/*----------------------------------------------------------------------------  ChucK Concurrent, On-the-fly Audio Programming Language    Compiler and Virtual Machine   Copyright (c) 2004 Ge Wang and Perry R. Cook.  All rights reserved.    http://chuck.stanford.edu/    http://chuck.cs.princeton.edu/   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 02111-1307  U.S.A.-----------------------------------------------------------------------------*/ //-----------------------------------------------------------------------------// file: chuck_utils.cpp// desc: common utils, adapted from Tiger Compiler Andrew Appel//// author: Ge Wang (ge@ccrma.stanford.edu | gewang@cs.princeton.edu)// adapted from: Andrew Appel (appel@cs.princeton.edu)// date: Summer 2002//-----------------------------------------------------------------------------#include <stdio.h>#include <stdlib.h>#include <string.h>#include "chuck_utils.h"#include "chuck_errmsg.h"    void * checked_malloc( int len ){    if( !len ) return NULL;     void *p = calloc( len, 1 );    if( !p )    {        EM_error2( 0, "out of memory!\n" );        exit( 1 );    }     return p;}    c_str cc_str( char * s ){    c_str p = (c_str)checked_malloc( strlen(s)+1 );    strcpy( p, s );     return p;}    U_boolList U_BoolList( t_CKBOOL head, U_boolList tail ){    U_boolList list = (U_boolList)checked_malloc( sizeof(*list) );    list->head = head;    list->tail = tail;     return list;}