X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/37e884cd9a249660f39b5b7290e1f4b3dcc851b0..84526bf3d156154d8372fff0d232dd4f347f2233:/src/system.h?ds=sidebyside diff --git a/src/system.h b/src/system.h index e3f17d89..0d69e93e 100644 --- a/src/system.h +++ b/src/system.h @@ -16,52 +16,64 @@ along with this program. If not, see . */ #ifndef BISON_SYSTEM_H -# define BISON_SYSTEM_H +#define BISON_SYSTEM_H /* flex 2.5.31 gratutiously defines macros like INT8_MIN. But this runs afoul of pre-C99 compilers that have or , which are included below if available. It also runs afoul of pre-C99 compilers that define these macros in . */ -# if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901 -# undef INT8_MIN -# undef INT16_MIN -# undef INT32_MIN -# undef INT8_MAX -# undef INT16_MAX -# undef UINT8_MAX -# undef INT32_MAX -# undef UINT16_MAX -# undef UINT32_MAX -# endif - -# include -# include -# include -# include - -# if HAVE_SYS_TYPES_H -# include -# endif - -# include -# include - -# ifndef UINTPTR_MAX +#if ! defined __STDC_VERSION__ || __STDC_VERSION__ < 199901 +# undef INT8_MIN +# undef INT16_MIN +# undef INT32_MIN +# undef INT8_MAX +# undef INT16_MAX +# undef UINT8_MAX +# undef INT32_MAX +# undef UINT16_MAX +# undef UINT32_MAX +#endif + +#include +#include +#include +#include + +#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 +#endif + +#include +#include + +#ifndef UINTPTR_MAX /* This isn't perfect, but it's good enough for Bison, which needs only to hash pointers. */ typedef size_t uintptr_t; -# endif +#endif // Version mismatch. -# define EX_MISMATCH 63 +#define EX_MISMATCH 63 /*---------. | Gnulib. | `---------*/ -# include -# include -# include +#include +#include +#include /*-----------------. @@ -80,49 +92,49 @@ typedef size_t uintptr_t; and safer logic than it would for users. Due to the overhead of M4, suppressing Code is unlikely to offer any significant improvement in Bison's performance anyway. */ -# define PACIFY_CC(Code) Code +#define PACIFY_CC(Code) Code -# ifndef __attribute__ +#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 +# if (! defined __GNUC__ || __GNUC__ < 2 \ + || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)) +# 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 +#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_NORETURN +# define ATTRIBUTE_NORETURN __attribute__ ((__noreturn__)) +#endif -# ifndef ATTRIBUTE_UNUSED -# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) -# endif +#ifndef ATTRIBUTE_UNUSED +# define ATTRIBUTE_UNUSED __attribute__ ((__unused__)) +#endif -# define FUNCTION_PRINT() fprintf (stderr, "%s: ", __func__) +#define FUNCTION_PRINT() fprintf (stderr, "%s: ", __func__) /*------. | NLS. | `------*/ -# include +#include -# include -# define _(Msgid) gettext (Msgid) -# define N_(Msgid) (Msgid) +#include +#define _(Msgid) gettext (Msgid) +#define N_(Msgid) (Msgid) /*-----------. | Booleans. | `-----------*/ -# include +#include @@ -148,47 +160,47 @@ typedef size_t uintptr_t; For now, we use assert but we call it aver throughout Bison in case we later wish to try another scheme. */ -# include -# define aver assert +#include +#define aver assert /*-----------. | Obstacks. | `-----------*/ -# define obstack_chunk_alloc xmalloc -# define obstack_chunk_free free -# include +#define obstack_chunk_alloc xmalloc +#define obstack_chunk_free free +#include -# define obstack_sgrow(Obs, Str) \ +#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) @@ -197,17 +209,17 @@ do { \ | Extensions to use for the output files. | `-----------------------------------------*/ -# ifndef OUTPUT_EXT -# define OUTPUT_EXT ".output" -# endif +#ifndef OUTPUT_EXT +# define OUTPUT_EXT ".output" +#endif -# ifndef TAB_EXT -# define TAB_EXT ".tab" -# endif +#ifndef TAB_EXT +# define TAB_EXT ".tab" +#endif -# ifndef DEFAULT_TMPDIR -# define DEFAULT_TMPDIR "/tmp" -# endif +#ifndef DEFAULT_TMPDIR +# define DEFAULT_TMPDIR "/tmp" +#endif @@ -215,14 +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)