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gd_framenum_subset64(3) GETDATA gd_framenum_subset64(3)


gd_framenum_subset64 — perform a reverse look-up on a monotonic Dirfile field, with largefile support.


#define GD_64BIT_API
#include <getdata.h>

double gd_framenum_subset64(DIRFILE *dirfile, const char *field_code, double value, gd_off64_t field_start, gd_off64_t field_end);


This version of gd_framenum_subset(3) uses a 64-bit offset type (gd_off64_t), where one is available, regardless of the size of off_t. It is only guaranteed to be available if GD_64BIT_API is defined before including getdata.h.

If off_t is a 64-bit type, this function will the same as gd_framenum_subset(3). Otherwise, gd_framenum_subset(3) will be a version of this function which uses a 32-bit off_t.


gd_framenum_subset(3), feature_test_macros(7)

25 December 2016 Version 0.10.0