FcCharSetFirstPage − Start enumerating charset contents
#include <fontconfig/fontconfig.h>
FcChar32 FcCharSetFirstPage (const FcCharSet *a, FcChar32[FC_CHARSET_MAP_SIZE] map, FcChar32 *next);
Builds an array of bits in map marking the first page of Unicode coverage of a. *next is set to contains the base code point for the next page in a. Returns the base code point for the page, or FC_CHARSET_DONE if a contains no pages. As an example, if FcCharSetFirstPage returns 0x300 and fills map with
0xffffffff
0xffffffff 0x01000008 0x44300002 0xffffd7f0 0xfffffffb
0xffff7fff 0xffff0003
Then the page contains code points 0x300 through 0x33f (the
first 64 code points on the page) because map[0] and
map[1] both have all their bits set. It also contains
code points 0x343 (0x300 + 32*2 + (4-1)) and 0x35e
(0x300 + 32*2 + (31-1)) because map[2] has the
4th and 31st bits set. The code points represented by map[3]
and later are left as an excercise for the reader ;).