debian man page for gd_nmfields

gd_nmfields(3)							      GETDATA							    gd_nmfields(3)

NAME
       gd_nmfields -- report the number of metafields in a dirfile

SYNOPSIS
       #include <getdata.h>

       unsigned int gd_nmfields(DIRFILE *dirfile, const char *parent);

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

       The dirfile argument must point to a valid DIRFILE object previously created by a call to gd_open(3).

RETURN VALUE
       Upon successful completion, gd_nmfields() 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(3), gd_nfields(3), gd_nmfields_by_type(3), gd_nmvectors(3)

Version 0.7.0							   16 July 2010 						    gd_nmfields(3)