/* $Id$ */ /* * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) * Copyright (C) 2003-2008 Benny Prijono * * 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 USA */ #ifndef __PJ_COMPAT_RAND_H__ #define __PJ_COMPAT_RAND_H__ /** * @file rand.h * @brief Provides platform_rand() and platform_srand() functions. */ #if defined(PJ_HAS_STDLIB_H) && PJ_HAS_STDLIB_H != 0 /* * Use stdlib based rand() and srand(). */ # include # define platform_srand srand # if defined(RAND_MAX) && RAND_MAX <= 0xFFFF /* * When rand() is only 16 bit strong, double the strength * by calling it twice! */ PJ_INLINE(int) platform_rand(void) { return ((rand() & 0xFFFF) << 16) | (rand() & 0xFFFF); } # else # define platform_rand rand # endif #else # warning "platform_rand() is not implemented" # define platform_rand() 1 # define platform_srand(seed) #endif #endif /* __PJ_COMPAT_RAND_H__ */