diff options
Diffstat (limited to 'include/bits/xopen_lim.h')
| -rw-r--r-- | include/bits/xopen_lim.h | 51 |
1 files changed, 41 insertions, 10 deletions
diff --git a/include/bits/xopen_lim.h b/include/bits/xopen_lim.h index 823c801e48..e874dba73c 100644 --- a/include/bits/xopen_lim.h +++ b/include/bits/xopen_lim.h @@ -92,23 +92,54 @@ /* Number of bits in a word of type `int'. */ -#if INT_MAX == 32767 -# define WORD_BIT 16 -#else -# if INT_MAX == 2147483647 -# define WORD_BIT 32 +#ifdef INT_MAX +# if INT_MAX == 32767 +# define WORD_BIT 16 +# else +# if INT_MAX == 2147483647 +# define WORD_BIT 32 +# else +/* Safe assumption. */ +# define WORD_BIT 64 +# endif +# endif +#elif defined __INT_MAX__ +# if __INT_MAX__ == 32767 +# define WORD_BIT 16 # else +# if __INT_MAX__ == 2147483647 +# define WORD_BIT 32 +# else /* Safe assumption. */ -# define WORD_BIT 64 +# define WORD_BIT 64 +# endif # endif +#else +# define WORD_BIT 32 #endif /* Number of bits in a word of type `long int'. */ -#if LONG_MAX == 2147483647 -# define LONG_BIT 32 -#else +#ifdef LONG_MAX +# if LONG_MAX == 2147483647 +# define LONG_BIT 32 +# else /* Safe assumption. */ -# define LONG_BIT 64 +# define LONG_BIT 64 +# endif +#elif defined __LONG_MAX__ +# if __LONG_MAX__ == 2147483647 +# define LONG_BIT 32 +# else +/* Safe assumption. */ +# define LONG_BIT 64 +# endif +#else +# include <bits/wordsize.h> +# if __WORDSIZE == 64 +# define LONG_BIT 64 +# else +# define LONG_BIT 32 +# endif #endif #endif /* bits/xopen_lim.h */ |