Future/bison
1
0
Fork 0
mirror of https://git.savannah.gnu.org/git/bison.git synced 2026-03-09 04:13:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

c: improve port of stdint.h usage to pre-C99

Browse Source 
Oracle Solaris Studio 12.3 (Sun C 5.12 2011/11/16) by default does
not conform to C99; it defines __STDC_VERSION__ to be 199409L, so
the Bison code does not include <stdint.h> (not required by C89
amendment 1) even though this compiler does have <stdint.h>.  On
this platform <limits.h> defines INT_LEAST8_MAX (POSIX allows
this) so the skeleton got confused and thought that <stdint.h> had
been included even though it wasn’t.
* data/skeletons/c.m4 (b4_c99_int_type_define) [!__PTRDIFF_MAX__]:
Always include <limits.h>.
(YY_STDINT_H): Define when <stdint.h> was included.
All uses of expressions like ‘defined INT_LEAST8_MAX’ changed to
‘defined YY_STDINT_H’, since Sun C 5.12 <limits.h> defines macros
like INT_LEAST8_MAX but does not declare types like int_least8_t.
This commit is contained in:
Paul Eggert
2019-10-17 09:27:37 -07:00
parent 08dd5e9feb
commit 7a557ee7fe
1 changed files with 8 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
data/skeletons/c.m4
View File

@@ -202,13 +202,10 @@ m4_define([b4_c99_int_type_define],
so that the code can choose integer types of a good width. */
#ifndef __PTRDIFF_MAX__
# ifndef INT_MAX
# include <limits.h> /* INFRINGES ON USER NAME SPACE */
# endif
# ifndef PTRDIFF_MAX
# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
# include <stdint.h> /* INFRINGES ON USER NAME SPACE */
# endif
# include <limits.h> /* INFRINGES ON USER NAME SPACE */
# if defined __STDC_VERSION__ && 199901 <= __STDC_VERSION__
# include <stdint.h> /* INFRINGES ON USER NAME SPACE */
# define YY_STDINT_H
# endif
#endif
@@ -219,7 +216,7 @@ m4_define([b4_c99_int_type_define],
#ifdef __INT_LEAST8_MAX__
typedef __INT_LEAST8_TYPE__ yytype_int8;
#elif defined INT_LEAST8_MAX
#elif defined YY_STDINT_H
typedef int_least8_t yytype_int8;
#else
typedef signed char yytype_int8;
@@ -227,7 +224,7 @@ typedef signed char yytype_int8;
#ifdef __INT_LEAST16_MAX__
typedef __INT_LEAST16_TYPE__ yytype_int16;
#elif defined INT_LEAST16_MAX
#elif defined YY_STDINT_H
typedef int_least16_t yytype_int16;
#else
typedef short yytype_int16;
@@ -235,7 +232,7 @@ typedef short yytype_int16;
#if defined __UINT_LEAST8_MAX__ && __UINT_LEAST8_MAX__ <= __INT_MAX__
typedef __UINT_LEAST8_TYPE__ yytype_uint8;
#elif (!defined __UINT_LEAST8_MAX__ && defined UINT_LEAST8_MAX \
#elif (!defined __UINT_LEAST8_MAX__ && defined YY_STDINT_H \
&& UINT_LEAST8_MAX <= INT_MAX)
typedef uint_least8_t yytype_uint8;
#elif !defined __UINT_LEAST8_MAX__ && UCHAR_MAX <= INT_MAX
@@ -246,7 +243,7 @@ typedef short yytype_uint8;
#if defined __UINT_LEAST16_MAX__ && __UINT_LEAST16_MAX__ <= __INT_MAX__
typedef __UINT_LEAST16_TYPE__ yytype_uint16;
#elif (!defined __UINT_LEAST16_MAX__ && defined UINT_LEAST16_MAX \
#elif (!defined __UINT_LEAST16_MAX__ && defined YY_STDINT_H \
&& UINT_LEAST16_MAX <= INT_MAX)
typedef uint_least16_t yytype_uint16;
#elif !defined __UINT_LEAST16_MAX__ && USHRT_MAX <= INT_MAX