NAME

       gd_hide, gd_unhide — hide or unhide a dirfile database entry

SYNOPSIS

       #include <getdata.h>

       int gd_hide(const DIRFILE *dirfile, const char *entry_name);

       int gd_unhide(const DIRFILE *dirfile, const char *entry_name);

DESCRIPTION

       The gd_hide() function hides the field or alias called entry_name in the dirfile(5) database specified by
       dirfile  and  indicates  whether  the field or alias called is hidden or not.  Similarly, the gd_unhide()
       function unhides the specified entry.  An entry can also be hidden or unhidden using gd_alter_entry(3).

       A hidden entry  does  not  appear  in  the  field  lists  returned  by  the  functions  gd_field_list(3),
       gd_field_list_by_type(3),  gd_vectors(3),  gd_constants(3),  and gd_strings(3).  These omissions are also
       reflected in the counts returned by the corresponding field counting functions (gd_nfields(3),  &c.).   A
       hidden field is otherwise no different than an unhidden field.

RETURN VALUE

       Upon successful completion, gd_hide() and gd_unhide() return zero.  On error they returns -1 and sets the
       dirfile error a non-zero error value.  Possible error values are:

       GD_E_ACCMODE
               The specified dirfile was opened read-only.

       GD_E_BAD_CODE
               The field specified by field_code was not found in the database.

       GD_E_BAD_DIRFILE
               The supplied dirfile was invalid.

       GD_E_PROTECTED
               The metadata of the affected format specification fragments was protected from change.

       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

       gd_alter_entry(3), gd_field_list(3), gd_hidden(3), gd_nfields(3), gd_open(3), dirfile(5)

Version 0.9.0                                   10 December 2013                                      gd_hide(3)