Read 2 bytes from the input sequence of the specified streamBuf and load to the specified value the interpretation of those bytes as an extended-binary header value, if that header indicates the value is not in a format reserved for future use. Return 0 on success, and a non-zero value otherwise.
Declared in <balber_berutil.h>
static
int
getValueIfNotReserved(
Header* value,
std::streambuf* streamBuf);