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 * Copyright (c) 2009-2021, Google LLC
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 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
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 *       documentation and/or other materials provided with the distribution.
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 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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#ifndef UPB_INTERNAL_VSNPRINTF_COMPAT_H_
#define UPB_INTERNAL_VSNPRINTF_COMPAT_H_

#include <stdio.h>

// Must be last.
#include "upb/port_def.inc"

UPB_INLINE int _upb_vsnprintf(char* buf, size_t size, const char* fmt,
                              va_list ap) {
#if defined(__MINGW64__) || defined(__MINGW32__) || defined(_MSC_VER)
  // The msvc runtime has a non-conforming vsnprintf() that requires the
  // following compatibility code to become conformant.
  int n = -1;
  if (size != 0) n = _vsnprintf_s(buf, size, _TRUNCATE, fmt, ap);
  if (n == -1) n = _vscprintf(fmt, ap);
  return n;
#else
  return vsnprintf(buf, size, fmt, ap);
#endif
}

#include "upb/port_undef.inc"

#endif  // UPB_INTERNAL_VSNPRINTF_COMPAT_H_