set the size as a quantity in bits, rather than bytes, and return units in bits. For example, ‘Mb’ rather than ‘MB’.
behave the same as g_format_size()
use IEC (base 1024) units with "KiB"-style suffixes. IEC units should only be used for reporting things with a strong "power of 2" basis, like RAM sizes or RAID stripe sizes. Network and storage sizes should be reported in the normal SI units.
include the exact number of bytes as part of the returned string. For example, "45.6 kB (45,612 bytes)".
Flags to modify the format of the string returned by g_format_size_full().