function: map_ld_key | library: avlmap |
Name
map_ld_key
Synopsis
long double map_ld_key( MAP mapping )
Description
map_ld_key returns the key value of the active member of a mapping of key type long double. If there is no currently active member of the mapping, a value of (long double) 0 is returned. To reliably determine if there is an active member, call map_data_type.
Arguments
Return values
Errors
The errno value is set by system functions when an error occurs.
See also
avlmap index page
The documentation, source code, and derived compilations are Copyright © 2000 by Philip Howard. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |