Function parse_cbor_number

example/cbor.cpp:172–216

    const unsigned char* first, const unsigned char* last, value& v );

const unsigned char*
parse_cbor_number(
    const unsigned char* first, const unsigned char* last, unsigned char ch, std::uint64_t& n )
{
    unsigned char cv = ch & 31;

    if( cv < 24 )
    {
        n = cv;
    }
    else if( cv == 24 )
    {
        ensure( 1, first, last );
        n = *first++;
    }
    else if( cv == 25 )
    {
        ensure( 2, first, last );
        n = boost::endian::load_big_u16( first );
        first += 2;
    }
    else if( cv == 26 )
    {
        ensure( 4, first, last );
        n = boost::endian::load_big_u32( first );
        first += 4;
    }
    else if( cv == 27 )
    {
        ensure( 8, first, last );
        n = boost::endian::load_big_u64( first );
        first += 8;
    }
    else if( cv == 31 )
    {
        // infinite array/object
        throw_format_error( "Infinite sequences aren't supported" );
    }
    else
    {
        throw_format_error( "Invalid minor type" );
    }

    return first;
}

const unsigned char*
parse_cbor_string(