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Examples of errors detected by the V724…

Examples of errors detected by the V724 diagnostic

V724. Converting integers or pointers to BOOL can lead to a loss of high-order bits. Non-zero value can become 'FALSE'.


Ruby MRI

V724 Converting type 'DWORD' to type 'BOOLEAN' can lead to a loss of high-order bits. Non-zero value can become 'FALSE'. win32.c 4974


static int
w32_symlink(UINT cp, const char *src, const char *link)
{
  ....
  BOOLEAN ret;

  typedef DWORD (WINAPI *create_symbolic_link_func)
                               (WCHAR*, WCHAR*, DWORD);
  static create_symbolic_link_func create_symbolic_link =
         (create_symbolic_link_func)-1;

  ....
  ret = create_symbolic_link(wlink, wsrc, flag);
  ALLOCV_END(buf);

  if (!ret) {
    int e = GetLastError();
    errno = map_errno(e);
    return -1;
  }
  return 0;
}

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