gd_frameoffset64 man page

gd_frameoffset64, gd_alter_frameoffset64 — report or change the frame offset of fields in a dirfile, with largefile support


#define GD_64BIT_API
#include <getdata.h>

gd_off64_t gd_frameoffset(DIRFILE *dirfile, int fragment_index);

int gd_alter_frameoffset64(DIRFILE *dirfile, gd_off64_t offset, int fragment_index, int move);


These versions of gd_frameoffset(3) and gd_alter_frameoffset(3) use a 64-bit offset type (gd_off64_t), where one is available, regardless of the size of off_t. They are only available if one defines GD_64BIT_API or _LARGEFILE64_SOURCE before including getdata.h.

If off_t is a 64-bit type (possibly because _FILE_OFFSET_BITS has been defined to 64), these functions will the same as gd_framenum_subset(3) and gd_alter_frameoffset(3). Otherwise, gd_framenum_subset(3) and gd_alter_frameoffset(3) will be versions of these function which use a 32-bit off_t.

See Also

gd_alter_frameoffset(3), gd_frameoffset(3), feature_test_macros(7)


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