+
+/*---------.
+| Gnulib. |
+`---------*/
+
+#include <unlocked-io.h>
+#include <verify.h>
+#include <xalloc.h>
+
+
+/*-----------------.
+| GCC extensions. |
+`-----------------*/
+
+/* Use this to suppress gcc's `...may be used before initialized'
+ warnings. */
+#ifdef lint
+# define IF_LINT(Code) Code
+#else
+# define IF_LINT(Code) /* empty */
+#endif
+
+#ifndef __attribute__
+/* This feature is available in gcc versions 2.5 and later. */
+# if (! defined __GNUC__ || __GNUC__ < 2 \
+ || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__)
+# define __attribute__(Spec) /* empty */
+# endif
+#endif
+
+/* The __-protected variants of `format' and `printf' attributes
+ are accepted by gcc versions 2.6.4 (effectively 2.7) and later. */
+#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7)
+# define __format__ format
+# define __printf__ printf
+#endif
+
+#ifndef ATTRIBUTE_NORETURN
+# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__))
+#endif
+
+#ifndef ATTRIBUTE_UNUSED
+# define ATTRIBUTE_UNUSED __attribute__ ((__unused__))
+#endif
+
+#define FUNCTION_PRINT() fprintf (stderr, "%s: ", __func__)
+
+/*------.
+| NLS. |
+`------*/
+
+#include <locale.h>
+
+#include <gettext.h>
+#define _(Msgid) gettext (Msgid)
+#define N_(Msgid) (Msgid)
+
+
+/*-----------.
+| Booleans. |
+`-----------*/
+
+#include <stdbool.h>
+
+
+
+/*-------------.
+| Assertions. |
+`-------------*/
+
+/* In the past, Bison defined aver to simply invoke abort in the case of
+ a failed assertion. The rationale was that <assert.h>'s assertions
+ were too heavyweight and could be disabled too easily. See
+ discussions at
+ <http://lists.gnu.org/archive/html/bison-patches/2006-01/msg00080.html>
+ <http://lists.gnu.org/archive/html/bison-patches/2006-09/msg00111.html>.
+
+ However, normal assert output can be helpful during development and
+ in bug reports from users. Moreover, it's not clear now that
+ <assert.h>'s assertions are significantly heavyweight. Finally, if
+ users want to experiment with disabling assertions, it's debatable
+ whether it's our responsibility to stop them. See discussion
+ starting at
+ <http://lists.gnu.org/archive/html/bison-patches/2009-09/msg00013.html>.
+
+ For now, we use assert but we call it aver throughout Bison in case
+ we later wish to try another scheme.
+*/
+#include <assert.h>
+#define aver assert
+
+
+/*-----------.
+| Obstacks. |
+`-----------*/
+
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free free
+#include <obstack.h>
+
+#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)); \
+} while (0)
+
+#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)); \
+} 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)); \
+} while (0)
+
+
+
+/*-----------------------------------------.
+| Extensions to use for the output files. |
+`-----------------------------------------*/
+
+#ifndef OUTPUT_EXT
+# define OUTPUT_EXT ".output"
+#endif
+
+#ifndef TAB_EXT
+# define TAB_EXT ".tab"
+#endif
+
+#ifndef DEFAULT_TMPDIR
+# define DEFAULT_TMPDIR "/tmp"
+#endif
+
+
+
+/*---------------------.
+| Free a linked list. |
+`---------------------*/
+
+#define LIST_FREE(Type, List) \
+do { \
+ Type *_node, *_next; \
+ for (_node = List; _node; _node = _next) \
+ { \
+ _next = _node->next; \
+ free (_node); \
+ } \
+} while (0)
+
+
+/*---------------------------------------------.
+| Debugging memory allocation (must be last). |
+`---------------------------------------------*/
+
+# if WITH_DMALLOC
+# define DMALLOC_FUNC_CHECK
+# include <dmalloc.h>
+# endif /* WITH_DMALLOC */
+
+#endif /* ! BISON_SYSTEM_H */
projects / bison.git / blobdiff