Qucs-core
0.0.19
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00001 /* 00002 * nodeset.cpp - node set class implementation 00003 * 00004 * Copyright (C) 2004, 2008 Stefan Jahn <stefan@lkcc.org> 00005 * 00006 * This is free software; you can redistribute it and/or modify 00007 * it under the terms of the GNU General Public License as published by 00008 * the Free Software Foundation; either version 2, or (at your option) 00009 * any later version. 00010 * 00011 * This software is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 * GNU General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU General Public License 00017 * along with this package; see the file COPYING. If not, write to 00018 * the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, 00019 * Boston, MA 02110-1301, USA. 00020 * 00021 * $Id$ 00022 * 00023 */ 00024 00025 #if HAVE_CONFIG_H 00026 # include <config.h> 00027 #endif 00028 00029 #include <stdio.h> 00030 #include <stdlib.h> 00031 #include <string.h> 00032 00033 #include "object.h" 00034 #include "netdefs.h" 00035 #include "nodeset.h" 00036 00037 namespace qucs { 00038 00039 // Constructor creates an unnamed instance of the node set class. 00040 nodeset::nodeset () { 00041 name = NULL; 00042 value = 0.0; 00043 next = NULL; 00044 } 00045 00046 // Constructor creates a named instance of the node set class. 00047 nodeset::nodeset (char * n) { 00048 name = n ? strdup (n) : NULL; 00049 value = 0.0; 00050 next = NULL; 00051 } 00052 00053 /* This full qualified constructor creates an instance of the node set 00054 class containing both the key and the value of the node set. */ 00055 nodeset::nodeset (char * n, nr_double_t val) { 00056 name = n ? strdup (n) : NULL; 00057 value = val; 00058 next = NULL; 00059 } 00060 00061 /* The copy constructor creates a new instance of the node set class 00062 based on the given node set object. */ 00063 nodeset::nodeset (const nodeset & p) { 00064 name = NULL; 00065 if (p.name) name = strdup (p.name); 00066 value = p.value; 00067 next = p.next; 00068 } 00069 00070 // Destructor deletes the node set object. 00071 nodeset::~nodeset () { 00072 free (name); 00073 } 00074 00075 // Sets the name of the node set. 00076 void nodeset::setName (char * n) { 00077 free (name); 00078 name = n ? strdup (n) : NULL; 00079 } 00080 00081 // Returns the name of the node set. 00082 char * nodeset::getName (void) { 00083 return name; 00084 } 00085 00086 /* Goes through the chained list of the node sets and looks for a node 00087 set matching the given key and returns its value if possible. If 00088 there is no such node set the function returns NULL. */ 00089 nodeset * nodeset::findNodeset (char * n) { 00090 for (nodeset * p = this; p != NULL; p = p->getNext ()) { 00091 if (!strcmp (p->getName (), n)) return p; 00092 } 00093 return NULL; 00094 } 00095 00096 // properties 00097 PROP_REQ [] = { 00098 { "U", PROP_REAL, { 0, PROP_NO_STR }, PROP_NO_RANGE }, PROP_NO_PROP }; 00099 PROP_OPT [] = { 00100 PROP_NO_PROP }; 00101 struct define_t nodeset::miscdef = 00102 { "NodeSet", 1, PROP_COMPONENT, PROP_NO_SUBSTRATE, PROP_LINEAR, PROP_DEF }; 00103 00104 } // namespace qucs