NAME

       gd_nfields_by_type — report the number of fields of a given type in a dirfile

SYNOPSIS

       #include <getdata.h>

       unsigned int gd_nfields_by_type(DIRFILE *dirfile, gd_entype_t type);

DESCRIPTION

       The  gd_nfields_by_type()  function queries a dirfile(5) database specified by dirfile and
       returns the number of fields of type type defined in the database.   Notably,  this  count
       does not include /META fields.

       The  dirfile argument must point to a valid DIRFILE object previously created by a call to
       gd_open(3).  The type argument should be one of the following symbols indicating the  type
       of field to count:

              GD_BIT_ENTRY, GD_CARRAY_ENTRY, GD_CONST_ENTRY, GD_DIVIDE_ENTRY, GD_INDEX_ENTRY,
              GD_LINCOM_ENTRY, GD_LINTERP_ENTRY, GD_MULTIPLY_ENTRY, GD_PHASE_ENTRY,
              GD_POLYNOM_ENTRY, GD_RAW_ENTRY, GD_RECIP_ENTRY, GD_SBIT_ENTRY, GD_STRING_ENTRY.

RETURN VALUE

       Upon  successful  completion, gd_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 gd_error(3).  A descriptive error string for
       the last error encountered can be obtained from a call to gd_error_string(3).

SEE ALSO

       dirfile(5),   gd_open(3),   gd_error(3),   gd_error_string(3),   gd_field_list_by_type(3),
       gd_nfields(3), gd_nmfields_by_type(3)