1 #ifndef _LIMITS_H 2 #define _LIMITS_H 3 4 #include <features.h> 5 6 #include <bits/alltypes.h> /* __LONG_MAX */ 7 8 /* Support signed or unsigned plain-char */ 9 10 #if '\xff' > 0 11 #define CHAR_MIN 0 12 #define CHAR_MAX 255 13 #else 14 #define CHAR_MIN (-128) 15 #define CHAR_MAX 127 16 #endif 17 18 #define CHAR_BIT 8 19 #define SCHAR_MIN (-128) 20 #define SCHAR_MAX 127 21 #define UCHAR_MAX 255 22 #define SHRT_MIN (-1-0x7fff) 23 #define SHRT_MAX 0x7fff 24 #define USHRT_MAX 0xffff 25 #define INT_MIN (-1-0x7fffffff) 26 #define INT_MAX 0x7fffffff 27 #define UINT_MAX 0xffffffffU 28 #define LONG_MIN (-LONG_MAX-1) 29 #define LONG_MAX __LONG_MAX 30 #define ULONG_MAX (2UL*LONG_MAX+1) 31 #define LLONG_MIN (-LLONG_MAX-1) 32 #define LLONG_MAX 0x7fffffffffffffffLL 33 #define ULLONG_MAX (2ULL*LLONG_MAX+1) 34 35 #define MB_LEN_MAX 4 36 37 #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ 38 || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 39 40 #include <bits/limits.h> 41 42 #define PIPE_BUF 4096 43 #define FILESIZEBITS 64 44 #ifndef NAME_MAX 45 #define NAME_MAX 255 46 #endif 47 #ifdef __LITEOS_A__ 48 #define PATH_MAX 256 49 #define ARG_MAX 4096 50 #else 51 #define PATH_MAX 4096 52 #define ARG_MAX 131072 53 #endif 54 #define NGROUPS_MAX 32 55 #define IOV_MAX 1024 56 #define SYMLOOP_MAX 40 57 #define WORD_BIT 32 58 #define SSIZE_MAX LONG_MAX 59 #define TZNAME_MAX 6 60 #define TTY_NAME_MAX 32 61 #define HOST_NAME_MAX 255 62 63 #if LONG_MAX == 0x7fffffffL 64 #define LONG_BIT 32 65 #else 66 #define LONG_BIT 64 67 #endif 68 69 /* Implementation choices... */ 70 71 #define PTHREAD_KEYS_MAX 128 72 #define PTHREAD_STACK_MIN 2048 73 #define PTHREAD_DESTRUCTOR_ITERATIONS 4 74 #define SEM_VALUE_MAX 0x7fffffff 75 #define SEM_NSEMS_MAX 256 76 #define DELAYTIMER_MAX 0x7fffffff 77 #ifdef __LITEOS_A__ 78 #define MQ_PRIO_MAX 1 79 #else 80 #define MQ_PRIO_MAX 32768 81 #endif 82 #define LOGIN_NAME_MAX 256 83 84 /* Arbitrary numbers... */ 85 86 #define BC_BASE_MAX 99 87 #define BC_DIM_MAX 2048 88 #define BC_SCALE_MAX 99 89 #define BC_STRING_MAX 1000 90 #define CHARCLASS_NAME_MAX 14 91 #define COLL_WEIGHTS_MAX 2 92 #define EXPR_NEST_MAX 32 93 #define LINE_MAX 4096 94 #define RE_DUP_MAX 255 95 96 #define NL_ARGMAX 9 97 #define NL_MSGMAX 32767 98 #define NL_SETMAX 255 99 #define NL_TEXTMAX 2048 100 101 #endif 102 103 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE) 104 105 #ifdef PAGESIZE 106 #define PAGE_SIZE PAGESIZE 107 #endif 108 #define NZERO 20 109 #define NL_LANGMAX 32 110 111 #endif 112 113 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \ 114 || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700) 115 116 #define NL_NMAX 16 117 118 #endif 119 120 /* POSIX/SUS requirements follow. These numbers come directly 121 * from SUS and have nothing to do with the host system. */ 122 123 #define _POSIX_AIO_LISTIO_MAX 2 124 #define _POSIX_AIO_MAX 1 125 #define _POSIX_ARG_MAX 4096 126 #define _POSIX_CHILD_MAX 25 127 #define _POSIX_CLOCKRES_MIN 20000000 128 #define _POSIX_DELAYTIMER_MAX 32 129 #define _POSIX_HOST_NAME_MAX 255 130 #define _POSIX_LINK_MAX 8 131 #define _POSIX_LOGIN_NAME_MAX 9 132 #define _POSIX_MAX_CANON 255 133 #define _POSIX_MAX_INPUT 255 134 #define _POSIX_MQ_OPEN_MAX 8 135 #define _POSIX_MQ_PRIO_MAX 32 136 #define _POSIX_NAME_MAX 14 137 #define _POSIX_NGROUPS_MAX 8 138 #define _POSIX_OPEN_MAX 20 139 #define _POSIX_PATH_MAX 256 140 #define _POSIX_PIPE_BUF 512 141 #define _POSIX_RE_DUP_MAX 255 142 #define _POSIX_RTSIG_MAX 8 143 #define _POSIX_SEM_NSEMS_MAX 256 144 #define _POSIX_SEM_VALUE_MAX 32767 145 #define _POSIX_SIGQUEUE_MAX 32 146 #define _POSIX_SSIZE_MAX 32767 147 #define _POSIX_STREAM_MAX 8 148 #define _POSIX_SS_REPL_MAX 4 149 #define _POSIX_SYMLINK_MAX 255 150 #define _POSIX_SYMLOOP_MAX 8 151 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 152 #define _POSIX_THREAD_KEYS_MAX 128 153 #define _POSIX_THREAD_THREADS_MAX 64 154 #define _POSIX_TIMER_MAX 32 155 #define _POSIX_TRACE_EVENT_NAME_MAX 30 156 #define _POSIX_TRACE_NAME_MAX 8 157 #define _POSIX_TRACE_SYS_MAX 8 158 #define _POSIX_TRACE_USER_EVENT_MAX 32 159 #define _POSIX_TTY_NAME_MAX 9 160 #define _POSIX_TZNAME_MAX 6 161 #define _POSIX2_BC_BASE_MAX 99 162 #define _POSIX2_BC_DIM_MAX 2048 163 #define _POSIX2_BC_SCALE_MAX 99 164 #define _POSIX2_BC_STRING_MAX 1000 165 #define _POSIX2_CHARCLASS_NAME_MAX 14 166 #define _POSIX2_COLL_WEIGHTS_MAX 2 167 #define _POSIX2_EXPR_NEST_MAX 32 168 #define _POSIX2_LINE_MAX 2048 169 #define _POSIX2_RE_DUP_MAX 255 170 171 #define _XOPEN_IOV_MAX 16 172 #define _XOPEN_NAME_MAX 255 173 #define _XOPEN_PATH_MAX 1024 174 175 #endif 176