X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/a0f6b076110ea79f25e13701d7f0ee4b38630d4d..720d742f8e74acf1ade85a7d39c02fa5b9528b5a:/src/system.h

diff --git a/src/system.h b/src/system.h
index d878feb2..56a0ba0e 100644
--- a/src/system.h
+++ b/src/system.h
@@ -22,6 +22,8 @@
 # include <config.h>
 #endif
 
+#include <stdio.h>
+
 #ifdef MSDOS
 # include <io.h>
 #endif
@@ -32,18 +34,14 @@
 # define getpid _getpid
 #endif
 
-#if defined(HAVE_STDLIB_H) || defined(MSDOS)
+#if HAVE_STDLIB_H
 # include <stdlib.h>
 #endif
 
-#if defined(HAVE_UNISTD_H)
+#if HAVE_UNISTD_H
 # include <unistd.h>
 #endif
 
-#if (defined(VMS) || defined(MSDOS)) && !defined(HAVE_STRING_H)
-# define HAVE_STRING_H 1
-#endif
-
 #if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
 # include <string.h>
 /* An ANSI string.h and pre-ANSI memory.h might conflict.  */
@@ -67,6 +65,11 @@
 extern int errno;
 #endif
 
+#if PROTOTYPES
+# define PARAMS(p) p
+#else
+# define PARAMS(p) ()
+#endif
 
 /*-----------------.
 | GCC extensions.  |
@@ -119,3 +122,29 @@ extern int errno;
 #endif
 
 #endif  /* BISON_SYSTEM_H */
+
+
+/*---------------------------------.
+| Machine-dependencies for Bison.  |
+`---------------------------------*/
+
+#ifdef	eta10
+# define	MAXSHORT	2147483647
+# define	MINSHORT	-2147483648
+#else
+# define	MAXSHORT	32767
+# define	MINSHORT	-32768
+#endif
+
+#if defined (MSDOS) && !defined (__GO32__)
+# define	BITS_PER_WORD	16
+# define MAXTABLE	16383
+#else
+# define	BITS_PER_WORD	32
+# define MAXTABLE	32767
+#endif
+
+#define	WORDSIZE(n)	(((n) + BITS_PER_WORD - 1) / BITS_PER_WORD)
+#define	SETBIT(x, i)	((x)[(i)/BITS_PER_WORD] |= (1<<((i) % BITS_PER_WORD)))
+#define RESETBIT(x, i)	((x)[(i)/BITS_PER_WORD] &= ~(1<<((i) % BITS_PER_WORD)))
+#define BITISSET(x, i)	(((x)[(i)/BITS_PER_WORD] & (1<<((i) % BITS_PER_WORD))) != 0)