X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/c932d6135ca3e508f7136810b9b0bf79725290b9..24d84dd26c24a33adf1ae4ba245c53901507e650:/src/system.h

diff --git a/src/system.h b/src/system.h
index 52b597b1..f0a76ceb 100644
--- a/src/system.h
+++ b/src/system.h
@@ -39,6 +39,18 @@
 #include <stdlib.h>
 #include <string.h>
 
+#define STREQ(L, R)  (strcmp(L, R) == 0)
+#define STRNEQ(L, R) (!STREQ(L, R))
+
+/* Just like strncmp, but the second argument must be a literal string
+   and you don't specify the length.  */
+#define STRNCMP_LIT(S, Literal)                         \
+  strncmp (S, "" Literal "", sizeof (Literal) - 1)
+
+/* Whether Literal is a prefix of S.  */
+#define STRPREFIX_LIT(Literal, S)               \
+  (STRNCMP_LIT (S, Literal) == 0)
+
 #if HAVE_SYS_TYPES_H
 # include <sys/types.h>
 #endif
@@ -52,6 +64,8 @@
 typedef size_t uintptr_t;
 #endif
 
+// Version mismatch.
+#define EX_MISMATCH 63
 
 /*---------.
 | Gnulib.  |
@@ -161,32 +175,32 @@ typedef size_t uintptr_t;
 #define obstack_sgrow(Obs, Str) \
   obstack_grow (Obs, Str, strlen (Str))
 
-#define obstack_fgrow1(Obs, Format, Arg1)	\
-do {						\
-  char buf[4096];				\
-  sprintf (buf, Format, Arg1);			\
-  obstack_grow (Obs, buf, strlen (buf));	\
+#define obstack_fgrow1(Obs, Format, Arg1)       \
+do {                                            \
+  char buf[4096];                               \
+  sprintf (buf, Format, Arg1);                  \
+  obstack_grow (Obs, buf, strlen (buf));        \
 } while (0)
 
-#define obstack_fgrow2(Obs, Format, Arg1, Arg2)	\
-do {						\
-  char buf[4096];				\
-  sprintf (buf, Format, Arg1, Arg2);		\
-  obstack_grow (Obs, buf, strlen (buf));	\
+#define obstack_fgrow2(Obs, Format, Arg1, Arg2) \
+do {                                            \
+  char buf[4096];                               \
+  sprintf (buf, Format, Arg1, Arg2);            \
+  obstack_grow (Obs, buf, strlen (buf));        \
 } while (0)
 
-#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)	\
-do {							\
-  char buf[4096];					\
-  sprintf (buf, Format, Arg1, Arg2, Arg3);		\
-  obstack_grow (Obs, buf, strlen (buf));		\
+#define obstack_fgrow3(Obs, Format, Arg1, Arg2, Arg3)   \
+do {                                                    \
+  char buf[4096];                                       \
+  sprintf (buf, Format, Arg1, Arg2, Arg3);              \
+  obstack_grow (Obs, buf, strlen (buf));                \
 } while (0)
 
-#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)	\
-do {								\
-  char buf[4096];						\
-  sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);		\
-  obstack_grow (Obs, buf, strlen (buf));			\
+#define obstack_fgrow4(Obs, Format, Arg1, Arg2, Arg3, Arg4)     \
+do {                                                            \
+  char buf[4096];                                               \
+  sprintf (buf, Format, Arg1, Arg2, Arg3, Arg4);                \
+  obstack_grow (Obs, buf, strlen (buf));                        \
 } while (0)
 
 
@@ -213,14 +227,14 @@ do {								\
 | Free a linked list.  |
 `---------------------*/
 
-#define LIST_FREE(Type, List)			\
-do {						\
-  Type *_node, *_next;				\
-  for (_node = List; _node; _node = _next)	\
-    {						\
-      _next = _node->next;			\
-      free (_node);				\
-    }						\
+#define LIST_FREE(Type, List)                   \
+do {                                            \
+  Type *_node, *_next;                          \
+  for (_node = List; _node; _node = _next)      \
+    {                                           \
+      _next = _node->next;                      \
+      free (_node);                             \
+    }                                           \
 } while (0)