get_nfields (3) Linux Manual Page
get_nfields — report the number of fields in a dirfile
Synopsis
#include <getdata.h>- unsigned int get_nfields(DIRFILE *dirfile);
Description
The dirfile argument must point to a valid DIRFILE object previously created by a call to dirfile_open(3).
Return Value
Upon successful completion, get_nfields() returns the number of defined fields in the dirfile. On error, it returns zero and sets the dirfile error to a non-zero error value. Possible error values are:- GD_E_BAD_DIRFILE
- The supplied dirfile was invalid. The dirfile error may be retrieved by calling get_error(3). A descriptive error string for the last error encountered can be obtained from a call to get_error_string(3).