get_nfields_by_type (3) Linux Manual Page
get_nfields_by_type — report the number of fields of a given type in a dirfile
Synopsis
#include <getdata.h>- unsigned int get_nfields_by_type(DIRFILE *dirfile, gd_entype_t type);
Description
The dirfile argument must point to a valid DIRFILE object previously created by a call to dirfile_open(3). The type argument should be one of the following symbols indicating the type of field to count:
- GD_RAW_ENTRY,~GD_LINCOM_ENTRY,~GD_LINTERP_ENTRY,~ GD_BIT_ENTRY,~GD_MULTIPLY_ENTRY,~GD_PHASE_ENTRY,~ GD_CONST_ENTRY,~GD_STRING_ENTRY,~GD_INDEX_ENTRY
Return Value
Upon successful completion, get_nfields_by_type() 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).