tree_types.c

/*****************************************************************************
 * tree_types.c:
 *****************************************************************************
 * Copyright (C) 2004 the VideoLAN team
 * $Id: tree_types.c 11664 2005-07-09 06:17:09Z courmisch $
 *
 * Authors: Cyril Deguet <[email protected]>
 *          code from projectM http://xmms-projectm.sourceforge.net
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/



#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "common.h"

/* Compares integer value numbers in 32 bit range */
int compare_int(int * num1, int * num2) {

        if ((*num1) < (*num2))
                return -1;
        if ((*num1) > (*num2))
                return 1;
        
        return 0;
}

/* Compares strings in lexographical order */
int compare_string(char * str1, char * str2) {

  //  printf("comparing \"%s\" to \"%s\"\n", str1, str2);
  //return strcmp(str1, str2);
  return strncmp(str1, str2, MAX_TOKEN_SIZE-1);
        
}       

/* Compares a string in version order. That is, file1 < file2 < file10 */
int compare_string_version(char * str1, char * str2) {

  return strverscmp(str1, str2);

}


void free_int(void * num) {
        free(num);
}


void free_string(char * string) {
        
        free(string);   
}       
 
void * copy_int(int * num) {
        
        int * new_num;
        
        if ((new_num = (int*)malloc(sizeof(int))) == NULL)
                return NULL;

        *new_num = *num;
        
        return (void*)new_num;
}       


void * copy_string(char * string) {
        
        char * new_string;
        
        if ((new_string = (char*)malloc(MAX_TOKEN_SIZE)) == NULL)
                return NULL;
        
        strncpy(new_string, string, MAX_TOKEN_SIZE-1);
        
        return (void*)new_string;
}

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