gee/functions.vala

   1 /* functions.vala
   2  *
   3  * Copyright (C) 2009  Maciej Piechotka
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  18  *
  19  * Author:
  20  *      Maciej Piechotka <uzytkownik2@gmail.com>
  21  */
  22
  23 using GLib;
  24
  25 namespace Gee {
  26
  27         public class Functions {
  28
  29                 public static EqualFunc get_equal_func_for (Type t) {
  30                         if (t == typeof (string)) {
  31                                 return str_equal;
  32                         } else {
  33                                 return direct_equal;
  34                         }
  35                 }
  36
  37                 public static HashFunc get_hash_func_for (Type t) {
  38                         if (t == typeof (string)) {
  39                                 return str_hash;
  40                         } else {
  41                                 return direct_hash;
  42                         }
  43                 }
  44
  45                 public static CompareFunc get_compare_func_for (Type t) {
  46                         if (t == typeof (string)) {
  47                                 return (CompareFunc) strcmp;
  48                         } else {
  49                                 return direct_compare;
  50                         }
  51                 }
  52         }
  53
  54         public static int direct_compare (void* _val1, void* _val2) {
  55                 long val1 = (long)_val1, val2 = (long)_val2;
  56                 if (val1 > val2) {
  57                         return 1;
  58                 } else if (val1 == val2) {
  59                         return 0;
  60                 } else {
  61                         return -1;
  62                 }
  63         }
  64 }