/***
*signal.h - defines signal values and routines
*
*	Copyright (c) 1985-1989, Microsoft Corporation.  All rights reserved.
*
*Purpose:
*	This file defines the signal values and declares the signal functions.
*	[ANSI/System V]
*
****/


#ifndef NO_EXT_KEYS	/* extensions enabled */
	#define _CDECL	cdecl
#else /* extensions not enabled */
	#define _CDECL
#endif /* NO_EXT_KEYS */

#ifndef _SIG_ATOMIC_T_DEFINED
typedef int sig_atomic_t;
#define _SIG_ATOMIC_T_DEFINED
#endif


#define NSIG 23		/* maximum signal number + 1 */

/* signal types */
/* SIGINT, SIGFPE, SIGILL, SIGSEGV, and SIGABRT are recognized on DOS 3.x */

#define SIGINT		2	/* interrupt - corresponds to DOS 3.x int 23H */
#define SIGILL		4	/* illegal instruction - invalid function image */
#define SIGFPE		8	/* floating point exception */
#define SIGSEGV		11	/* segment violation */
#define SIGTERM		15	/* Software termination signal from kill */
#define SIGUSR1		16	/* User defined signal 1 */
#define SIGUSR2		17	/* User defined signal 2 */
#define SIGUSR3		20	/* User defined signal 3 */
#define SIGBREAK	21	/* Ctrl-Break sequence */
#define SIGABRT		22	/* abnormal termination triggered by abort call */


/* signal action codes */
/* SIG_DFL and SIG_IGN are recognized on DOS 3.x */

#define SIG_DFL (void (_CDECL *)())0	/* default signal action */
#define SIG_IGN (void (_CDECL *)())1	/* ignore */
#define SIG_SGE (void (_CDECL *)())3	/* signal gets error */
#define SIG_ACK (void (_CDECL *)())4	/* error if handler not setup */


/* signal error value (returned by signal call on error) */

#define SIG_ERR (void (_CDECL *)())-1	/* signal error value */


/* function prototypes */

void (_CDECL * _CDECL signal(int, void (_CDECL *)()))();
int _CDECL raise(int);