End of Life Ruby 3.0 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
GDBM#close
gdbm.close → nil
ext/gdbm/gdbm.c
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static VALUE
fgdbm_close(VALUE obj)
{
struct dbmdata *dbmp;
GetDBM(obj, dbmp);
gdbm_close(dbmp->di_dbm);
dbmp->di_dbm = 0;
return Qnil;
}
Closes the associated database file.