1 /* Expression evaluation for plural form selection. 2 Copyright (C) 2005-2006 Free Software Foundation, Inc. 3 Written by Bruno Haible <bruno@clisp.org>, 2005. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2, or (at your option) 8 any later version. 9 10 This program 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 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software Foundation, 17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 18 19 #ifndef _PLURAL_EVAL_H 20 #define _PLURAL_EVAL_H 21 22 23 /* Definition of 'struct expression', and 24 declaration of extract_plural_expression() and plural_eval(). */ 25 #include "plural-exp.h" 26 27 28 /* Protection against signals during plural evaluation. */ 29 30 #include <setjmp.h> 31 32 /* Some platforms don't have the sigjmp_buf type in <setjmp.h>. */ 33 #if defined _MSC_VER || defined __MINGW32__ 34 /* Native Woe32 API. */ 35 # define sigjmp_buf jmp_buf 36 # define sigsetjmp(env,savesigs) setjmp (env) 37 # define siglongjmp longjmp 38 #endif 39 40 /* We use siginfo to get precise information about the signal. 41 But siginfo doesn't work on Irix 6.5 and on Cygwin 2005. */ 42 #if HAVE_SIGINFO && !defined (__sgi) && !defined (__CYGWIN__) 43 # define USE_SIGINFO 1 44 #endif 45 46 /* Exit point. Must be set before calling install_sigfpe_handler(). */ 47 extern sigjmp_buf sigfpe_exit; 48 49 #if USE_SIGINFO 50 /* Additional information that is set before sigfpe_exit is invoked. */ 51 extern int sigfpe_code; 52 #endif 53 54 /* Protect against signals during plural evaluation. Must be called around 55 calls to plural_eval(). Must be called in pairs. */ 56 extern void install_sigfpe_handler (void); 57 extern void uninstall_sigfpe_handler (void); 58 59 60 #endif /* _PLURAL_EVAL_H */ 61