Function StrnSizeS

MdePkg/Library/BaseLib/SafeString.c:175–197

Returns the size of a Null-terminated Unicode string in bytes, including the Null terminator. This function returns the size of the Null-terminated Unicode string specified by String in bytes, including the Null terminator. If String is not aligned on a 16-bit boundary, then ASSERT(). @param String A pointer to a Null-terminated Unicode string. @param MaxSize The maxim

**/
UINTN
EFIAPI
StrnSizeS (
  IN CONST CHAR16              *String,
  IN UINTN                     MaxSize
  )
{
  //
  // If String is a null pointer, then the StrnSizeS function returns zero.
  //
  if (String == NULL) {
    return 0;
  }

  //
  // Otherwise, the StrnSizeS function returns the size of the Null-terminated
  // Unicode string in bytes, including the Null terminator. If there is no
  // Null terminator in the first MaxSize characters of String, then StrnSizeS
  // returns (sizeof (CHAR16) * (MaxSize + 1)) to keep a consistent map with
  // the StrnLenS function.
  //
  return (StrnLenS (String, MaxSize) + 1) * sizeof (*String);
}

/**
  Copies the string pointed to by Source (including the terminating null char)