::string formatted;\r
+ va_list args;\r
+ va_start(args, format);\r
+ int length = vdprintf(formatted, format, args);\r
+ va_end(args);\r
+ if (length < 0) throw std::invalid_argument("dprintf");\r
+ return formatted;\r
+ }\r
+\r
+////////////////////////////////////////////////////////////////////////////////\r
+\r
+} // end namespace stlplus\r