NAME

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

SYNOPSIS

       #include <getdata.h>

       unsigned int gd_nmfields_by_type(DIRFILE *dirfile, const char *parent, gd_entype_t type);

DESCRIPTION

       The  gd_nmfields_by_type() function queries a dirfile(5) database specified by dirfile and
       returns the number of metafields defined in the database for the supplied parent field.

       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_RECIP_ENTRY, GD_SBIT_ENTRY, GD_STRING_ENTRY.

RETURN VALUE

       Upon successful completion, gd_nmfields_by_type() returns the number of defined metafields
       for  the given parent.  On error, it returns zero and sets the dirfile error to a non-zero
       error value.  Possible error values are:

       GD_E_BAD_CODE
               The supplied parent field code was not found, or referred to a metafield itself.

       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_mfield_list_by_type(3),
       gd_nmfields(3), gd_nfields_by_type(3)