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  1. // -*- C++ -*-
  2. // Copyright (C) 2010-2012, Vaclav Zeman. All rights reserved.
  3. //
  4. // Redistribution and use in source and binary forms, with or without modifica-
  5. // tion, are permitted provided that the following conditions are met:
  6. //
  7. // 1. Redistributions of source code must retain the above copyright notice,
  8. // this list of conditions and the following disclaimer.
  9. //
  10. // 2. Redistributions in binary form must reproduce the above copyright notice,
  11. // this list of conditions and the following disclaimer in the documentation
  12. // and/or other materials provided with the distribution.
  13. //
  14. // THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
  15. // INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  16. // FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  17. // APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  18. // INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
  19. // DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  20. // OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  21. // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23. // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24. #ifndef LOG4CPLUS_HELPERS_SNPRINTF_H
  25. #define LOG4CPLUS_HELPERS_SNPRINTF_H
  26. #include <log4cplus/config.hxx>
  27. #if defined (LOG4CPLUS_HAVE_PRAGMA_ONCE)
  28. #pragma once
  29. #endif
  30. #include <log4cplus/tchar.h>
  31. #include <cstdarg>
  32. #include <vector>
  33. namespace log4cplus { namespace helpers {
  34. class LOG4CPLUS_EXPORT snprintf_buf
  35. {
  36. public:
  37. snprintf_buf ();
  38. tchar const * print (tchar const * fmt, ...)
  39. LOG4CPLUS_FORMAT_ATTRIBUTE (__printf__, 2, 3);
  40. tchar const * print_va_list (tchar const * fmt, std::va_list)
  41. LOG4CPLUS_FORMAT_ATTRIBUTE (__printf__, 2, 0);
  42. private:
  43. std::vector<tchar> buf;
  44. };
  45. } } // namespace log4cplus { namespace helpers
  46. #endif // LOG4CPLUS_HELPERS_SNPRINTF_H